TW202304782A - Multilayer body for molding containers, molding container and package - Google Patents

Abstract

To provide a multilayer body for molding containers, the multilayer body enabling the achievement of a molding container that exhibits excellent sealing performance without a fear of damaging openability due to deformation of a flange part at the time when the molding container is opened. A multilayer body 1 for molding containers according to the present invention is used as a material for a cup-shaped molding container 2 that has a flange part 23 at the peripheral edge of an opening; and this multilayer body 1 for molding containers sequentially comprises a protective layer 11 that is formed of a synthetic resin, a barrier layer 13 that is formed of an aluminum foil, and a sealing layer 15 that is formed of a thermally fusible resin in this order from the outer side. If [sigma]A (N/mm2) is the tensile yield strength of the protective layer 11, tA (mm) is the thickness of the protective layer 11, [sigma]B (N/mm2) is the tensile strength of the barrier layer 13, tB is the thickness of the barrier layer 13, [sigma]C (N/mm2) is the tensile yield strength of the sealing layer 15, and tC (mm) is the thickness of the sealing layer 15, 16 ≤ [sigma]A * tA + [sigma]B * tB + [sigma]C * tC ≤ 25 is satisfied.

Description

Translated fromChinese

用於成形容器的積層體、成形容器及包裝體Laminates for molded containers, molded containers, and packages

本發明係關於一種積層體，其用作高阻隔成形容器的材料，以將作為內容物的食品、醫療藥品、電子零件等密封包裝；並且關於一種由該積層體成形而成的成形容器及使用該成形容器將內容物密封包裝而成的包裝體。The present invention relates to a laminate used as a material for a high-barrier shaped container for hermetically packaging food, medical drugs, electronic parts, etc. as contents; The molded container is a package in which the contents are hermetically packaged.

金屬疊層包材，係將熱塑性或熱硬化性的合成樹脂貼合於金屬箔的雙面上而成的積層體，藉由對其進行抽拉（drawing）加工等成形而成的高阻隔成形容器，以往係用來作為長期保存食品或藥品等容易變質之內容物的手段。尤其是使用了鋁箔（包含純鋁箔、鋁合金箔兩者，以下相同）的疊層包材，阻隔光、水分及氧等的效果高且成本低，因此有大量的需求。Metal laminated packaging material is a laminate formed by laminating thermoplastic or thermosetting synthetic resin on both sides of metal foil, and it is formed by drawing (drawing) processing and other high-barrier molding. Containers have traditionally been used as a means for long-term storage of easily perishable contents such as food or medicine. In particular, laminated packaging materials using aluminum foil (both pure aluminum foil and aluminum alloy foil, hereinafter the same) are highly effective in blocking light, moisture, oxygen, etc., and are low in cost, so there is a large demand.

將食品等內容物填充密封於高阻隔成形容器時，一般係藉由將內容物填充於該成形容器並將蓋材熱封於成形容器的凸緣部上以製作包裝體後，對於所得之包裝體進行煮沸（boil）殺菌或蒸煮（retort）殺菌等，藉此進行加熱殺菌處理。此時有因加熱導致包裝體膨脹而損及密封性的疑慮，但若相反地提高密封性，則有開封性降低這樣的問題。When filling and sealing food and other contents into high-barrier shaped containers, it is generally done by filling the contents into the shaped container and heat-sealing the lid on the flange of the shaped container to make a package. The body is subjected to boiling (boil) sterilization or retort (retort) sterilization, etc., thereby performing heat sterilization treatment. At this time, there is a possibility that the sealing performance may be impaired due to expansion of the package due to heating, but if the sealing performance is improved conversely, there is a problem that the opening performance may be lowered.

針對上述高阻隔成形容器的密封性及開封性的課題，已揭示了例如下述的先行技術。 專利文獻1中揭示了與下述積層體相關的技術：藉由使用丙烯-乙烯-丁烯共擠製膜作為構成成形容器用積層體之密封層的密封膜，因煮沸等加熱處理導致開封強度降低的幅度小，並可維持易開封性，製作容器時的成形性亦為理想。 專利文獻2中揭示了下述技術：僅在容器用蓋材的熱封層設置微孔，在保持蓋材的阻隔性及密封性的狀態下降低開封起始強度，藉此賦予易開封性。 專利文獻3揭示了下述技術：在將由鋁箔及被覆其雙面之合成樹脂被覆層所構成的疊層材成形而成的容器中，將凸緣部彎折而形成雙重凸緣結構，藉此提高凸緣部的剛性，而賦予開封所需之凸緣強度。 又，專利文獻4揭示了下述技術：在將合成樹脂層、鋁箔層及保護層依序積層而成的成形容器用積層體中，規定鋁箔的拉伸強度、伸率、耐力、耳率與合成樹脂層之拉伸彈性係數的比、破斷強度的比、伸率的比，藉此成形性、容器的形狀保持性優良，在蒸煮殺菌後的凸緣部不會產生波折。For the above-mentioned problems of sealing performance and unsealing performance of high-barrier molded containers, for example, the following prior art has been disclosed.Patent Document 1 discloses a technology related to a laminate in which the strength of opening due to heat treatment such as boiling is reduced by using a propylene-ethylene-butylene co-extruded film as a sealing film constituting a sealing layer of a laminate for a molded container. The reduction is small, and the easy-openability can be maintained, and the formability when making containers is also ideal.Patent Document 2 discloses a technique of providing easy-openability by providing micropores only in the heat-sealing layer of the lid material for containers, and reducing the initial strength of opening while maintaining the barrier and sealing properties of the lid material.Patent Document 3 discloses a technique of forming a double-flange structure by bending the flange portion in a container formed of a laminated material composed of aluminum foil and a synthetic resin coating layer covering both sides thereof. Improve the rigidity of the flange part, and give the flange strength required for opening. In addition,Patent Document 4 discloses a technique of specifying the tensile strength, elongation, endurance, lug ratio and The ratio of tensile modulus, breaking strength, and elongation of the synthetic resin layer is excellent in formability and shape retention of the container, and no waviness occurs in the flange after retort sterilization.

又，在藉由將內容物填充於高阻隔成形容器中並密封以製造包裝體時，一般在自動化生產線中，係在成形容器中填充了內容物後，將蓋材熱封於成形容器的凸緣部上。 此處，投入自動化生產線的成形容器之凸緣部若因為波折、扭曲、翹曲等而變形，則在產線上在利用凸緣部進行堆疊的狀態下取出成形容器以及運送成形容器時會發生障礙。因此要求成形容器之凸緣部的形狀平坦，成形容器的形狀、尺寸設有規格公差。Also, when the package is manufactured by filling the contents in a high-barrier shaped container and sealing it, generally in an automated production line, after filling the shaped container with the contents, the lid material is heat-sealed to the protrusion of the shaped container. on the edge. Here, if the flange part of the molded container put into the automated production line is deformed by twisting, twisting, warping, etc., it will cause trouble when taking out the molded container and transporting the molded container in the state of being stacked by the flange part on the production line. . Therefore, the shape of the flange portion of the molded container is required to be flat, and the shape and size of the molded container have standard tolerances.

針對上述高阻隔成形容器的成形性及凸緣部的課題，例如有人揭示了下述先前技術。 專利文獻5中揭示了下述技術：為了以蓋材進行熱封而將成形容器密封使凸緣部平滑，並且在凸緣部外周設置緣捲部而賦予剛性，以抑制因加熱導致的凸緣部產生波折。 專利文獻6中揭示了用以對於成形容器的凸緣部外周實施彎曲加工（緣捲加工）的工具以及彎曲加工方法的相關技術，藉由使用此等技術，可防止凸緣部的內周（根部）附近產生皺褶。 專利文獻7中揭示了下述技術：為了防止由合成樹脂片成形而成的容器之凸緣部的翹曲而在凸緣部形成特定的彎折結構。 專利文獻8中揭示了下述技術：在將熱熔接樹脂層、熱塑性樹脂層、鋁箔層及熱塑性樹脂層依序積層而成的成形容器用積層體中，規定鋁箔的拉伸強度與伸率及熱塑性樹脂層的拉伸強度與伸率，藉此抑制成形時產生針孔，並且更深度地進行成形。 又，專利文獻4中揭示了下述技術：在將合成樹脂層、鋁箔層及保護層依序積層而成的成形容器用積層體中，規定鋁箔的拉伸強度、伸率、耐力、耳率與合成樹脂層的拉伸彈性係數的比、破斷強度的比、伸率的比，藉此成形性、容器的形狀保持性優良，在蒸煮殺菌後的凸緣部不會產生波紋。 ［先前技術文獻］ ［專利文獻］With regard to the problems of moldability and flange portions of the above-mentioned high-barrier molded containers, for example, the following prior art has been disclosed.Patent Document 5 discloses a technique of sealing a molded container with a lid material for heat sealing, making the flange smooth, and providing rigidity by providing a bead portion on the outer periphery of the flange, so as to suppress the flange caused by heating. There are twists and turns.Patent Document 6 discloses techniques related to a tool and a bending method for bending the outer periphery of the flange portion of a shaped container (flange processing). By using these technologies, it is possible to prevent the inner periphery of the flange portion from Wrinkles near the root).Patent Document 7 discloses a technique of forming a specific bent structure in the flange portion in order to prevent warping of the flange portion of a container molded from a synthetic resin sheet.Patent Document 8 discloses a technique of specifying the tensile strength, elongation and The tensile strength and elongation of the thermoplastic resin layer can suppress pinholes during molding and allow deeper molding. In addition,Patent Document 4 discloses a technique of specifying the tensile strength, elongation, endurance, and ear ratio of the aluminum foil in a laminate for molded containers obtained by sequentially laminating a synthetic resin layer, an aluminum foil layer, and a protective layer. The ratio of the modulus of elasticity to the synthetic resin layer, the ratio of the breaking strength, and the ratio of the elongation are excellent in formability and shape retention of the container, and no waviness occurs in the flange portion after retort sterilization. [Prior Technical Literature] [Patent Document]

［專利文獻1］日本特開2003-103727號公報 ［專利文獻2］日本特開2013-1449號公報 ［專利文獻3］日本特開2009-166078號公報 ［專利文獻4］日本特開平2-167740號公報 ［專利文獻5］日本特開平3-275475號公報 ［專利文獻6］日本特公平4-44533號公報 ［專利文獻7］日本專利第2898235號公報 ［專利文獻8］日本特開昭58-112732號公報[Patent Document 1] Japanese Patent Laid-Open No. 2003-103727 [Patent Document 2] Japanese Unexamined Patent Publication No. 2013-1449 [Patent Document 3] Japanese Patent Laid-Open No. 2009-166078 [Patent Document 4] Japanese Patent Application Laid-Open No. 2-167740 [Patent Document 5] Japanese Patent Application Laid-Open No. 3-275475 [Patent Document 6] Japanese Patent Publication No. 4-44533 [Patent Document 7] Japanese Patent No. 2898235 [Patent Document 8] Japanese Patent Application Laid-Open No. 58-112732

［發明所欲解決之課題］[Problem to be solved by the invention]

然而，與高阻隔成形容器之密封性及開封性之課題對應的上述先前技術1至4具有下述問題點。 首先，如專利文獻1及專利文獻2，即使積層了易開封性的密封層作為成形容器用積層體及蓋材的密封層，成形容器的凸緣部本身的強度弱的情況下，在開封時凸緣部會與蓋材的舌片一起被拉起，導致開封性降低，而有開封困難的情況。 如專利文獻3，將成形容器的凸緣部彎折而形成雙重凸緣結構的情況中，凸緣部的剛性雖提升而可確保開封性，但必須設置用以彎折凸緣部的專用模具及專用步驟，而有製造成本變高這樣的問題。 又，專利文獻4中，藉由規定鋁箔層及合成樹脂層的機械性質，可在成形時不發生破裂、凸緣部不會產生皺褶、且可進行凸緣部的彎曲（緣捲），但並未見蒸煮殺菌後之開封性及密封性的相關記載。However, the above-mentionedprior arts 1 to 4 that deal with the problems of sealing and unsealability of high-barrier molded containers have the following problems. First, as inPatent Document 1 andPatent Document 2, even if an easily-openable sealing layer is laminated as the sealing layer of the laminate for the molded container and the lid material, if the strength of the flange portion of the molded container itself is weak, the The flange portion is pulled up together with the tongue piece of the lid material, which reduces the unsealing property and may make unsealing difficult. As inPatent Document 3, in the case of forming a double-flange structure by bending the flange portion of the molded container, the rigidity of the flange portion is increased to ensure unsealability, but it is necessary to install a special mold for bending the flange portion. and dedicated steps, there is a problem that the manufacturing cost becomes high. In addition, inPatent Document 4, by specifying the mechanical properties of the aluminum foil layer and the synthetic resin layer, no cracks will occur during molding, no wrinkles will be generated in the flange portion, and the flange portion can be bent (wrapped). But there is no relevant record about the unsealing and sealing properties after cooking and sterilization.

又，與高阻隔成形容器之成形性及凸緣部的課題對應的上述先前技術4至8具有下述問題點。 首先，如專利文獻5，若在成形容器的凸緣部上設置緣捲部而賦予剛性，則容易將蓋材密封，並且防止凸緣部的波折，但需要在凸緣部形成緣捲部的模具而導致成本變高。又，此手段無法應用於未在凸緣部設計緣捲部的成形容器。 如專利文獻6，藉由成形工具的設計來控制凸緣部形狀的手法，在於金屬箔的雙面上積層厚度及種類不同之樹脂片的積層體中，對於凸緣部的波折及扭曲的改善效果不明，而且改造既有的沖壓成形機及調整工具需要費用。 如專利文獻7，若在成形容器的凸緣部上形成特定的彎折結構，雖可防止凸緣部的翹曲，但需要製作特定彎折結構的模具而導致成本變高。又，此手段無法應用於未在凸緣部設計彎折結構的成形容器。 專利文獻8中，規定成形容器用積層體中的鋁箔層與熱塑性樹脂層的拉伸強度與伸率而提升積層體的成形性，但並未考量成形後凸緣部中的變形（皺褶、波折、翹曲等），而有凸緣部變形的情況。 又，專利文獻4中，藉由規定鋁箔層及合成樹脂層的機械性質，可在成形時不發生破裂、在凸緣部不會產生皺褶、且可進行凸緣部的彎曲（緣捲），但並未考量保護層對於成形性及凸緣部的影響，防止凸緣部產生波折的效果並不明確。In addition, the above-mentionedprior arts 4 to 8 that deal with the problems of the moldability and the flange portion of the high-barrier molded container have the following problems. First, as inPatent Document 5, if a flange portion is provided on the flange portion of the molded container to impart rigidity, it is easy to seal the lid material and prevent the buckling of the flange portion, but it is necessary to form a flange portion on the flange portion. Molds lead to higher costs. Also, this method cannot be applied to a shaped container that does not have a bead portion in the flange portion. As inPatent Document 6, the method of controlling the shape of the flange part by designing the forming tool is to improve the waviness and twist of the flange part in a laminate of resin sheets with different thicknesses and types on both sides of the metal foil. The effect is unknown, and it will cost money to modify the existing press forming machine and adjust the tool. As inPatent Document 7, if a specific bending structure is formed on the flange of the molded container, although the warping of the flange can be prevented, it is necessary to manufacture a mold with a specific bending structure, resulting in high cost. Also, this method cannot be applied to shaped containers that do not have a bent structure in the flange portion. InPatent Document 8, the tensile strength and elongation of the aluminum foil layer and the thermoplastic resin layer in the laminate for molded containers are specified to improve the formability of the laminate, but deformation (wrinkles, twists and turns, warping, etc.), and there are cases where the flange part is deformed. In addition, inPatent Document 4, by specifying the mechanical properties of the aluminum foil layer and the synthetic resin layer, no cracks will occur during molding, no wrinkles will be generated on the flange portion, and the flange portion can be bent (wrapped). , but the influence of the protective layer on the formability and the flange is not considered, and the effect of preventing the waviness of the flange is not clear.

本發明之第一目的係在於提供一種成形容器用積層體，其沒有在開封時凸緣部變形而損及開封性的疑慮，而可得到密封性優良的成形容器。A first object of the present invention is to provide a laminate for shaped containers capable of obtaining shaped containers excellent in airtightness without fear of impairing unsealing performance due to deformation of the flange portion during unsealing.

又，本發明之第二目的在於提供一種成形容器用積層體，例如其在成形後或蒸煮殺菌後，可抑制成形容器的凸緣部產生波折等變形，可保持凸緣部的平滑性而得到密封性良好的成形容器。 ［解決課題之手段］In addition, the second object of the present invention is to provide a laminate for shaped containers, for example, after forming or after retort sterilization, deformation such as waviness of the flange portion of the formed container can be suppressed, and the smoothness of the flange portion can be maintained. Well-sealed shaped container. [Means to solve the problem]

本發明的第一態樣，為了達成上述第一目的而以下述態樣所構成。The first aspect of the present invention is constituted in the following aspects in order to achieve the above-mentioned first object.

1）一種成形容器用積層體，其係用作開口周緣具有凸緣部之杯狀成形容器的材料，其中， 從外側依序具有由合成樹脂所構成的保護層、由鋁箔所構成的阻隔層及由熱熔接性樹脂所構成的密封層； 當保護層的拉伸降伏強度：σA（N/mm²）； 保護層的厚度：tA（mm）； 阻隔層的拉伸強度：σB（N/mm²）； 阻隔層的厚度：tB（mm）； 密封層的拉伸降伏強度：σC（N/mm²）； 密封層的厚度：tC（mm）時，16≦σA×tA+σB×tB+σC×tC≦25。 另外，本發明的第一態樣中，「保護層的拉伸降伏強度」「密封層的拉伸降伏強度」係指在縱向（MD）、橫向（TD）及45°方向上，依據JIS　K7127：1999（塑膠-拉伸特性的試驗方法），以試片的寬度10mm、標點間距離50mm，拉伸速度100mm/分鐘的條件對於構成保護層的合成樹脂或構成密封層的熱塑性樹脂進行測量所得到的拉伸降伏強度之相加平均值。 又，「阻隔層的拉伸強度」係指在縱向（MD=壓延方向）、橫向（TD=與壓延方向正交之方向）及45°方向上，以試片的寬度10mm、標點間距離100mm、拉伸速度30mm/分鐘的條件對於構成阻隔層的鋁箔進行測量所得到的拉伸強度之相加平均值。1) A laminate for a shaped container, which is used as a material for a cup-shaped shaped container having a flange at the periphery of the opening, wherein a protective layer made of synthetic resin and a barrier layer made of aluminum foil are sequentially provided from the outside And the sealing layer made of heat-melt resin; When the tensile yield strength of the protective layer: σA (N/mm² ); The thickness of the protective layer: tA (mm); The tensile strength of the barrier layer: σB (N/mm 2 ); mm² ); Thickness of barrier layer: tB (mm); Tensile yield strength of sealing layer: σC (N/mm² ); Thickness of sealing layer: tC (mm), 16≦σA×tA+σB×tB +σC×tC≦25. In addition, in the first aspect of the present invention, "the tensile yield strength of the protective layer" and "the tensile yield strength of the sealing layer" refer to the longitudinal (MD), transverse (TD) and 45° directions according to JIS K7127 : 1999 (Plastic-Test Method for Tensile Properties), under the condition that the width of the test piece is 10mm, the distance between punctuation points is 50mm, and the tensile speed is 100mm/min, the synthetic resin constituting the protective layer or the thermoplastic resin constituting the sealing layer are measured. The summed average of the obtained tensile yield strengths. Also, the "tensile strength of the barrier layer" refers to the longitudinal direction (MD=calendering direction), transverse direction (TD=direction perpendicular to the calendering direction) and 45° direction, when the width of the test piece is 10mm and the distance between the dots is 100mm , The summed average value of the tensile strength obtained by measuring the aluminum foil constituting the barrier layer under the condition of a tensile speed of 30 mm/min.

2）如上述1）之成形容器用積層體，其中密封層係由聚烯烴樹脂的單層膜或多層膜所構成，密封層的厚度：tC為0.06至0.4mm。2) The laminate for molded containers as in 1) above, wherein the sealing layer is composed of a polyolefin resin single-layer film or multi-layer film, and the thickness of the sealing layer: tC is 0.06 to 0.4mm.

3）如上述1）或2）之成形容器用積層體，其中阻隔層的厚度：tB為0.06至0.18mm。3) The laminate for shaped containers according to 1) or 2) above, wherein the thickness of the barrier layer: tB is 0.06 to 0.18 mm.

4）如上述1）至3）中任一項之成形容器用積層體，其中保護層係由聚烯烴樹脂、聚酯樹脂或聚醯胺樹脂的單層膜或多層膜所構成，保護層的厚度：tA為0.03至0.2mm。4) The laminate for shaped containers according to any one of 1) to 3) above, wherein the protective layer is composed of a single-layer film or a multi-layer film of polyolefin resin, polyester resin, or polyamide resin, and the protective layer Thickness: tA is 0.03 to 0.2mm.

5）一種成形容器，其係在開口周緣具有凸緣部之杯狀成形容器，其係以密封層為成形容器之內側的方式將如上述1）至4）中任一項之成形容器用積層體成形為杯狀。5) A shaped container, which is a cup-shaped shaped container having a flange at the periphery of the opening, and which is formed by laminating any one of the above-mentioned 1) to 4) for the shaped container in such a manner that the sealing layer is the inner side of the shaped container. The body is cup-shaped.

6）如上述5）之成形容器，其凸緣部的寬度為3至20mm。6) In the molded container as in 5) above, the width of the flange portion is 3 to 20 mm.

7）一種包裝體，其係將蓋材的底面周緣部熱熔接於填充有內容物的上述5）或6）之成形容器的凸緣部頂面而成。7) A package formed by heat-welding the bottom peripheral edge of the lid material to the top surface of the flange of the above-mentioned 5) or 6) molded container filled with contents.

8）如上述7）的包裝體，其中由成形容器的凸緣部頂面與蓋材的底面周緣部熱熔接而成的密封部之寬度為2至18mm。8) The package according to 7) above, wherein the width of the sealing portion formed by thermally welding the top surface of the flange portion of the molded container and the peripheral portion of the bottom surface of the lid material is 2 to 18 mm.

9）如上述7）或8）之包裝體，其破裂時最大壓力為40kPa以上。 另外，本發明的第一態樣中，「破裂時最大壓力」係指依據JIS Z0238:1998所規定的「容器的破裂強度試驗方法」，以125℃、20分鐘的條件將包裝體進行蒸煮處理後，在其蓋材的表面上貼附厚度1mm的橡膠片，從橡膠片的上方刺入空氣針，將壓縮空氣以1.0±0.2公升/min的量送入包裝體內，包裝體破裂時的最大壓力（容器內壓力）。9) As for the packaging body in the above 7) or 8), the maximum pressure at the time of rupture is above 40kPa. In addition, in the first aspect of the present invention, the "maximum pressure at the time of rupture" means that the package is subjected to retort treatment at 125°C for 20 minutes in accordance with the "Test method for bursting strength of containers" stipulated in JIS Z0238:1998. Finally, stick a rubber sheet with a thickness of 1mm on the surface of the cover material, pierce the air needle from the top of the rubber sheet, and send compressed air into the package at a rate of 1.0±0.2 liters/min. When the package breaks, the maximum Pressure (pressure inside the container).

本發明的第二態樣，為了達成上述第二目的，而以下述態樣所構成。The second aspect of the present invention is constituted in the following aspects in order to achieve the above-mentioned second object.

11）一種成形容器用積層體，用作開口周緣具有凸緣部之杯狀成形容器的材料，其中， 從外側依序具有由合成樹脂所構成的保護層、由鋁箔所構成的阻隔層及由熱熔接性樹脂所構成的密封層； 當保護層的拉伸降伏強度：σA（N/mm²）； 保護層的厚度：tA（mm）； 阻隔層的拉伸強度：σB（N/mm²）； 阻隔層的厚度：tB（mm）； 密封層的拉伸降伏強度：σC（N/mm²）； 密封層的厚度：tC（mm）時，0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95。 另外，本發明的第二態樣中，「保護層的拉伸降伏強度」「密封層的拉伸降伏強度」係指在縱向（MD）、橫向（TD）及45°方向上，依據JIS K7127：1999（塑膠-拉伸特性的試驗方法），以試片的寬度10mm、標點間距離50mm、拉伸速度100mm/分鐘的條件對於構成保護層之合成樹脂或構成密封層的熱塑性樹脂測量所得到的拉伸降伏強度之相加平均值。 又，「阻隔層的拉伸強度」係指在縱向（MD=壓延方向）、橫向（TD=與壓延方向垂直之方向）及45°方向上，以試片的寬度10mm、標點間距離100mm、拉伸速度30mm/分鐘的條件對於構成阻隔層的鋁箔測量所得之拉伸強度之相加平均值。11) A laminate for molded containers used as a material for a cup-shaped molded container having a flange at the periphery of the opening, wherein a protective layer made of synthetic resin, a barrier layer made of aluminum foil, and a protective layer made of aluminum foil are sequentially provided from the outside Sealing layer made of heat-melt resin; When the tensile yield strength of the protective layer: σA (N/mm² ); The thickness of the protective layer: tA (mm); The tensile strength of the barrier layer: σB (N/mm² ); Thickness of barrier layer: tB (mm); Tensile yield strength of sealing layer: σC (N/mm² ); Thickness of sealing layer: tC (mm), 0.1≦(σA×tA+σC×tC) /(σB×tB)≦0.95. In addition, in the second aspect of the present invention, "the tensile yield strength of the protective layer" and "the tensile yield strength of the sealing layer" refer to the longitudinal (MD), transverse (TD) and 45° directions according to JIS K7127 : 1999 (Plastic-Test Method for Tensile Properties), obtained by measuring the synthetic resin constituting the protective layer or the thermoplastic resin constituting the sealing layer under the conditions of the width of the test piece is 10mm, the distance between punctuation points is 50mm, and the tensile speed is 100mm/min. The summed average value of the tensile yield strength. In addition, "tensile strength of the barrier layer" refers to the longitudinal direction (MD=calendering direction), transverse direction (TD=direction perpendicular to the calendering direction) and 45° direction, when the width of the test piece is 10mm, the distance between punctuation points is 100mm, The average value of the tensile strength measured for the aluminum foil constituting the barrier layer under the condition of a tensile speed of 30 mm/min.

12）如上述11）的成形容器用積層體，其中密封層係由聚烯烴樹脂的單層膜或多層膜所構成，密封層的厚度：tC為0.06至0.4mm。12) The laminate for molded containers according to 11) above, wherein the sealing layer is composed of a polyolefin resin single-layer film or multi-layer film, and the thickness of the sealing layer: tC is 0.06 to 0.4 mm.

13）如上述11）或12）的成形容器用積層體，其中阻隔層的厚度：tB為0.06至0.18mm。13) The laminate for shaped containers according to 11) or 12) above, wherein the thickness of the barrier layer: tB is 0.06 to 0.18 mm.

14）如上述11）至13）中任一項之成形容器用積層體，其中保護層係由聚烯烴樹脂、聚酯樹脂、或聚醯胺樹脂的單層膜或多層膜所構成，保護層的厚度：tA為0.03至0.2mm。14) The laminate for molded containers according to any one of the above 11) to 13), wherein the protective layer is composed of a single-layer film or a multi-layer film of polyolefin resin, polyester resin, or polyamide resin, and the protective layer Thickness: tA is 0.03 to 0.2mm.

15）一種成形容器，其係開口周緣具有凸緣部之杯狀成形容器，其係以密封層為成形容器之內側的方式將如上述11）至14）中任一項之成形容器用積層體成形為杯狀。15) A molded container, which is a cup-shaped molded container with a flange on the periphery of the opening, and is a laminate for molded containers according to any one of the above 11) to 14) in such a manner that the sealing layer is inside the molded container Shape into a cup shape.

16）一種包裝體，其係將蓋材的底面周緣部熱熔接於填充有內容物的如上述15）之成形容器的凸緣部頂面而成。16) A package formed by thermally welding the bottom peripheral edge of the cover material to the top surface of the flange of the molded container filled with contents as described in 15) above.

17）如上述16）的包裝體，其破裂時最大壓力為40kPa以上。 另外，本發明的第二態樣中，「破裂時最大壓力」，係依據JIS Z0238:1998所規定的「容器的破裂強度試驗方法」，以125℃、20分鐘的條件對於包裝體進行蒸煮處理後，在其蓋材的表面上貼附厚度1mm的橡膠片，從橡膠片的上方刺入空氣針，將壓縮空氣以1.0±0.2公升/min的量送入包裝體內，在包裝體破裂時的最大壓力（容器內壓力）。17) In the case of the above-mentioned 16), the maximum pressure at the time of rupture is 40 kPa or more. In addition, in the second aspect of the present invention, the "maximum pressure at the time of bursting" is based on the "test method for bursting strength of containers" stipulated in JIS Z0238:1998, and the package is subjected to retort treatment at 125°C for 20 minutes. Finally, attach a rubber sheet with a thickness of 1mm on the surface of the cover material, pierce the air needle from above the rubber sheet, and send compressed air into the package at a rate of 1.0±0.2 liters/min. Maximum pressure (pressure inside the container).

本發明的第三態樣，為了達成上述第一及第二目的，而以下述態樣所構成。A third aspect of the present invention is constituted in the following aspects in order to achieve the above-mentioned first and second objects.

21）一種成形容器用積層體，用作在開口周緣具有凸緣部之杯狀成形容器的材料，其中， 從外側依序具有由合成樹脂所構成的保護層、由鋁箔所構成的阻隔層、及由熱熔接性樹脂所構成的密封層； 當保護層的拉伸降伏強度：σA（N/mm²）； 保護層的厚度：tA（mm）； 阻隔層的拉伸強度：σB（N/mm²）； 阻隔層的厚度：tB（mm）； 密封層的拉伸降伏強度：σC（N/mm²）； 密封層的厚度：tC（mm）時，16≦σA×tA+σB×tB+σC×tC≦25，且0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95。 另外，本發明的第三態樣中，「保護層的拉伸降伏強度」「密封層的拉伸降伏強度」係指在縱向（MD）、橫向（TD）及45°方向上，依據JIS　K7127：1999（塑膠-拉伸特性的試驗方法），以試片寬度10mm、標點間距離50mm、拉伸速度100mm/分鐘的條件對於構成保護層之合成樹脂或構成密封層的熱塑性樹脂測量所得到的拉伸降伏強度之相加平均值。 又，「阻隔層的拉伸強度」係指在縱向（MD=壓延方向）、橫向（TD=與壓延方向垂直之方向）及45°方向上，以試片的寬度10mm、標點間距離100mm、拉伸速度30mm/分鐘的條件對於構成阻隔層的鋁箔測量所得到的拉伸強度之相加平均值。21) A laminate for molded containers used as a material for a cup-shaped molded container having a flange at the periphery of the opening, wherein a protective layer made of synthetic resin, a barrier layer made of aluminum foil, and And the sealing layer made of heat-melt resin; When the tensile yield strength of the protective layer: σA (N/mm² ); The thickness of the protective layer: tA (mm); The tensile strength of the barrier layer: σB (N/mm 2 ); mm² ); Thickness of barrier layer: tB (mm); Tensile yield strength of sealing layer: σC (N/mm² ); Thickness of sealing layer: tC (mm), 16≦σA×tA+σB×tB +σC×tC≦25, and 0.1≦(σA×tA+σC×tC)/(σB×tB)≦0.95. In addition, in the third aspect of the present invention, "the tensile yield strength of the protective layer" and "the tensile yield strength of the sealing layer" refer to the longitudinal (MD), transverse (TD) and 45° directions according to JIS K7127 : 1999 (Plastic-Test method for tensile properties), obtained by measuring the synthetic resin constituting the protective layer or the thermoplastic resin constituting the sealing layer under the conditions of a test piece width of 10 mm, a distance between punctuation marks of 50 mm, and a tensile speed of 100 mm/min. The summed average value of tensile yield strength. In addition, "tensile strength of the barrier layer" refers to the longitudinal direction (MD=calendering direction), transverse direction (TD=direction perpendicular to the calendering direction) and 45° direction, when the width of the test piece is 10mm, the distance between punctuation points is 100mm, The average value of the tensile strength measured for the aluminum foil constituting the barrier layer under the condition of a tensile speed of 30 mm/min.

22）如上述21）的成形容器用積層體，其中密封層係由聚烯烴樹脂的單層膜或多層膜所構成，密封層的厚度：tC為0.06至0.4mm。22) The laminate for molded containers according to 21) above, wherein the sealing layer is composed of a single-layer film or a multi-layer film of polyolefin resin, and the thickness of the sealing layer: tC is 0.06 to 0.4 mm.

23）如上述21）或22）的成形容器用積層體，其中阻隔層的厚度：tB為0.06至0.18mm。23) The laminate for shaped containers according to 21) or 22) above, wherein the thickness of the barrier layer: tB is 0.06 to 0.18 mm.

24）如上述21）至23）中任一項之成形容器用積層體，其中保護層係由聚烯烴樹脂、聚酯樹脂、或聚醯胺樹脂的單層膜或多層膜所構成，保護層的厚度：tA為0.03至0.2mm。24) The laminate for molded containers according to any one of the above 21) to 23), wherein the protective layer is composed of a single-layer film or a multi-layer film of polyolefin resin, polyester resin, or polyamide resin, and the protective layer Thickness: tA is 0.03 to 0.2mm.

25）一種成形容器，其係在開口周緣具有凸緣部之杯狀成形容器，其係以密封層為成形容器之內側的方式將如上述21）至24）中任一項之成形容器用積層體成形為杯狀。25) A shaped container, which is a cup-shaped shaped container having a flange at the periphery of the opening, and which is formed by laminating any one of the above-mentioned 21) to 24) in such a manner that the sealing layer is the inner side of the shaped container. The body is cup-shaped.

26）如上述25）的成形容器，其凸緣部的寬度為3至20mm。26) The molded container as described in 25) above, wherein the flange portion has a width of 3 to 20 mm.

27）一種包裝體，其係將蓋材的底面周緣部熱熔接於填充有內容物的如上述25）或26）之成形容器的凸緣部頂面而成。27) A package formed by thermally welding the bottom peripheral edge of the cover material to the top surface of the flange of the shaped container filled with contents as described in 25) or 26) above.

28）如上述27）的包裝體，其中由成形容器的凸緣部頂面與蓋材的底面周緣部熱熔接而成的密封部之寬度為2至18mm。28) The package according to the above 27), wherein the width of the sealing portion formed by thermally welding the top surface of the flange portion of the molded container and the peripheral portion of the bottom surface of the lid material is 2 to 18 mm.

29）如上述27）或28）的包裝體，其破裂時最大壓力為40kPa以上。 另外，本發明的第三態樣中，「破裂時最大壓力」係依據JIS Z0238:1998所規定的「容器的破裂強度試驗方法」，以125℃、20分鐘的條件對於包裝體進行蒸煮處理後，在該蓋材表面上貼附厚度1mm的橡膠片，從橡膠片的上方刺入空氣針，將壓縮空氣以1.0±0.2公升/min的量送入包裝體內，在包裝體破裂時的最大壓力（容器內壓力）。 ［發明之效果］29) The package according to the above 27) or 28), wherein the maximum pressure at the time of rupture is 40 kPa or more. In addition, in the third aspect of the present invention, the "maximum pressure at the time of rupture" refers to the "test method for bursting strength of containers" stipulated in JIS Z0238:1998, after retorting the package body at 125°C for 20 minutes , attach a rubber sheet with a thickness of 1mm on the surface of the cover material, pierce the air needle from above the rubber sheet, and send compressed air into the package at a rate of 1.0±0.2 liters/min. The maximum pressure when the package breaks (pressure inside the container). [Effect of the invention]

關於本發明的第一態樣，本案發明人變更各種保護層、阻隔層、密封層的構成而嘗試製作大量的成形容器用積層體，並針對使用此等而成形的成形容器驗證其在加熱殺菌後的密封性及開封性，結果發現構成保護層及密封層之材料的拉伸降伏強度（σA、σC）及厚度（tA、tC）以及構成阻隔層之材料的拉伸強度（σB）及厚度（tB）滿足既定關係時，可得到預期的效果。 亦即，根據上述1）的成形容器用積層體，因為16≦σA×tA+σB×tB+σC×tC≦25，使用該積層體成形而成的成形容器，例如在煮沸殺菌後或蒸煮殺菌後仍可得到優良的密封性，而且在開封時凸緣部不會被拉起而開封性良好。Regarding the first aspect of the present invention, the inventors of the present application attempted to produce a large number of laminates for molded containers by changing the configurations of various protective layers, barrier layers, and sealing layers, and verified the heat sterilization performance of molded containers formed using these. The results showed that the tensile yield strength (σA, σC) and thickness (tA, tC) of the material constituting the protective layer and sealing layer and the tensile strength (σB) and thickness of the material constituting the barrier layer (tB) When the established relationship is satisfied, the expected effect can be obtained. That is, according to the above-mentioned laminated body for molded containers, since 16≦σA×tA+σB×tB+σC×tC≦25, molded containers molded using this laminate, for example, after boiling sterilization or retort sterilization Excellent airtightness can be obtained even after that, and the flange portion will not be pulled up during unsealing, so the unsealing property is good.

根據上述2）的成形容器用積層體，因為密封層由聚烯烴樹脂所構成，因此追隨性良好，尤其容易進行抽拉成形。又，根據該積層體，使用其成形而成的成形容器之內面側對於內容物的耐性良好，可保護阻隔層不會因為內容物而被腐蝕。 又，根據該積層體，因為密封層的厚度：tC為0.06至0.4mm，因此可避免下述問題。亦即，若tC小於0.06mm，則成形容器的密封性不穩定，有損密封層的功能。另一方面，若tC超過0.4mm，則構成密封層的熱熔接性樹脂變厚，相較於阻隔層之鋁箔的剛性，密封層的熱熔接樹脂的回彈（spring back）變大，會在成形容器的凸緣部產生波折等變形，可能對於開封性有不良的影響。According to the laminate for molded containers in the above 2), since the sealant layer is made of polyolefin resin, the followability is good, and drawing molding is particularly easy. Also, according to this laminate, the inner surface of a molded container molded using it has good resistance to the contents, and the barrier layer can be protected from corrosion due to the contents. Also, according to this laminate, since the thickness of the sealing layer: tC is 0.06 to 0.4 mm, the following problems can be avoided. That is, if tC is less than 0.06 mm, the airtightness of the molded container is unstable and the function of the sealing layer is impaired. On the other hand, if tC exceeds 0.4 mm, the heat-sealable resin constituting the sealing layer becomes thicker, and compared with the rigidity of the aluminum foil of the barrier layer, the spring back of the heat-sealable resin of the sealing layer becomes larger, and the Deformation such as waviness occurs in the flange portion of the molded container, which may adversely affect the unsealing performance.

根據上述3）的成形容器用積層體，因為阻隔層的厚度：tB為0.06至0.18mm，故可避免下述問題。亦即，tB小於0.06mm時，成形容器的凸緣部的剛性降低，在開封時凸緣部容易被拉起，有開封性降低的疑慮。另一方面，若tB超過0.18mm，雖在開封時凸緣部不易被拉起，但阻隔層的厚度超出需求而有損成形性。According to the laminate for molded containers of the above 3), since the thickness of the barrier layer: tB is 0.06 to 0.18 mm, the following problems can be avoided. That is, when tB is less than 0.06 mm, the rigidity of the flange portion of the molded container decreases, and the flange portion is likely to be pulled up at the time of unsealing, which may lower the unsealing property. On the other hand, if tB exceeds 0.18 mm, the flange portion will not be easily pulled up at the time of unsealing, but the thickness of the barrier layer will exceed the requirement and the formability will be impaired.

根據上述4）的成形容器用積層體，因為保護層係由聚烯烴樹脂、聚酯樹脂或聚醯胺樹脂所構成，故追隨性良好，成形性、尤其是抽拉成形性良好。 又，根據該積層體，因為保護層的厚度：tA為0.03至0.2mm，故可避免下述問題。亦即，tA小於0.03mm時，蓋材對於成形容器之凸緣部進行熱熔接時的緩衝性降低，有密封性不穩定的疑慮。另一方面，若tA超過0.2mm，雖在開封時凸緣部不易被拉起，但阻隔層的厚度超出需求而有損成形性。According to the above 4) laminate for a molded container, since the protective layer is made of polyolefin resin, polyester resin or polyamide resin, it has good followability and good formability, especially drawability. Also, according to this laminate, since the thickness of the protective layer: tA is 0.03 to 0.2 mm, the following problems can be avoided. That is, when tA is less than 0.03 mm, the cushioning performance of the lid material when heat-welded to the flange of the molded container decreases, and the sealing performance may be unstable. On the other hand, if tA exceeds 0.2 mm, the flange portion will not be easily pulled up at the time of unsealing, but the thickness of the barrier layer will exceed the requirement and the formability will be impaired.

根據上述5）的成形容器，例如在煮沸殺菌後或蒸煮殺菌後仍可得到優良的密封性，而且開封時凸緣部不會被拉起，開封性良好。According to the molded container of the above 5), for example, excellent airtightness can be obtained even after boiling sterilization or retort sterilization, and the flange portion is not pulled up at the time of opening, so the opening property is good.

根據上述6）的成形容器，因為凸緣部的寬度為3至20mm，故可避免下述問題。亦即，凸緣部的寬度小於3mm時，無法得到充分的密封寬度而密封性不穩定。另一方面，若凸緣部的寬度超過20mm，則開封時凸緣部容易被拉起，開封性降低。According to the molded container of the above 6), since the width of the flange portion is 3 to 20 mm, the following problems can be avoided. That is, when the width of the flange portion is less than 3 mm, a sufficient sealing width cannot be obtained and the sealing performance is unstable. On the other hand, when the width of the flange part exceeds 20 mm, the flange part is easily pulled up at the time of unsealing, and the unsealing property decreases.

根據上述7）的包裝體，例如在煮沸殺菌後或蒸煮殺菌後仍可得到優良的密封性而可長期保存內容物，而且開封時凸緣部不會被拉起，開封性良好。According to the package of the above 7), for example, after boiling sterilization or retort sterilization, excellent airtightness can be obtained, and the contents can be stored for a long time, and the flange part will not be pulled up when opening, and the opening performance is good.

根據上述8）的包裝體，因為密封部的寬度為2至18mm，可避免以下問題。亦即，密封部的寬度小於2mm時，有無法確保密封性的疑慮。另一方面，若密封部的寬度超過18mm，則密封性雖無問題，但開封時凸緣部容易被拉起，開封性降低。According to the package body of 8) above, since the width of the sealing portion is 2 to 18 mm, the following problems can be avoided. That is, when the width of the sealing portion is less than 2 mm, there is a possibility that the sealing property cannot be ensured. On the other hand, when the width of the sealing portion exceeds 18 mm, there is no problem with the sealing performance, but the flange portion is easily pulled up when the seal is opened, and the unsealing property decreases.

根據上述9）的包裝體，成形容器的凸緣部與蓋材的密封部之封合強度高，密封性優良，因此可確實地長期保存內容物。According to the package of the above-mentioned 9), the sealing strength between the flange portion of the molded container and the sealing portion of the lid material is high, and the airtightness is excellent, so the contents can be reliably stored for a long period of time.

關於本發明的第二態樣，本案發明人對於保護層、阻隔層、密封層的構成進行各種變更而嘗試製作大量的成形容器用積層體，針對使用此等成形而成的成形容器驗證凸緣部的變形性及密封性，結果發現構成保護層及密封層之材料的拉伸降伏強度（σA、σC）及厚度（tA、tC）以及構成阻隔層之材料的拉伸強度（σB）及厚度（tB）滿足既定關係時，可得到預期的效果。 亦即，根據上述11）的成形容器用積層體，因為0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95，故使用該積層體成形而成的成形容器，例如在成形後或蒸煮殺菌後抑制了凸緣部產生波折等變形，凸緣部變得平滑而可確保優良的密封性。Regarding the second aspect of the present invention, the inventors of the present application made various changes to the configurations of the protective layer, the barrier layer, and the sealing layer to produce a large number of laminates for molded containers, and verified flanges for molded containers molded using these. Deformability and sealing performance of the part, the results found that the tensile yield strength (σA, σC) and thickness (tA, tC) of the material constituting the protective layer and sealing layer and the tensile strength (σB) and thickness of the material constituting the barrier layer (tB) When the established relationship is satisfied, the expected effect can be obtained. That is, the laminated body for shaped containers according to the above 11) is 0.1≦(σA×tA+σC×tC)/(σB×tB)≦0.95, so a shaped container molded using this laminated body, for example, Deformation such as waviness in the flange portion is suppressed after retort or retort sterilization, and the flange portion becomes smooth to ensure excellent sealing performance.

根據上述12）的成形容器用積層體，因為密封層由聚烯烴樹脂所構成，故追隨性良好，尤其容易進行抽拉成形。又，根據此積層體，使用其成形而成的成形容器之內面側對於內容物的耐性變得良好，可保護阻隔層不會因為內容物而被腐蝕。 又，根據該積層體，因為密封層的厚度：tC為0.06至0.4mm，故可避免下述問題。亦即，若tC小於0.06mm，則成形容器的密封性不穩定，有損密封層的功能。另一方面，若tC超過0.4mm，則構成密封層的熱熔接性樹脂變厚，相較於阻隔層的鋁箔的剛性，密封層的熱熔接樹脂之回彈變大，因此有在成形容器的凸緣部產生波折等變形的疑慮。According to the laminate for molded containers in the above 12), since the sealant layer is made of polyolefin resin, the followability is good, and drawing molding is particularly easy. Also, according to this laminate, the inner surface of a molded container molded using it has good resistance to the contents, and the barrier layer can be protected from corrosion due to the contents. Also, according to this laminate, since the thickness of the sealing layer: tC is 0.06 to 0.4 mm, the following problems can be avoided. That is, if tC is less than 0.06 mm, the airtightness of the molded container is unstable and the function of the sealing layer is impaired. On the other hand, if tC exceeds 0.4 mm, the heat-sealable resin constituting the sealing layer becomes thicker, and compared with the rigidity of the aluminum foil of the barrier layer, the rebound of the heat-sealable resin of the sealing layer becomes larger, so there is a problem in the shape of the container. There is a possibility of deformation such as waviness in the flange part.

根據上述13）的成形容器用積層體，因為阻隔層的厚度：tB為0.06至0.18mm，故可避免下述問題。亦即，tB小於0.06mm時，成形容器的凸緣部的剛性降低而容易發生變形。另一方面，若tB超過0.18mm，則成形容器的剛性雖增加，但阻隔層的厚度超出需求而有損成形性。According to the laminate for molded containers in the above 13), since the thickness of the barrier layer: tB is 0.06 to 0.18 mm, the following problems can be avoided. That is, when tB is less than 0.06 mm, the rigidity of the flange portion of the molded container decreases and deformation tends to occur. On the other hand, if tB exceeds 0.18 mm, the rigidity of the molded container increases, but the thickness of the barrier layer exceeds the requirement and the moldability is impaired.

根據上述14）的成形容器用積層體，因為保護層係由聚烯烴樹脂、聚酯樹脂或聚醯胺樹脂所構成，故追隨性良好，且成形性、尤其是抽拉成形性良好。 又，根據該積層體，因為保護層的厚度：tA為0.03至0.2mm，故可避免下述問題。亦即，tA小於0.03mm時，蓋材對於成形容器之凸緣部進行熱熔接時的緩衝性降低，有密封性不穩定的疑慮。另一方面，若tA超過0.2mm，則成形容器的密封性雖無問題，但有損成形性。According to the above 14) laminate for molded containers, since the protective layer is made of polyolefin resin, polyester resin or polyamide resin, the followability is good, and the formability, especially the drawing formability is good. Also, according to this laminate, since the thickness of the protective layer: tA is 0.03 to 0.2 mm, the following problems can be avoided. That is, when tA is less than 0.03 mm, the cushioning performance of the lid material when heat-welded to the flange of the molded container decreases, and the sealing performance may be unstable. On the other hand, if tA exceeds 0.2 mm, there is no problem with the airtightness of the molded container, but the formability is impaired.

根據上述15）的成形容器，例如在成形後或蒸煮殺菌後中，凸緣部不易產生波折等變形，故凸緣部變得平滑而與蓋材的密封性良好，可得到優良的密封性。According to the molded container of the above 15), for example, after molding or after retort sterilization, deformation such as waviness is less likely to occur in the flange portion, so the flange portion becomes smooth and the sealing performance with the lid material is good, and excellent sealing performance can be obtained.

根據上述16）的包裝體，例如在成形後或蒸煮殺菌後，成形容器的凸緣部不易產生波折等，故凸緣部變得平滑而與蓋材的密封性良好，可得到優良的密封性，而能夠長期保存內容物。According to the package in the above 16), for example, after molding or retort sterilization, the flange portion of the formed container is less prone to waviness, etc., so the flange portion becomes smooth and the sealing performance with the lid material is good, and excellent sealing performance can be obtained. , and can preserve the contents for a long time.

根據上述17）的包裝體，成形容器之凸緣部與蓋材之密封部的封合強度高，密封性優良，故可確實地長期保存內容物。According to the package in 17) above, the sealing strength between the flange portion of the molded container and the sealing portion of the lid material is high, and the airtightness is excellent, so that the contents can be reliably stored for a long period of time.

根據本發明之第三態樣的上述21）至29）之成形容器用積層體、成形容器及包裝體，與該第一態樣的上述1）至9）之成形容器用積層體、成形容器及包裝體的上述效果、該第二態樣的上述11）至17）之成形容器用積層體、成形容器及包裝體的上述效果發揮加乘效果。The laminate for molded containers, the molded container, and the package according to the above-mentioned 21) to 29) of the third aspect of the present invention, and the laminate for molded containers and the molded container of the above-mentioned 1) to 9) of the first aspect The above-mentioned effects of the package and the above-mentioned effects of the laminate for molded containers, molded containers, and packages of the second aspect of the above-mentioned 11) to 17) exhibit a synergistic effect.

參照圖1至圖6說明本發明的實施型態。 ＜成形容器用積層體＞Embodiments of the present invention will be described with reference to FIGS. 1 to 6 . ＜Laminates for molded containers＞

圖1係顯示本發明之成形容器用積層體（1）的一態樣。 圖示的積層體（1），從外側（成形容器（2）的外表面之一側，圖中為上側）依序具有由合成樹脂所構成的保護層（11）、接著劑層（12）、由鋁箔所構成的阻隔層（13）、接著劑層（14）及由熱熔接性樹脂所構成的密封層（15）。其中，2個接著劑層（12）（14）為任意，可省略其一者或是兩者。 ＜保護層＞Fig. 1 shows an aspect of the laminate (1) for molded containers of the present invention. The illustrated laminate (1) has a protective layer (11) made of synthetic resin and an adhesive layer (12) sequentially from the outside (one of the outer surfaces of the molded container (2), the upper side in the figure). , a barrier layer (13) made of aluminum foil, an adhesive layer (14) and a sealing layer (15) made of heat-melt resin. Among them, the two adhesive layers ( 12 ) ( 14 ) are optional, and one or both of them can be omitted. ＜Protective layer＞

保護層（11）係構成成形容器（2）之最外表面的層，其係由各種習知的合成樹脂構成。保護層（11）除了圖示的單層以外，亦可為2層以上的多層。 作為保護層（11），若考量積層體（1）的成形性（特別是抽拉成形性），較佳係以追隨性良好的聚烯烴、聚酯、聚醯胺之單層或多層膜構成。作為聚烯烴，可例示：均聚丙烯（hPP）、乙烯-丙烯無規共聚物（rPP）、乙烯-丙烯嵌段共聚物（bPP）、聚乙烯（PE）。作為聚乙烯，可列舉例如：低密度聚乙烯（LDPE）、直鏈狀低密度聚乙烯（LLDPE）、高密度聚乙烯（HDPE）等。作為聚酯，可例示：聚對苯二甲酸乙二酯（PET）。又，作為聚醯胺，可例示：延伸尼龍（ONy）。 作為單層的保護層（11），例如可例示：由均聚丙烯（hPP）所構成的無延伸聚丙烯（CPP）。 又，作為多層的保護層（11），若考量成形時的保護層（11）之追隨性，較佳係依序將乙烯-丙烯無規共聚物（rPP）、乙烯-丙烯嵌段共聚物（bPP）及乙烯-丙烯無規共聚物（rPP）積層而成的3層無延伸聚丙烯（CPP）。多層的保護層（15），例如可以乾式疊層法、熔融擠製疊層法、熱疊層法、凹版塗布法等各種習知方法形成。 保護層（11）的拉伸降伏強度：σA，若考量耐傷性、成形性，則較佳為5至50N/mm²，更佳為15至40N/mm²。 保護層（11）的厚度：tA，若考量密封性及成形性，則較佳為0.03至0.2mm，更佳為0.03至0.08mm。 ＜阻隔層＞The protective layer (11) is a layer constituting the outermost surface of the molded container (2), and is made of various known synthetic resins. The protective layer ( 11 ) may be a multilayer of two or more layers other than the illustrated single layer. As the protective layer (11), if considering the formability (especially drawing formability) of the laminate (1), it is preferably composed of a single-layer or multi-layer film of polyolefin, polyester, and polyamide with good followability . Examples of the polyolefin include homopolypropylene (hPP), ethylene-propylene random copolymer (rPP), ethylene-propylene block copolymer (bPP), and polyethylene (PE). Examples of polyethylene include low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE), and the like. As polyester, polyethylene terephthalate (PET) can be illustrated. Also, as polyamide, elongated nylon (ONy) can be exemplified. As the single-layer protective layer ( 11 ), for example, non-stretched polypropylene (CPP) composed of homopolypropylene (hPP) can be exemplified. Also, as the multi-layer protective layer (11), if the followability of the protective layer (11) during molding is considered, it is preferable to sequentially combine ethylene-propylene random copolymer (rPP), ethylene-propylene block copolymer ( bPP) and ethylene-propylene random copolymer (rPP) laminated three layers of non-extended polypropylene (CPP). The multilayer protective layer (15) can be formed by various known methods such as dry lamination, melt extrusion lamination, thermal lamination, and gravure coating. The tensile yield strength of the protective layer (11): σA, in consideration of scratch resistance and formability, is preferably 5 to 50 N/mm² , more preferably 15 to 40 N/mm² . The thickness of the protective layer ( 11 ): tA, in consideration of sealing performance and formability, is preferably 0.03 to 0.2 mm, more preferably 0.03 to 0.08 mm. ＜Barrier layer＞

阻隔層（13）係用以保護包裝體（5）的內容物（4）不受氣體、水蒸氣及光等影響的層，其係以鋁箔構成。作為鋁箔，可列舉：純鋁箔或鋁合金箔，較佳為軟質材（O材）。尤其是若考量積層體（1）的成形性，作為阻隔層（13），宜為選自（i）含有Fe:1.2至1.7質量%或含有Fe:0.7至1.3質量%、Si:0.05至0.3質量%且剩餘部分由Al及不可避免之雜質所構成的鋁合金箔、（ii）Al純度99.00質量%以上的純鋁箔、（iii）由含有Mn:1.0至1.5質量%且含有Cu:0.05至0.2質量%或Mg:0.8至1.3質量%的鋁合金箔所構成之群組中的至少一種鋁箔，更宜為上述（i）的鋁合金箔。具體而言，可例示JIS H4160:1994規定的A1085H、A1070H、A1050H、A1N30H、A1100H、A3003H、A3004H、A8021H、A8079H（皆為O材），特別宜為A8021H、A1N30H、A3003H。 又，可在鋁箔的外表面及/或內面形成由既定化學處理液所構成的基底層（省略圖示）。作為化學處理液，可列舉例如：包含磷酸、鉻系化合物、氟系化合物及/或黏結劑樹脂的水-醇溶液。作為鉻系化合物，可列舉鉻酸及/或鉻（III）；作為氟系化合物，可列舉氟化物的金屬鹽及/或氟化物的非金屬鹽；作為黏結劑樹脂，可列舉選自由丙烯酸系樹脂、幾丁聚醣衍生物樹脂及酚系樹脂所構成之群組中的至少一種樹脂等。化學處理液的使用量並無特別限定，一般係鋁箔之單面的鉻附著量在0.1至50mg/m²（宜為2至20mg/m²）的範圍即可。鋁箔的基底層亦可藉由矽酸鹽處理或鋯系化學處理等形成。 阻隔層（13）的拉伸強度（最大拉伸強度）：σB，若考量成形時的加工性與密封層（15）的回彈，則較佳為60至130N/mm²，更佳為75至115N/mm²。 阻隔層（13）的厚度：tB，若考量成形容器（2）（尤其是凸緣部（23））的剛性及成形性，則較佳為0.06至0.18mm，更佳為0.08至0.15mm。 ＜密封層＞The barrier layer (13) is a layer used to protect the contents (4) of the package (5) from gas, water vapor, light, etc., and is made of aluminum foil. Examples of the aluminum foil include pure aluminum foil and aluminum alloy foil, preferably a soft material (O material). In particular, if the formability of the laminate (1) is considered, the barrier layer (13) is preferably selected from (i) containing Fe: 1.2 to 1.7% by mass or containing Fe: 0.7 to 1.3% by mass, and Si: 0.05 to 0.3% by mass. % by mass and the remainder is composed of Al and unavoidable impurities, (ii) pure aluminum foil with an Al purity of 99.00% by mass or more, (iii) containing Mn: 1.0 to 1.5% by mass and containing Cu: 0.05 to At least one aluminum foil in the group consisting of 0.2 mass % or Mg: 0.8 to 1.3 mass % aluminum alloy foil is more preferably the aluminum alloy foil of (i) above. Specifically, A1085H, A1070H, A1050H, A1N30H, A1100H, A3003H, A3004H, A8021H, and A8079H (all are O materials) specified in JIS H4160:1994 can be exemplified, and A8021H, A1N30H, and A3003H are particularly preferable. In addition, a base layer (illustration omitted) made of a predetermined chemical treatment liquid may be formed on the outer surface and/or the inner surface of the aluminum foil. As a chemical processing liquid, the water-alcoholic solution containing phosphoric acid, a chromium compound, a fluorine compound, and/or binder resin is mentioned, for example. Chromium-based compounds include chromic acid and/or chromium (III); fluorine-based compounds include metal salts of fluorides and/or non-metallic salts of fluorides; resin, at least one resin selected from the group consisting of chitosan derivative resin and phenolic resin, and the like. The amount of chemical treatment liquid used is not particularly limited. Generally, the amount of chromium attached to one side of the aluminum foil is in the range of 0.1 to 50 mg/m² (preferably 2 to 20 mg/m² ). The base layer of the aluminum foil can also be formed by silicate treatment or zirconium-based chemical treatment. The tensile strength (maximum tensile strength) of the barrier layer (13): σB, considering the processability during forming and the resilience of the sealing layer (15), it is preferably 60 to 130 N/mm² , more preferably 75 to 115N/mm² . The thickness of the barrier layer (13): tB, considering the rigidity and formability of the shaped container (2) (especially the flange portion (23)), it is preferably 0.06 to 0.18 mm, more preferably 0.08 to 0.15 mm. ＜Sealing layer＞

密封層（15）係形成成形容器（2）之最內面的層，又其亦為構成成形容器（2）之凸緣部（23）頂面，亦即與蓋材（4）之密封面的層，其可由各種習知的熱熔接性樹脂構成。密封層（15）除了圖示的單層以外，亦可為2層以上的多層。 作為密封層（15），若考量積層體（1）的成形性（特別是抽拉成形性），較佳係以追隨性良好的聚烯烴的單層或多層膜構成。作為聚烯烴，可例示：均聚丙烯（hPP）、乙烯-丙烯無規共聚物（rPP）、乙烯-丙烯嵌段共聚物（bPP）、聚乙烯（PE）。又，作為聚乙烯，可例示：低密度聚乙烯（LDPE）、直鏈狀低密度聚乙烯（LLDPE）、高密度聚乙烯（HDPE）。 作為單層的密封層（15），可列舉例如：由均聚丙烯（hPP）所構成的無延伸聚丙烯（CPP）。 作為多層的密封層（15），較佳為以任意順序包含至少一個聚乙烯層與至少一個聚丙烯層的態樣。作為此態樣，可列舉例如：聚乙烯層、聚丙烯層及聚乙烯層依序積層而成者，根據此態樣，藉由與具有由聚乙烯層所構成之密封層的蓋材（4）組合，可得到易開封性優良的包裝體（5）。多層的密封層（15），例如可以乾式疊層法、熔融擠製疊層法、熱疊層法、凹版塗布法等各種習知的方法形成。 密封層（15）的拉伸降伏強度：σC，若考量耐傷性、成形性，則較佳為5至50N/mm²，更佳為15至40N/mm²。 密封層（15）的厚度：tC，若考量密封性及成形性及凸緣部（23）的波折等的減少，則較佳為0.06至0.4mm，更佳為0.15至0.3mm。 ＜接著劑層＞The sealing layer (15) is the innermost layer that forms the shaped container (2), and it is also the top surface of the flange (23) that forms the shaped container (2), that is, the sealing surface with the lid (4) The layer can be made of various known heat-sealable resins. The sealing layer ( 15 ) may be a multilayer of two or more layers other than the single layer shown in the figure. The sealing layer ( 15 ) is preferably composed of a single-layer or multi-layer polyolefin film with good followability in consideration of the formability (especially draw-formability) of the laminate ( 1 ). Examples of the polyolefin include homopolypropylene (hPP), ethylene-propylene random copolymer (rPP), ethylene-propylene block copolymer (bPP), and polyethylene (PE). Moreover, examples of polyethylene include low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and high-density polyethylene (HDPE). Examples of the single-layer sealing layer ( 15 ) include non-stretched polypropylene (CPP) made of homopolypropylene (hPP). The multilayer sealing layer ( 15 ) preferably includes at least one polyethylene layer and at least one polypropylene layer in any order. As this aspect, for example, a polyethylene layer, a polypropylene layer, and a polyethylene layer are sequentially laminated. According to this aspect, by combining with a cover material (4 ) combination, a package (5) with excellent easy-openability can be obtained. The multi-layer sealing layer (15) can be formed by various known methods such as dry lamination, melt extrusion lamination, thermal lamination, and gravure coating, for example. The tensile yield strength of the sealing layer (15): σC, in consideration of scratch resistance and formability, is preferably 5 to 50 N/mm² , more preferably 15 to 40 N/mm² . The thickness of the sealing layer ( 15 ): tC is preferably 0.06 to 0.4 mm, more preferably 0.15 to 0.3 mm, in consideration of sealing performance, formability, and reduction in waviness of the flange portion ( 23 ). ＜Adhesive layer＞

接著劑層（12）（14）為任意，但藉由使此等介在阻隔層（13）與保護層（11）或密封層（15）與之間，可防止在積層體（1）的成形加工時會發生的分層。作為構成接著劑層（12）（14）的接著劑，可列舉例如：氯化乙烯-乙酸乙烯酯共聚物系接著劑、聚酯系接著劑、環氧系接著劑、聚烯烴系接著劑、聚胺基甲酸酯系接著劑等，較佳為聚胺基甲酸酯樹脂系接著劑。作為雙液硬化型聚胺基甲酸酯樹脂系接著劑，特別宜為雙液硬化型聚醚胺基甲酸酯樹脂系接著劑及/或雙液硬化型聚酯胺基甲酸酯樹脂系接著劑。接著劑層（12）（14）的厚度並無特別限定，若考量此等的分層預防效果等，則通常為0.0005至0.01mm，較佳為0.002至0.005mm。 ＜印刷油墨層＞Adhesive layers (12) (14) are optional, but by interposing them between barrier layer (13) and protective layer (11) or sealing layer (15) and Delamination that occurs during processing. Examples of the adhesive constituting the adhesive layer (12) (14) include: vinyl chloride-vinyl acetate copolymer-based adhesives, polyester-based adhesives, epoxy-based adhesives, polyolefin-based adhesives, The polyurethane-based adhesive or the like is preferably a polyurethane resin-based adhesive. As a two-component curing polyurethane resin adhesive, a two-component curing polyether urethane resin adhesive and/or a two-component curing polyester urethane resin is particularly suitable. Adhesive. The thickness of the adhesive layer ( 12 ) ( 14 ) is not particularly limited, but in consideration of such delamination prevention effects, etc., it is usually 0.0005 to 0.01 mm, preferably 0.002 to 0.005 mm. ＜Printing ink layer＞

另外，積層體（1）中，亦可使印刷油墨層（省略圖示）介在密封層（15）與接著劑層（14）或阻隔層（13）之間。印刷油墨係由顏料、各種溶劑及黏結劑樹脂構成，作為黏結劑樹脂，可列舉例如：蟲膠樹脂、硝基纖維素、乙酸纖維素、環氧樹脂、聚胺基甲酸酯、氯化聚烯烴、聚醯胺、丙烯酸樹脂、氯化乙烯-乙酸乙烯酯共聚物、聚酯等。又，使用大豆油等植物油作為溶劑對於環境友善。印刷油墨層可為不連續層，亦可為連續層。 ＜成形容器＞In addition, in the laminate ( 1 ), a printing ink layer (not shown) may be interposed between the sealing layer ( 15 ) and the adhesive layer ( 14 ) or the barrier layer ( 13 ). Printing inks are composed of pigments, various solvents, and binder resins. Examples of binder resins include shellac resins, nitrocellulose, cellulose acetate, epoxy resins, polyurethanes, and chlorinated polyesters. Olefin, polyamide, acrylic resin, chlorinated ethylene-vinyl acetate copolymer, polyester, etc. Also, using vegetable oils such as soybean oil as a solvent is environmentally friendly. The printing ink layer can be a discontinuous layer or a continuous layer. ＜Molding container＞

圖2係顯示將上述積層體（1）成形而成的成形容器（2）的一態樣。 圖示的成形容器（2）為杯狀，其具備：俯視為圓形的底壁部（21）；略錐筒狀的周壁部（22），從底壁部（21）的外周緣向上逐漸往外側展開延伸；及圓環狀的凸緣部（23），從周壁部（22）的上端緣（開口周緣）往外延伸。 底壁部（21），在其徑方向中間位置具有環狀階差（211），相較於該環狀階差（211），內側部分稍微高於該外側部分。周壁部（22）在其高度中間位置具有環狀階差（221），相較於該環狀階差（221），上側部分的直徑稍微大於該外側部分。藉由此等的環狀階差（211）（221），成形容器（2）的機械強度及堆疊性提高。其中，環狀階差（211）（221）為任意。 成形容器的形狀不限於圖示的態樣，可適當變更。例如，底壁部在俯視下可為橢圓形或圓角矩形，相同地可使周壁部其橫向剖面為橢圓形或圓角矩形等，凸緣部亦可為橢圓環狀、圓角矩形環狀等。 又，成形容器的尺寸並無特別限定，例如作為圖示之容器形狀的情況，可為開口徑（凸緣部（23）內徑）：50至150mm，底徑（底壁部（21）直徑）：40至140mm，高度：20至100mm。凸緣部（23）的寬度（W1）（參照圖5的（a）及圖6的（a）），若考量密封性及開封性，則較佳為3至20mm，更佳為4至10mm。就凸緣部（23）的寬度而言，原本從密封性的觀點來看其寬度宜大，但若考量減少後述波折之產生的點則寬度宜窄，從兩種性能的平衡來看，更佳為5至8mm。 ＜成形容器的成形方法＞Fig. 2 shows an aspect of a molded container (2) formed by molding the above-mentioned laminate (1). The illustrated forming container (2) is cup-shaped, and it has: a circular bottom wall (21) viewed from above; a slightly conical cylindrical peripheral wall (22), gradually upward from the outer peripheral edge of the bottom wall (21). expanding and extending outward; and an annular flange portion (23) extending outward from the upper edge (periphery of the opening) of the surrounding wall portion (22). The bottom wall part (21) has an annular step difference (211) at the middle position in the radial direction, and compared with the annular step difference (211), the inner part is slightly higher than the outer part. The peripheral wall part (22) has an annular step (221) at the middle position of its height, and compared with the annular step (221), the diameter of the upper part is slightly larger than that of the outer part. With such annular steps (211) (221), the mechanical strength and stackability of the shaped container (2) are improved. Among them, the annular step difference (211) (221) is arbitrary. The shape of the molded container is not limited to the illustrated one, and can be changed as appropriate. For example, the bottom wall can be elliptical or rounded rectangle in plan view, similarly the lateral section of the surrounding wall can be oval or rounded rectangle, etc., and the flange can also be oval ring or rounded rectangular ring wait. Also, the size of the molded container is not particularly limited. For example, in the case of the container shape shown in the figure, the opening diameter (the inner diameter of the flange part (23)): 50 to 150 mm, the bottom diameter (the diameter of the bottom wall part (21) ): 40 to 140mm, height: 20 to 100mm. The width (W1) of the flange portion (23) (see Fig. 5(a) and Fig. 6(a)) is preferably 3 to 20 mm, more preferably 4 to 10 mm, in consideration of sealing performance and unsealing performance . Regarding the width of the flange part (23), it should be larger from the point of view of sealing performance, but it should be narrower in consideration of reducing the occurrence of twists and turns described later. From the perspective of the balance of the two properties, it is more suitable Preferably it is 5 to 8 mm. ＜Molding method of molded container＞

圖3係顯示使用沖壓成形裝置製造上述成形容器（2）的方法之一態樣。 圖示的沖壓成形裝置（6），具有圓柱狀的下方模具（沖頭）（61）、底面具有略圓錐台狀之凹處（62a）的上方模具（壓模）（62）、配置於下方模具（61）周圍的圓環板狀壓料板（blank holder）（63）。壓料板（63）的下方設有彈簧（64），其在成形時提供固定的壓料板載重。另外，沖壓成形裝置，亦可與圖3相反而以沖頭為上方模具、以壓模為下方模具。 成形時，首先準備將上述積層體（1）沖切成既定尺寸之圓形而成的毛坯（10）。 然後，如圖3的（a）所示，將此毛坯（10）配置於沖壓成形裝置（6）的下方模具（61）及上方模具（62）之間，若使上方模具（62）下降，則藉由上方模具（62）底面及壓料板（63）頂面夾住毛坯（10）的外周部。 若在此狀態下使上方模具（62）進一步下降，則如圖3的（b）所示，對於毛坯（10）進行抽拉加工。之後，因應需求對於凸緣部（23）的外周緣部進行修緣加工（省略圖示）。如此可得到圖2所示之杯狀的附凸緣部（23）之成形容器（2）。 另外，成形容器較佳係以上述抽拉成形加工進行成形，此外例如亦可以拉伸成形加工進行成形。 ＜各層的拉伸特性/厚度＞Fig. 3 shows one aspect of the method of manufacturing the above-mentioned shaped container (2) using a press forming device. The stamping forming device (6) shown in the figure has a cylindrical lower die (punch) (61), an upper die (press die) (62) with a slightly truncated conical recess (62a) on the bottom surface, and is arranged below An annular plate-like blank holder (63) around the mold (61). A spring (64) is provided below the pressing plate (63), which provides a fixed pressing plate load during forming. In addition, in the stamping forming device, it is also possible to use the punch as the upper die and the press die as the lower die, contrary to FIG. 3 . When forming, first prepare the blank (10) which is formed by punching the above-mentioned laminate (1) into a circular shape with a predetermined size. Then, as shown in Fig. 3 (a), the blank (10) is placed between the lower mold (61) and the upper mold (62) of the press forming device (6), and if the upper mold (62) is lowered, The outer periphery of the blank (10) is clamped by the bottom surface of the upper mold (62) and the top surface of the pressure plate (63). If the upper die (62) is further lowered in this state, drawing processing is performed on the blank (10) as shown in FIG. 3( b ). After that, trimming processing (not shown) is performed on the outer peripheral portion of the flange portion ( 23 ) as required. In this way, a cup-shaped shaped container (2) with a flange (23) as shown in Fig. 2 can be obtained. In addition, the molded container is preferably formed by the above-mentioned drawing forming process, but it may also be formed by stretching forming process, for example. <Tensile properties/thickness of each layer>

如後所述，在將使用上述成形容器（2）與蓋材（3）填充內容物（4）並且密封而成的包裝體（5）開封時，捏住蓋材（3）的開封用舌片（3a）並向上拉，此時凸緣部（23）的舌片（3a）附近因應舌片（3a）的向上力而產生彎曲應力。因此，成形容器（2）的保護層（11）、阻隔層（13）、密封層（15）的剛性越大則開封時凸緣部（23）越難拉起，而可平順地進行開封。另一方面，保護層（11）、阻隔層（13）、密封層（15）必須因應此等所負責之功能來設定各層（11）（13）（15）的厚度，例如，若密封層（15）變得太薄則有損及密封性的疑慮，密封層（15）變得太厚亦容易在蒸煮殺菌後等發生凸緣部（23）的變形（波折等）而有密封性降低之疑慮。尤其是為了對應成形容器（23）薄化的需求，考量開封性與密封性的平衡變得重要。 本發明的第一態樣的實施型態之成形容器用積層體（1），當･保護層（11）的拉伸降伏強度：σA（N/mm²）； ･保護層（11）的厚度：tA（mm）； ･阻隔層（13）的拉伸強度：σB（N/mm²）； ･阻隔層（13）的厚度：tB（mm）； ･密封層（15）的拉伸降伏強度：σC（N/mm²）； ･密封層（15）的厚度：tC（mm）時，滿足16≦σA×tA+σB×tB+σC×tC≦25的關係， 將該積層體成形而成的成形容器（2），例如在煮沸殺菌後或蒸煮殺菌後亦可得到優良的密封性，可長期保存內容物，而且在開封時凸緣部（23）不會被拉起，開封性良好（參照後述的實施例1至10）。 又，凸緣部（23）之寬度相同時，若考量開封性（開封時凸緣部（23）拉起的難易度），更佳為18≦σA×tA+σB×tB+σC×tC≦25。As will be described later, when unsealing the package ( 5 ) filled with the contents ( 4 ) and sealed using the molded container ( 2 ) and lid ( 3 ) described above, pinch the opening tongue of the lid ( 3 ) The piece (3a) is pulled upward, and at this time, bending stress is generated near the tongue piece (3a) of the flange part (23) due to the upward force of the tongue piece (3a). Therefore, the greater the rigidity of the protective layer (11), barrier layer (13) and sealing layer (15) of the molded container (2), the harder it is to pull up the flange portion (23) during unsealing, and smoother unsealing can be performed. On the other hand, the protective layer (11), barrier layer (13), and sealing layer (15) must set the thickness of each layer (11) (13) (15) in response to these responsible functions, for example, if the sealing layer ( 15) If it is too thin, the sealing performance may be damaged, and if the sealing layer (15) is too thick, deformation (wrinkling, etc.) of the flange part (23) may easily occur after retort sterilization, etc., and the sealing performance may decrease doubt. In particular, it is important to consider the balance between the openability and the airtightness in order to respond to the thinning of the molded container ( 23 ). The laminated body (1) for molded containers according to the implementation form of the first aspect of the present invention is: ･The tensile yield strength of the protective layer (11): σA (N/mm² ); ･The thickness of the protective layer (11) : tA (mm); ･The tensile strength of the barrier layer (13): σB (N/mm² ); ･The thickness of the barrier layer (13): tB (mm); ･The tensile yield strength of the sealing layer (15) : σC (N/mm² ); ･The thickness of the sealing layer (15): tC (mm), satisfying the relationship of 16≦σA×tA+σB×tB+σC×tC≦25, and forming the laminate The shaped container (2), for example, can obtain excellent airtightness after boiling sterilization or retort sterilization, and can store the contents for a long time, and the flange part (23) will not be pulled up when unsealing, and the unsealing performance is good ( Refer to Examples 1 to 10 described later). Also, when the width of the flange portion (23) is the same, considering the unsealability (ease of pulling the flange portion (23) when opening), it is more preferable that 18≦σA×tA+σB×tB+σC×tC≦ 25.

又，在成形容器（2）之凸緣部（23）上產生的波折，據認為是因為形成阻隔層（13）之鋁箔的剛性與形成密封層（15）及保護層（11）（尤其是密封層（15））的合成樹脂膜中因成形後回彈所導致的殘留應力以及因加熱殺菌時的熱影響所導致的收縮應力的相關性所引起。 本發明的第二態樣的實施型態之成形容器用積層體（1），當･保護層（11）的拉伸降伏強度：σA（N/mm²）； ･保護層（11）的厚度：tA（mm）； ･阻隔層（13）的拉伸強度：σB（N/mm²）； ･阻隔層（13）的厚度：tB（mm）； ･密封層（15）的拉伸降伏強度：σC（N/mm²）； ･密封層（15）的厚度：tC（mm）時，滿足0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95的關係，藉此，抑制在成形容器（1）的成形後及蒸煮殺菌後等在凸緣部（23）上產生波折等變形，而且凸緣部（23）變得平滑而可發揮確保優良之密封性這樣的效果（參照後述實施例11至18）。 又，除了上述效果以外，若進一步考量包裝體（1）的開封性，則更佳為0.3≦（σA×tA+σC×tC）/（σB×tB）≦0.95。Again, the waviness produced on the flange portion (23) of the shaped container (2) is considered to be due to the rigidity of the aluminum foil forming the barrier layer (13) and the formation of the sealing layer (15) and protective layer (11) (especially The synthetic resin film of the sealing layer (15) is caused by the correlation between the residual stress caused by springback after forming and the shrinkage stress caused by the heat influence during heat sterilization. The laminated body (1) for a molded container according to the embodiment of the second aspect of the present invention, when ･ the tensile yield strength of the protective layer (11): σA (N/mm² ); ･thickness of the protective layer (11) : tA (mm); ･The tensile strength of the barrier layer (13): σB (N/mm² ); ･The thickness of the barrier layer (13): tB (mm); ･The tensile yield strength of the sealing layer (15) : σC (N/mm² ); ･The thickness of the sealing layer (15): tC (mm), it satisfies the relationship of 0.1≦(σA×tA+σC×tC)/(σB×tB)≦0.95, whereby, The deformation such as waviness on the flange portion (23) is suppressed after the molding of the molded container (1) and after retort sterilization, etc., and the flange portion (23) becomes smooth to ensure excellent sealing performance ( Refer to Examples 11 to 18 described later). In addition, in addition to the above-mentioned effects, if the opening property of the package ( 1 ) is further considered, it is more preferably 0.3≦(σA×tA+σC×tC)/(σB×tB)≦0.95.

再者，本發明之第三態樣的成形容器用積層體（1），滿足16≦σA×tA+σB×tB+σC×tC≦25的關係，並且滿足0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95的關係。 根據此積層體（1），可與上述第一態樣的成形容器用積層體（1）的效果及上述第二態樣的成形容器用積層體（1）的效果發揮加乘效果（參照後述實施例1至4及實施例11至14）。 ＜包裝體＞Furthermore, the laminate (1) for molded containers according to the third aspect of the present invention satisfies the relationship of 16≦σA×tA+σB×tB+σC×tC≦25, and also satisfies 0.1≦(σA×tA+σC× tC)/(σB×tB)≦0.95. According to this laminate (1), it is possible to exhibit a synergistic effect with the effect of the laminate (1) for molded containers of the above-mentioned first aspect and the effect of the laminate (1) for molded containers of the second aspect above (see below). Examples 1 to 4 and Examples 11 to 14). ＜Package＞

圖4係顯示使用上述成形容器（2）將內容物密封包裝而成之包裝體。 圖示的包裝體（5）中，蓋材（3）的底面周緣部熱熔接於填充有內容物（4）的成形容器（2）之凸緣部（23）頂面上。 蓋材（3）與成形容器（2）的凸緣部（23）對應而在俯視下為圓形，其中一體地設有開封用舌片（3a），其係從外周緣部之周方向長度的一部分往外突出。 作為內容物（4），可列舉例如：食品、醫療藥品、化學製品、電子零件、電池、衛生用品、其他工業產品等。作為食品，可列舉例如：奶油、果凍、羊羹、布丁、味噌、咖哩、義大利麵醬、果汁及醬汁等。又，內容物（4）的形狀亦無特別限定，可為液體、半固體及固體的任一者。 ＜蓋材的構成＞Fig. 4 shows a packaging body obtained by sealing and packaging the contents using the above-mentioned shaped container (2). In the package ( 5 ) shown in the figure, the bottom peripheral edge of the lid ( 3 ) is thermally welded to the top of the flange ( 23 ) of the molded container ( 2 ) filled with the content ( 4 ). The cover material (3) corresponds to the flange portion (23) of the shaped container (2) and is circular in plan view, wherein an unsealing tongue piece (3a) is integrally provided, which is the circumferential length from the outer peripheral edge portion Part of it protrudes outward. Examples of the contents (4) include foods, medical drugs, chemicals, electronic parts, batteries, hygiene products, and other industrial products. Examples of foods include cream, jelly, yokan, pudding, miso, curry, pasta sauce, fruit juice, and sauces. Moreover, the shape of the content (4) is not specifically limited, Any of liquid, semi-solid, and solid may be sufficient. ＜Composition of cover material＞

蓋材（3）係成形容器（2）的熱封合材，其係將從外側（上側）依序具有保護層（31）、阻隔層（32）及密封層（33）的蓋材用積層體加工成既定形狀者（參照圖5及圖6）。圖中雖省略，但在保護層（31）與阻隔層（32）之間及/或阻隔層（32）與密封層（33）之間亦可存在接著劑層。作為構成上述接著劑層的接著劑，可使用與構成成形容器用積層體（1）之接著劑層（12）（14）的接著劑相同者。The lid material (3) is a heat-sealing material for forming a container (2), and it is a laminate for a lid material that has a protective layer (31), a barrier layer (32) and a sealing layer (33) sequentially from the outside (upper side) Body processed into a predetermined shape (refer to Figure 5 and Figure 6). Although omitted in the figure, there may also be an adhesive layer between the protective layer ( 31 ) and the barrier layer ( 32 ) and/or between the barrier layer ( 32 ) and the sealing layer ( 33 ). As the adhesive constituting the above-mentioned adhesive layer, the same one as that constituting the adhesive layer ( 12 ) ( 14 ) of the laminate ( 1 ) for a molded container can be used.

蓋材（3）的保護層（31）係構成蓋材（3）之最外表面的層，其係以各種習知的合成樹脂構成。保護層（31）可為如圖示之單層，亦可為2層以上的多層。作為保護層（31），較佳為聚酯、聚醯胺、聚烯烴的單層或多層膜。作為聚酯，可例示聚對苯二甲酸乙二酯（PET）；作為聚醯胺，可例示延伸尼龍（ONy）；作為聚烯烴，可例示延伸聚丙烯（OPP）。又，保護層（31）亦可藉由以硝化綿、蟲膠樹脂、環氧樹脂、胺基甲酸酯樹脂、氯化聚烯烴樹脂、丙烯酸樹脂、氯化乙烯-乙酸乙烯酯共聚物等的保護劑（overcoat agent）所形成之塗布層構成。 保護層（31）厚度，若考量耐傷性、成形性，則較佳為0.006至0.1mm，更佳為0.009至0.03mm。The protective layer (31) of the cover material (3) is the layer that constitutes the outermost surface of the cover material (3), and it is made of various known synthetic resins. The protective layer (31) can be a single layer as shown in the figure, or it can be a multilayer of two or more layers. As the protective layer (31), it is preferably a single-layer or multi-layer film of polyester, polyamide, or polyolefin. Examples of polyester include polyethylene terephthalate (PET); examples of polyamide include elongated nylon (ONy); and examples of polyolefin include elongated polypropylene (OPP). Also, the protective layer (31) can also be made of nitrocellulose, shellac resin, epoxy resin, urethane resin, chlorinated polyolefin resin, acrylic resin, chlorinated ethylene-vinyl acetate copolymer, etc. The coating layer formed by the protective agent (overcoat agent). The thickness of the protective layer ( 31 ) is preferably from 0.006 to 0.1 mm, more preferably from 0.009 to 0.03 mm, in consideration of scratch resistance and formability.

阻隔層（32）係用以保護包裝體（5）的內容物（4）不受氣體、水蒸氣及光等影響的層，其係由金屬箔構成。構成阻隔層（13）的金屬箔，特佳為鋁箔。作為該鋁箔，宜與構成成形容器用積層體（1）之阻隔層（13）的鋁箔相同。又，亦可在該鋁箔的單面或雙面上設置與成形容器用積層體（1）之情況相同的基底層。 阻隔層（32）的厚度，若考量水蒸氣穿透度、開封性，則較佳為0.009至0.05mm，更佳為0.012至0.025mm。The barrier layer ( 32 ) is a layer for protecting the contents ( 4 ) of the package ( 5 ) from gas, water vapor, light, etc., and is made of metal foil. The metal foil constituting the barrier layer (13) is particularly preferably aluminum foil. As this aluminum foil, it is preferable to be the same as the aluminum foil which comprises the barrier layer (13) of the laminated body (1) for molded containers. Moreover, the base layer similar to the case of the laminated body (1) for molded containers may be provided on one side or both sides of this aluminum foil. The thickness of the barrier layer ( 32 ) is preferably 0.009 to 0.05 mm, more preferably 0.012 to 0.025 mm, considering water vapor permeability and unsealing property.

密封層（33）為形成蓋材（3）之最內表面的層，又亦為構成與成形容器（2）之凸緣部（23）的密封面的層，其係由各種習知的熱熔接性樹脂構成。密封層（33）除了如圖示之單層以外，亦可為2層以上的多層。 密封層（33）較佳係由聚烯烴的單層或多層膜構成。作為聚烯烴，可例示均聚丙烯（hPP）、乙烯-丙烯無規共聚物（rPP）、乙烯-丙烯嵌段共聚物（bPP）、聚乙烯（PE）。又，作為聚乙烯，可例示低密度聚乙烯（LDPE）、直鏈狀低密度聚乙烯（LLDPE）、高密度聚乙烯（HDPE）。 密封層（33）的厚度，若考量密封強度、密封時的導熱性，則較佳為0.02至0.2mm，更佳為0.03至0.10mm。The sealing layer (33) is the layer that forms the innermost surface of the cover material (3), and is also the layer that constitutes the sealing surface of the flange portion (23) of the shaped container (2). Made of weldable resin. The sealing layer (33) may be a multilayer of more than two layers in addition to the single layer as shown in the figure. The sealing layer (33) preferably consists of a polyolefin monolayer or multilayer film. Examples of the polyolefin include homopolypropylene (hPP), ethylene-propylene random copolymer (rPP), ethylene-propylene block copolymer (bPP), and polyethylene (PE). Moreover, examples of polyethylene include low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and high-density polyethylene (HDPE). The thickness of the sealing layer ( 33 ) is preferably 0.02 to 0.2 mm, more preferably 0.03 to 0.10 mm, considering the sealing strength and thermal conductivity during sealing.

形成蓋材（3）之積層體，可以乾式疊層法、熔融擠製疊層法、熱疊層法、凹版塗布法等各種習知的方法製造。 蓋材（3）的形狀、尺寸可因應成形容器（2）的凸緣部（23）之形狀、尺寸來適當設定。 ＜包裝體的密封結構/第一態樣＞The laminate forming the cover material (3) can be produced by various known methods such as dry lamination, melt extrusion lamination, thermal lamination, and gravure coating. The shape and size of the lid material (3) can be appropriately set according to the shape and size of the flange portion (23) of the molded container (2). <Sealing structure of package/first aspect>

圖5係顯示上述包裝體（5）的密封結構之第一態樣。 此包裝體（5）中，成形容器（1）的密封層（15）係由易開封性膜構成。易開封性膜具有多層結構，其構成在將蓋材（4）剝離以進行開封時會在既定的剝離開封位置（P1）發生層間剝離的態樣。具體而言，例如密封層（15）係由從外側依序積層聚乙烯層（較佳為高密度聚乙烯（HDPE）層）、聚丙烯層、聚乙烯層而成的聚烯烴共擠製膜所構成，該外側的聚乙烯層與由蓋材（3）之聚乙烯所構成的密封層（33）熱熔接而形成密封部（HS）。密封部（HS）的寬度（W2），若考量密封性及開封性，則較佳為2至18mm，更佳為3至10mm。又，在成形容器（2）的凸緣部（23）頂面，在其徑向上既定處形成有環狀的切縫（231），其到達密封層（15）的剝離開封位置（P1）或比其更深的位置。 成形容器（2）的凸緣部（23）頂面與蓋材（3）底面的熱熔接除了以使用密封板的熱封進行以外，亦可以高頻密封或超音波密封進行。 包裝體（5）開封時，用手指捏住蓋材（3）的開封用舌片（3a）並向上拉。藉此，成形容器（2）的凸緣部（23）的密封層（15）在剝離開封位置（P1）從外側逐漸發生層間剝離，若剝離到達切縫（231）的位置，則密封層（15）在剝離開封位置（P1）上下斷開。若再將舌片（3a）向上拉，則在斷開的密封層（15）之上側部分（15X）附著蓋材（3）的狀態下，蓋材（3）從凸緣部（23）分離，而包裝體（5）開封（參照圖5的（b））。 此處，如圖5的（a）所示，以熱封進行成形容器（2）的凸部（23）與蓋材（3）的熱熔接時，環狀的密封板（10） 係構成下述態樣：其外周緣從凸緣部（23）之外周緣起算以1.5至2mm的距離（S1）位於徑向外側，其內周緣從凸緣部（23）之切縫（231）的底部起算以1至2mm的距離（S2）位於徑向外側，亦即較佳係以使密封板（10）的外徑及內徑符合上述配置的方式進行設定。根據這樣的構成，在熱熔接時不易在凸緣部（23）的外周緣附近蓄積樹脂，在開封時所施加之外力容易集中在凸緣部（23）的密封層（15）的剝離開封位置（P1），開封性變得更加良好。 ＜包裝體的密封結構/第二態樣＞Fig. 5 shows the first aspect of the sealing structure of the above-mentioned package (5). In this package (5), the sealing layer (15) of the molded container (1) is composed of an easy-openable film. The easy-openable film has a multilayer structure, and is configured in such a way that interlayer peeling occurs at a predetermined peeling-opening position ( P1 ) when the lid material ( 4 ) is peeled off to be opened. Specifically, for example, the sealing layer (15) is a polyolefin co-extrusion film formed by sequentially laminating a polyethylene layer (preferably a high-density polyethylene (HDPE) layer), a polypropylene layer, and a polyethylene layer from the outside. In this configuration, the outer polyethylene layer is thermally welded to the sealing layer (33) made of polyethylene of the cover material (3) to form a sealing portion (HS). The width (W2) of the sealing portion (HS) is preferably 2 to 18 mm, more preferably 3 to 10 mm, in consideration of sealing performance and unsealing performance. Also, on the top surface of the flange part (23) of the shaped container (2), an annular slit (231) is formed at a predetermined position in the radial direction, which reaches the peeling and unsealing position (P1) of the sealing layer (15) or deeper than that. The heat welding between the top surface of the flange part (23) of the molded container (2) and the bottom surface of the lid material (3) can be performed not only by heat sealing using a sealing plate, but also by high-frequency sealing or ultrasonic sealing. When unsealing the package (5), pinch the unsealing tongue (3a) of the lid (3) with your fingers and pull it upward. Thereby, the sealing layer (15) of the flange part (23) of the shaped container (2) gradually undergoes interlayer delamination from the outside at the peeling and unsealing position (P1), and if the delamination reaches the position of the slit (231), the sealing layer ( 15) Disconnect up and down at the peel-off position (P1). If the tongue piece (3a) is pulled upward again, the cover material (3) will be separated from the flange part (23) in the state where the upper part (15X) of the disconnected sealing layer (15) is attached to the cover material (3) , and the package ( 5 ) is unsealed (see (b) of FIG. 5 ). Here, as shown in Fig. 5(a), when the convex part (23) of the molded container (2) and the lid material (3) are thermally welded by heat sealing, the ring-shaped sealing plate (10) constitutes the following Described aspect: the outer peripheral edge is located radially outward from the outer peripheral edge of the flange part (23) at a distance (S1) of 1.5 to 2 mm, and the inner peripheral edge is located at the bottom of the slit (231) of the flange part (23) Initially, the distance ( S2 ) of 1 to 2 mm is located on the outside in the radial direction, that is, it is preferably set in such a way that the outer diameter and inner diameter of the sealing plate ( 10 ) conform to the above configuration. According to such a configuration, it is difficult for resin to accumulate near the outer peripheral edge of the flange portion (23) during thermal welding, and the external force applied during unsealing tends to concentrate on the peeling and unsealing position of the sealing layer (15) of the flange portion (23). (P1), and the opening property becomes more favorable. <Sealing Structure of Package/Second Aspect>

圖6係顯示上述包裝體（5）的密封結構之第二態樣。 此包裝體（5）中，蓋材（3）的密封層（33）係由易開封性膜構成。易開封性膜可進行凝集破壞，將蓋材（4）剝離以進行開封時，會在密封層（33）內發生凝集剝離。具體而言，例如蓋材（3）的密封層（33）係由聚丙烯（PP）基質共擠製多層膜（凝集破壞型）構成，該層與構成成形容器（2）之凸緣部（23）頂面的由聚丙烯（例如均聚丙烯（hPP））膜所構成之密封層（15）熱熔接，而形成密封部（HS）。密封部（HS）的寬度（W2），若考量密封性及開封性，則較佳為2至18mm，更佳為3至10mm。又，此態樣中，成形容器（2）的凸緣部（23）頂面上並未形成有切縫（231）。 成形容器（2）的凸緣部（23）頂面與蓋材（3）底面的熱熔接除了以使用密封板的熱封進行以外，亦可使用高頻密封或超音波密封進行。 包裝體（5）開封時，用手指捏住蓋材（3）的開封用舌片（3a）並將其向上拉。藉此，蓋材的密封層（33）從密封部（HS）的外周緣的位置逐漸凝集剝離，若剝離到達密封部（HS）的內周緣或凸緣部（23）頂面的內周緣，則密封層（33）上下斷開，斷開的密封層（33）的下側部分（33X）殘留於凸緣部（23）。若再將舌片（3a）向上拉，則蓋材（3）從凸緣部（23）分離，包裝體（5）開封（參照圖6的（b））。 此處，如圖6的（a）所示，以熱封進行成形容器（2）的凸緣部（23）與蓋材（3）之熱熔接時，環狀的密封板（10） 構成下述態樣：其外周緣從凸緣部（23）的外周緣起算以1至2mm的距離（S3）位於徑向內側，且其內周緣從凸緣部（23）底面之內周緣起算以1至2mm的距離（S4）位於徑向外側，亦即較佳係以使密封板（10）的外徑及內徑符合上述配置的方式設定。若為這種構成，則在熱熔接時不易在凸緣部（23）的外周端緣面附近蓄積樹脂，在開封時施加的外力容易集中於蓋材的密封層（33），開封性變得更加良好。 ＜包裝體的密封性＞Fig. 6 shows the second aspect of the sealing structure of the above-mentioned package (5). In this package (5), the sealing layer (33) of the cover material (3) is made of an easy-openable film. The easily-openable film undergoes coagulation failure, and when the lid material (4) is peeled off to open the seal, cohesion and detachment occur in the sealing layer (33). Specifically, for example, the sealing layer (33) of the cover material (3) is composed of a polypropylene (PP) matrix co-extruded multilayer film (coagulation failure type), and this layer and the flange portion ( 23) The sealing layer (15) made of polypropylene (for example homopolypropylene (hPP)) film on the top surface is thermally welded to form the sealing part (HS). The width (W2) of the sealing portion (HS) is preferably 2 to 18 mm, more preferably 3 to 10 mm, in consideration of sealing performance and unsealing performance. Also, in this aspect, no slits (231) are formed on the top surface of the flange portion (23) of the shaped container (2). The heat welding between the top surface of the flange part (23) of the molded container (2) and the bottom surface of the cover material (3) can be performed not only by heat sealing using a sealing plate, but also by high frequency sealing or ultrasonic sealing. When unsealing the package (5), pinch the unsealing tongue (3a) of the lid (3) with your fingers and pull it upward. In this way, the sealing layer (33) of the cover material is gradually agglomerated and peeled from the outer peripheral edge of the sealing part (HS), and if the peeling reaches the inner peripheral edge of the sealing part (HS) or the inner peripheral edge of the top surface of the flange part (23), Then, the sealing layer ( 33 ) is broken up and down, and the lower part ( 33X ) of the broken sealing layer ( 33 ) remains on the flange portion ( 23 ). When the tongue ( 3 a ) is further pulled upward, the lid ( 3 ) is separated from the flange portion ( 23 ), and the package ( 5 ) is unsealed (see FIG. 6( b )). Here, as shown in Fig. 6(a), when the flange portion (23) of the molded container (2) and the lid material (3) are thermally welded by heat sealing, the ring-shaped sealing plate (10) constitutes the bottom Said aspect: the outer peripheral edge is located radially inward at a distance (S3) of 1 to 2 mm from the outer peripheral edge of the flange portion (23), and the inner peripheral edge is located at a distance of 1 mm from the inner peripheral edge of the bottom surface of the flange portion (23). The distance ( S4 ) to 2 mm is located on the outside in the radial direction, that is, it is preferably set so that the outer diameter and inner diameter of the sealing plate ( 10 ) conform to the above arrangement. With such a configuration, it is difficult to accumulate resin near the outer peripheral edge surface of the flange portion (23) during thermal welding, and the external force applied during unsealing is easy to concentrate on the sealing layer (33) of the lid material, and the unsealing property is improved. better. ＜Sealability of package＞

包裝體（5）在破裂時最大壓力為40kPa以上。此處，「破裂時最大壓力」係指依據JIS Z0238:1998所規定的「容器的破裂強度試驗方法」，以125℃、20分鐘的條件對於包裝體進行蒸煮處理後，在其蓋材的表面上貼附厚度1mm的橡膠片，從橡膠片的上方刺入空氣針，將壓縮空氣以1.0±0.2公升/min的量送入包裝體內，在包裝體破裂時的最大壓力（容器內壓力）。 藉由滿足以上的條件，成形容器（2）的凸緣部（23）與蓋材（3）的密封部（HS）之封合強度高而成為密封性優良的包裝體（5），因此可確實地長期保存內容物。包裝體（5）在破裂時的最大壓力，若考量密封性及開封性，更佳為45至65kPa。 ［實施例］The maximum pressure of the packaging body (5) is above 40kPa when it ruptures. Here, the "maximum pressure at the time of rupture" refers to the pressure on the surface of the lid after retorting the package at 125°C for 20 minutes in accordance with the "Test method for bursting strength of containers" stipulated in JIS Z0238:1998. A rubber sheet with a thickness of 1mm is attached to the top, and the air needle is pierced from the top of the rubber sheet, and the compressed air is sent into the package at a rate of 1.0±0.2 liters/min. The maximum pressure (inner pressure of the container) when the package is broken. By satisfying the above conditions, the sealing strength between the flange part (23) of the molded container (2) and the sealing part (HS) of the cover material (3) is high, and the packaging body (5) with excellent airtightness can be obtained. I preserve the contents for a long term reliably. The maximum pressure of the packaging body (5) when it breaks is more preferably 45 to 65kPa in consideration of the sealing and unsealing properties. [Example]

接著說明本發明的實施例，但本發明不限於下的實施例。 又，以下的說明中，「rPP」表示乙烯-丙烯無規共聚物，「bPP」表示乙烯-丙烯嵌段共聚物，「CPP」表示無延伸聚丙烯，「由T模法而來的CPP膜」則表示將rPP層、bPP層、rPP層依序積層而成之無延伸共擠製3層聚丙烯膜，該膜的層比係在rPP:bPP:rPP=1:8:1至2:6:2的範圍。再者，｢HDPE｣表示高密度聚乙烯，「LLDPE」表示直鏈狀低密度聚乙烯。 ［實施例1］ ＜成形容器用積層體的製作＞Next, examples of the present invention will be described, but the present invention is not limited to the following examples. In addition, in the following description, "rPP" means ethylene-propylene random copolymer, "bPP" means ethylene-propylene block copolymer, "CPP" means non-stretched polypropylene, and "CPP film obtained by T-die method ” means that the rPP layer, bPP layer, and rPP layer are sequentially laminated to form a non-stretched co-extruded 3-layer polypropylene film. The layer ratio of the film is rPP:bPP:rPP=1:8:1 to 2: 6:2 range. In addition, "HDPE" means high-density polyethylene, and "LLDPE" means linear low-density polyethylene. [Example 1] ＜Production of laminates for molded containers＞

在由形成阻隔層的A8021H-O材所構成的0.12mm厚之鋁箔的雙面上，以鉻附著量在單面上為10mg/m²的方式塗布由磷酸、聚丙烯酸、氯化鉻(III)、水及醇所構成的化學處理液，將其乾燥而生成化學皮膜，藉此形成經處理鋁箔。 接著，在經處理鋁箔的一面上塗布聚酯聚胺基甲酸酯系接著劑0.003mm而形成接著劑層，在其上貼合由T模法而來的厚度0.03mm之CPP膜（rPP層（0.003mm）/bPP層（0.024mm）/rPP層（0.003mm））以形成保護層。 又，在經處理鋁箔的另一面上塗布聚酯聚胺基甲酸酯系接著劑0.003mm以形成接著劑層，以HDPE層為外側的方式將厚度0.3mm的聚烯烴共擠製膜（HDPE層（0.05mm）/PP層/PE層（PP層+PE層=0.25mm））貼合於其上以形成密封層，之後於40℃時效處理8天，藉此得到積層體。 ＜成形容器的製作＞On both sides of a 0.12mm thick aluminum foil made of A8021H-O material forming^a barrier layer, phosphoric acid, polyacrylic acid, chromium chloride (III ), water and alcohol, and dry it to form a chemical film, thereby forming a treated aluminum foil. Next, 0.003 mm of polyester polyurethane adhesive is coated on one side of the treated aluminum foil to form an adhesive layer, and a CPP film (rPP layer) with a thickness of 0.03 mm obtained by the T-die method is pasted on it. (0.003mm)/bPP layer (0.024mm)/rPP layer (0.003mm)) to form a protective layer. In addition, 0.003mm of polyester polyurethane adhesive was coated on the other side of the treated aluminum foil to form an adhesive layer, and a polyolefin film (HDPE layer (0.05mm)/PP layer/PE layer (PP layer+PE layer=0.25mm)) was laminated thereon to form a sealing layer, and then aged at 40°C for 8 days to obtain a laminate. ＜Fabrication of molded containers＞

接著，將上述積層體沖切成既定尺寸的圓形而形成毛坯，藉由沖壓成形裝置以CPP膜（保護層）側成為容器外側的方式對該毛坯進行抽拉加工（參照圖3），藉此製作圖2所示之杯狀成形容器。 成形容器的尺寸如下：開口徑（凸緣部的內徑）：62.5mm，底壁部的直徑：55.4mm，高度：24.5mm，凸緣部的寬度：7mm，內容積：64cc。 ＜蓋材的製作＞Next, the above-mentioned laminate is punched into a circular shape of a predetermined size to form a blank, and the blank is drawn by a press forming device so that the CPP film (protective layer) side becomes the outside of the container (see Figure 3). This manufactures the cup-shaped container shown in Figure 2. The dimensions of the molded container were as follows: opening diameter (inner diameter of the flange): 62.5 mm, diameter of the bottom wall: 55.4 mm, height: 24.5 mm, width of the flange: 7 mm, and internal volume: 64 cc. ＜Making of cover material＞

使用雙液硬化型的聚酯聚胺基甲酸酯樹脂系接著劑，將作為保護層的厚度0.012mm之PET膜乾式疊層於由A1N30H-O材所構成的0.02mm厚的鋁箔之單面上，並且使用雙液硬化型的聚酯聚胺基甲酸酯樹脂系接著劑，將作為密封層的厚度0.03mm之LLDPE膜乾式疊層於該鋁箔的另一面上，在40℃的環境下養護5天，藉此製作蓋材用積層體。 將所得之積層體裁切成符合成形容器之凸緣部所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 ＜包裝體的製作＞Using a two-component curing type polyester polyurethane resin adhesive, dry-laminate a 0.012mm thick PET film as a protective layer on one side of a 0.02mm thick aluminum foil made of A1N30H-O material On the other side of the aluminum foil, and using a two-component curing polyester polyurethane resin adhesive, dry-laminate a LLDPE film with a thickness of 0.03 mm as a sealing layer on the other side of the aluminum foil, and in an environment of 40 ° C It was cured for 5 days to make a laminate for lid materials. The obtained laminate is cut into the shape and size required for the flange portion of the molded container, thereby producing a lid material with an unsealing tongue. ＜Package making＞

在上述各成形容器中注入64ml的水作為內容物。之後，以LLDPE膜側相接的方式將蓋材重疊於成形容器之凸緣部頂面，將加熱至160℃的環狀密封板以150kgf的加壓力按壓於此等的重合面3秒以進行熱封（熱熔接），藉此製作包裝體（裝有水的容器）。 另外，參照圖5的（a），在進行熱封時，藉由使用外徑78.5mm、內徑70.5mm的密封板（10），使所形成之密封部（HS）成為寬度3mm的態樣，且使其外周緣與凸緣部（23）之外周緣一致。又，在凸緣部（23）頂面，與密封板（10）的內徑對應之處預先形成橫剖面V形的切縫（231），其具有到達密封層（15）的至少剝離開封位置（P1）的深度（0.15mm）。 ［實施例2］64 ml of water was poured into each of the above-mentioned molded containers as the contents. Afterwards, the cover material is superimposed on the top surface of the flange part of the molded container in such a way that the LLDPE film side is in contact, and the ring-shaped sealing plate heated to 160°C is pressed against these overlapping surfaces for 3 seconds with a pressure of 150kgf. Heat-sealing (thermo-welding), whereby the package (container with water) is made. In addition, referring to Fig. 5(a), when performing heat sealing, by using a sealing plate (10) with an outer diameter of 78.5 mm and an inner diameter of 70.5 mm, the formed sealing portion (HS) has a width of 3 mm. , and make its outer periphery consistent with the outer periphery of the flange portion (23). Also, on the top surface of the flange part (23), a V-shaped slit (231) in cross section is pre-formed at a place corresponding to the inner diameter of the sealing plate (10), which has at least a peeling and unsealing position reaching the sealing layer (15). (P1) depth (0.15mm). [Example 2]

以由A8021H-O材所構成的0.1mm厚鋁箔形成阻隔層，以0.25mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 以0.03mm厚的PP用易撕膜形成密封層，此外以與實施例1相同的要領製作蓋材用積層體。將所得之積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，除了下述的點之外，以與實施例1相同的要領製作包裝體（裝有水的容器）。亦即，使熱封時的密封板之溫度為200℃。又，參照圖6的（a），在進行熱封時，藉由使用外徑72.5mm、內徑66.5mm的密封板（10），使形成之密封部（HS）的寬度成為3mm。又，凸緣部（23）頂面未形成切縫。 ［實施例3］A 0.1mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.25mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. A sealant layer was formed with a 0.03 mm-thick easy-tear film for PP, and a laminate for a cover material was produced in the same manner as in Example 1. The obtained laminate is cut into a desired shape and size, thereby producing a lid material with a tongue for opening. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 1 except for the following points. That is, the temperature of the sealing plate at the time of heat sealing was 200 degreeC. Also, referring to FIG. 6( a ), when heat sealing is performed, the width of the formed sealing portion (HS) is 3 mm by using a sealing plate ( 10 ) with an outer diameter of 72.5 mm and an inner diameter of 66.5 mm. Also, no slits are formed on the top surface of the flange portion (23). [Example 3]

以由A8021H-O材所構成的0.14mm厚的鋁箔形成阻隔層，以0.03mm厚的無延伸hPP膜形成保護層，以0.25mm厚的LLDPE膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 以0.03mm厚的聚丙烯（PP）基質共擠製多層膜（凝集破壞型）形成蓋材的密封層，此外以與實施例2相同的要領製作蓋材用積層體。將所得之積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［實施例4］A 0.14mm thick aluminum foil made of A8021H-O material is used to form a barrier layer, a 0.03mm thick non-stretched hPP film is used to form a protective layer, and a 0.25mm thick LLDPE film is used to form a sealing layer. Essentials Fabrication of laminates for molded containers. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. A multilayer film (coagulation failure type) was co-extruded with a 0.03 mm thick polypropylene (PP) matrix to form the sealing layer of the cover material, and the laminate for the cover material was produced in the same manner as in Example 2. The obtained laminate is cut into a desired shape and size, thereby producing a lid material with a tongue for opening. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Example 4]

以由A1N30H-O材所構成的0.18mm厚的鋁箔形成阻隔層，以0.3mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［實施例5］A 0.18 mm thick aluminum foil made of AlN30H-O material was used to form a barrier layer, and a 0.3 mm thick non-stretched hPP film was used to form a sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Example 5]

以由A1N30H-O材所構成的0.12mm厚的鋁箔形成阻隔層，以0.4mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［實施例6］A 0.12 mm thick aluminum foil made of AlN30H-O material was used to form a barrier layer, and a 0.4 mm thick non-stretched hPP film was used to form a sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Example 6]

以由A3003H-O材所構成的0.18mm厚的鋁箔形成阻隔層，以0.06mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［實施例7］A 0.18mm-thick aluminum foil made of A3003H-O material was used to form the barrier layer, and a 0.06mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Example 7]

以由A3003H-O材所構成的0.15mm厚的鋁箔形成阻隔層，以0.25mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，使凸緣部的寬度為3mm，此外以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，除了下述的點之外，以與實施例2相同的要領製作包裝體（裝有水的容器）。亦即，參照圖6的（a），在進行熱封時，使用外徑67.5mm、內徑63.5mm的密封板（10），藉此使所形成之密封部（HS）的寬度成為2mm。 ［實施例8］A 0.15mm-thick aluminum foil made of A3003H-O material was used to form the barrier layer, and a 0.25mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1, using a blank made of the obtained laminate and having a flange portion having a width of 3 mm. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2 except for the following points. That is, referring to (a) of FIG. 6 , when performing heat sealing, a sealing plate ( 10 ) with an outer diameter of 67.5 mm and an inner diameter of 63.5 mm is used to make the width of the formed sealing portion (HS) 2 mm. [Example 8]

以由A3003H-O材所構成的0.15mm厚的鋁箔形成阻隔層，以0.25mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，使凸緣部的寬度為20mm，此外以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，除了下述的點之外，以與實施例2相同的要領製作包裝體（裝有水的容器）。亦即，參照圖6的（a），在進行熱封時，使用外徑100.5mm、內徑64.5mm的密封板（10），藉此使所形成之密封部（HS）的寬度成為18mm。 ［實施例9］A 0.15mm-thick aluminum foil made of A3003H-O material was used to form the barrier layer, and a 0.25mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was fabricated in the same manner as in Example 1, using a blank made of the obtained laminate and having a flange portion having a width of 20 mm. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2 except for the following points. That is, referring to (a) of FIG. 6 , when performing heat sealing, a sealing plate ( 10 ) with an outer diameter of 100.5 mm and an inner diameter of 64.5 mm is used, thereby making the width of the formed sealing portion (HS) 18 mm. [Example 9]

以由A8021H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.05mm厚的CPP膜（rPP層（0.005mm）/bPP層（0.040mm）/rPP層（0.005mm））形成保護層，以0.25mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［實施例10］The barrier layer is formed by a 0.08mm thick aluminum foil made of A8021H-O material, and a 0.05mm thick CPP film (rPP layer (0.005mm)/bPP layer (0.040mm)/rPP layer ( 0.005mm)) to form a protective layer, a 0.25mm thick non-stretched hPP film to form a sealing layer, and in the same manner as in Example 1, a laminate for a shaped container was produced. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Example 10]

以由T模法而來的0.2mm厚的CPP膜（rPP層（0.02mm）/bPP層（0.16mm）/rPP層（0.02mm））形成保護層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例1相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例1相同的要領製作包裝體（裝有水的容器）。 ［比較例1］The protective layer was formed with a 0.2mm thick CPP film (rPP layer (0.02mm)/bPP layer (0.16mm)/rPP layer (0.02mm)) obtained by the T-die method, and it was produced in the same way as in Example 1. Laminates for molded containers. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 1 was cut into a desired shape and size, thereby producing a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 1. [Comparative Example 1]

以由A8021H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.25mm厚的CPP膜（rPP層（0.025mm）/bPP層（0.2mm）/rPP層（0.025mm））形成保護層，以0.12mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［比較例2］The barrier layer is formed by a 0.08mm thick aluminum foil made of A8021H-O material, and a 0.25mm thick CPP film (rPP layer (0.025mm)/bPP layer (0.2mm)/rPP layer ( 0.025 mm)) to form a protective layer, a 0.12 mm thick non-stretched hPP film to form a sealing layer, and in the same manner as in Example 1, a laminate for a shaped container was produced. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Comparative Example 2]

以由A1N30-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.04mm厚的CPP膜（rPP層（0.004mm）/bPP層（0.032mm）/rPP層（0.004mm））形成保護層，以0.2mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［比較例3］The barrier layer is formed by a 0.08mm thick aluminum foil made of A1N30-O material, and a 0.04mm thick CPP film (rPP layer (0.004mm)/bPP layer (0.032mm)/rPP layer ( 0.004mm)) to form a protective layer, a 0.2mm thick non-stretched hPP film to form a sealing layer, and in the same manner as in Example 1, a laminate for a shaped container was produced. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Comparative Example 3]

以由A8021H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.025mm厚的CPP膜（rPP層（0.0025mm）/bPP層（0.02mm）/rPP層（0.0025mm））形成保護層，以0.1mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［比較例4］The barrier layer is formed by a 0.08mm thick aluminum foil made of A8021H-O material, and a 0.025mm thick CPP film (rPP layer (0.0025mm)/bPP layer (0.02mm)/rPP layer ( 0.0025mm)) to form a protective layer, a 0.1mm thick non-stretched hPP film to form a sealing layer, and in the same manner as in Example 1, a laminate for a molded container was produced. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Comparative Example 4]

以由A3003H-O材所構成的0.25mm厚的鋁箔形成阻隔層，以由T模法而來的0.04mm厚的CPP膜（rPP層（0.004mm）/bPP層（0.032mm）/rPP層（0.004mm））形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［比較例5］The barrier layer is formed by a 0.25mm thick aluminum foil made of A3003H-O material, and a 0.04mm thick CPP film (rPP layer (0.004mm)/bPP layer (0.032mm)/rPP layer ( 0.004 mm)) to form a sealing layer, and in the same manner as in Example 1, a laminate for a molded container was produced. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Comparative Example 5]

以由A8021H-O材所構成的0.1mm厚的鋁箔形成阻隔層，以0.45mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［比較例6］A 0.1mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.45mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Comparative Example 6]

以由A8021H-O材所構成的0.05mm厚的鋁箔形成阻隔層，以0.2mm厚的無延伸hPP膜形成密封層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例2相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例2相同的要領製作包裝體（裝有水的容器）。 ［比較例7］A 0.05mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.2mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 1. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 2 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 2. [Comparative Example 7]

以由A1N30H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以0.25mm厚的LLDPE膜形成密封層，以由T模法而來的0.030mm厚的CPP膜（rPP層（0.003mm）/bPP層（0.024mm）/rPP層（0.003mm））形成保護層，此外以與實施例1相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例1相同的要領製作成形容器。 將以與實施例3相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例3相同的要領製作包裝體（裝有水的容器）。The barrier layer is formed by 0.08mm thick aluminum foil made of A1N30H-O material, the sealing layer is formed by 0.25mm thick LLDPE film, and the 0.030mm thick CPP film (rPP layer (0.003mm) /bPP layer (0.024 mm)/rPP layer (0.003 mm)) formed a protective layer, and in the same manner as in Example 1, a laminate for molded containers was produced. A molded container was produced in the same manner as in Example 1 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 3 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 3.

針對上述實施例1至10及比較例1至7的成形容器用積層體，將保護層、阻隔層、密封層各別的構成材料及厚度（μm）整理顯示於下表1。For the laminates for molded containers of Examples 1 to 10 and Comparative Examples 1 to 7 above, the respective constituent materials and thicknesses (μm) of the protective layer, barrier layer, and sealing layer are shown in Table 1 below.

［表1］ 成形容器用積層體 成形容器用積層體層構成各層的構成材料/厚度（μm）層構成各層的構成材料/厚度（μm）實施例1密封層共擠製膜300（PP/PE）250/HDPE50比較例1密封層CPP120（HPP）阻隔層AL120（A8021H-O）阻隔層AL80（A8021H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP250（rPP/bPP/rPP）實施例2密封層CPP250（HPP）比較例2密封層CPP200（HPP）阻隔層AL100（A8021H-O）阻隔層AL80（A1N30-O）保護層CPP30（rPP/bPP/rPP）保護層CPP40（rPP/bPP/rPP）實施例3密封層LLDPE250比較例3密封層CPP100（HPP）阻隔層AL140（A8021H-O）阻隔層AL80（A8021H-O）保護層CPP30（HPP）保護層CPP25（rPP/bPP/rPP）實施例4密封層CPP300（HPP）比較例4密封層CPP40（rPP/bPP/rPP）阻隔層AL180（A1N30H-O）阻隔層AL250（A3003H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例5密封層CPP400（HPP）比較例5密封層CPP450（HPP）阻隔層AL120（A1N30H-O）阻隔層AL100（A8021H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例6密封層CPP60（HPP）比較例6密封層CPP200（HPP）阻隔層AL180（A3003H-O）阻隔層AL50（A8021H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例7密封層CPP250（HPP）比較例7密封層LLDPE250阻隔層AL150（A3003H-O）阻隔層AL80（A1N30H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例8密封層CPP250（HPP）   阻隔層AL150（A3003H-O）   保護層CPP30（rPP/bPP/rPP）   實施例9密封層CPP250（HPP）   阻隔層AL80（A8021H-O）   保護層CPP50（rPP/bPP/rPP）   實施例10密封層共擠製膜300（PP/PE）250/HDPE50   阻隔層AL120（A8021H-O）   保護層CPP200（rPP/bPP/rPP）   ＜拉伸特性等＞[Table 1] Laminates for molded containers Laminates for molded containers layer composition Constituent material/thickness of each layer (μm) layer composition Constituent material/thickness of each layer (μm) Example 1 sealing layer Co-extruded film 300 (PP/PE) 250/HDPE50 Comparative example 1 sealing layer CPP120 (HPP) barrier layer AL120 (A8021H-O) barrier layer AL80 (A8021H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP250 (rPP/bPP/rPP) Example 2 sealing layer CPP250 (HPP) Comparative example 2 sealing layer CPP200 (HPP) barrier layer AL100 (A8021H-O) barrier layer AL80 (A1N30-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP40 (rPP/bPP/rPP) Example 3 sealing layer LLDPE250 Comparative example 3 sealing layer CPP100 (HPP) barrier layer AL140 (A8021H-O) barrier layer AL80 (A8021H-O) The protective layer CPP30 (HPP) The protective layer CPP25 (rPP/bPP/rPP) Example 4 sealing layer CPP300 (HPP) Comparative example 4 sealing layer CPP40 (rPP/bPP/rPP) barrier layer AL180 (A1N30H-O) barrier layer AL250 (A3003H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 5 sealing layer CPP400 (HPP) Comparative Example 5 sealing layer CPP450 (HPP) barrier layer AL120 (A1N30H-O) barrier layer AL100 (A8021H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 6 sealing layer CPP60 (HPP) Comparative Example 6 sealing layer CPP200 (HPP) barrier layer AL180 (A3003H-O) barrier layer AL50 (A8021H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 7 sealing layer CPP250 (HPP) Comparative Example 7 sealing layer LLDPE250 barrier layer AL150 (A3003H-O) barrier layer AL80 (A1N30H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 8 sealing layer CPP250 (HPP) barrier layer AL150 (A3003H-O) The protective layer CPP30 (rPP/bPP/rPP) Example 9 sealing layer CPP250 (HPP) barrier layer AL80 (A8021H-O) The protective layer CPP50 (rPP/bPP/rPP) Example 10 sealing layer Co-extruded film 300 (PP/PE) 250/HDPE50 barrier layer AL120 (A8021H-O) The protective layer CPP200 (rPP/bPP/rPP) ＜Tensile properties, etc.＞

針對實施例1至10及比較例1至7的積層體，在下表2中顯示保護層、阻隔層、密封層的厚度（mm）：tA、tB、tC，並且顯示保護層、密封層的拉伸降伏強度（N/mm²）：σA、σC（MD、TD、45°方向的測量值及此等的平均值）、阻隔層的拉伸強度（N/mm²）：σB（MD、TD、45°方向的測量值及此等之相加平均值），而且顯示tA×σA、tB×σB、tC×σC及σA×tA+σB×tB+σC×tC的計算值。For the laminates of Examples 1 to 10 and Comparative Examples 1 to 7, the thicknesses (mm) of the protective layer, barrier layer, and sealing layer are shown in Table 2 below: tA, tB, and tC, and the tensile strengths of the protective layer and the sealing layer are shown. Tensile yield strength (N/mm² ): σA, σC (measured values in MD, TD, 45° directions and their average value), tensile strength of barrier layer (N/mm² ): σB (MD, TD , the measured value in the 45° direction and the summed average of these), and display the calculated values of tA×σA, tB×σB, tC×σC and σA×tA+σB×tB+σC×tC.

［表2］ 保護層阻隔層密封層σAtA+ σBtB + σCtC拉伸降伏強度 σA（N/mm²)3方向的拉伸降伏強度厚度 tA （mm)σA x tA （N/m)拉伸強度 σB （N/mm²)3方向的拉伸降伏強度拉伸降伏強度 tB （mm)σB x tB （N/m)拉伸降伏強度 σC （N/mm²)3方向的拉伸降伏強度厚度 tC （mm)σC x tC （N/m)測量方向（N/mm²)測量方向（N/mm²)測量方向（N/mm²)實施例115.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.1211.07632.7MD TD 45°32.0 33.7 32.50.39.8121.4實施例215.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.19.2332.4MD TD 45°31.8 33.4 32.00.258.117.8實施例332.4MD TD 45°31.8 33.4 32.00.030.97292.3MD TD 45°90.2 92.8 940.1412.92222.1MD TD 45°20.5 22.8 23.10.255.52519.4實施例415.9MD TD 45°16.6 15.2 15.90.030.47778.3MD TD 45°76.8 78.4 80.30.1814.09432.4MD TD 45°31.8 33.4 32.00.39.7224.3實施例515.9MD TD 45°16.6 15.2 15.90.030.47778.3MD TD 45°76.8 78.4 80.30.129.39632.4MD TD 45°31.8 33.4 32.00.412.9622.8實施例615.9MD TD 45°16.6 15.2 15.90.030.477108.2MD TD 45°105.7 108.6 110.60.1819.47632.4MD TD 45°31.8 33.4 32.00.061.94421.9實施例715.9MD TD 45°16.6 15.2 15.90.030.477108.2MD TD 45°105.7 108.6 110.60.1516.2332.4MD TD 45°31.8 33.4 32.00.258.124.8實施例815.9MD TD 45°16.6 15.2 15.90.030.477108.2MD TD 45°105.7 108.6 110.60.1516.2332.4MD TD 45°31.8 33.4 32.00.258.124.8實施例915.9MD TD 45°16.6 15.2 15.90.050.79592.3MD TD 45°90.2 92.8 940.087.38432.4MD TD 45°31.8 33.4 32.00.258.116.3實施例1015.9MD TD 45°16.6 15.2 15.90.23.1892.3MD TD 45°90.2 92.8 940.1211.07632.7MD TD 45°32.0 33.7 32.50.39.8124.1比較例115.9MD TD 45°16.6 15.2 15.90.253.97592.3MD TD 45°90.2 92.8 940.087.38432.4MD TD 45°31.8 33.4 32.00.123.88815.2比較例215.9MD TD 45°16.6 15.2 15.90.040.63678.3MD TD 45°76.8 78.4 80.30.086.26432.4MD TD 45°31.8 33.4 32.00.26.4813.4比較例315.9MD TD 45°16.6 15.2 15.90.0250.397592.3MD TD 45°90.2 92.8 940.087.38432.4MD TD 45°31.8 33.4 32.00.13.2411.0比較例415.9MD TD 45°16.6 15.2 15.90.030.477108.2MD TD 45°105.7 108.6 110.60.2527.0515.9MD TD 45°16.6 15.2 15.90.040.63628.2比較例515.9MD TD 45°16.6 15.2 15.90.030.477108.2MD TD 45°105.7 108.6 110.60.110.8232.4MD TD 45°31.8 33.4 32.00.4514.5825.9比較例615.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.054.61532.4MD TD 45°31.8 33.4 32.00.26.4811.6比較例715.9MD TD 45°16.6 15.2 15.90.030.47778.3MD TD 45°76.8 78.4 80.30.086.26422.1MD TD 45°20.5 22.8 23.10.255.52512.3＜開封時的凸緣部之拉起及開封性的評價＞[Table 2] The protective layer barrier layer sealing layer σAtA + σBtB + σCtC Tensile yield strength σA (N/mm² ) Tensile yield strength in 3 directions Thickness tA (mm) σA x tA (N/m) Tensile strength σB (N/mm² ) Tensile yield strength in 3 directions Tensile yield strength tB (mm) σB x tB (N/m) Tensile yield strength σC (N/mm² ) Tensile yield strength in 3 directions Thickness tC (mm) σC x tC (N/m) Measurement direction (N/mm² ) Measurement direction (N/mm² ) Measurement direction (N/mm² ) Example 1 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.12 11.076 32.7 MD TD 45° 32.0 33.7 32.5 0.3 9.81 21.4 Example 2 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.1 9.23 32.4 MD TD 45° 31.8 33.4 32.0 0.25 8.1 17.8 Example 3 32.4 MD TD 45° 31.8 33.4 32.0 0.03 0.972 92.3 MD TD 45° 90.2 92.8 94 0.14 12.922 22.1 MD TD 45° 20.5 22.8 23.1 0.25 5.525 19.4 Example 4 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 78.3 MD TD 45° 76.8 78.4 80.3 0.18 14.094 32.4 MD TD 45° 31.8 33.4 32.0 0.3 9.72 24.3 Example 5 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 78.3 MD TD 45° 76.8 78.4 80.3 0.12 9.396 32.4 MD TD 45° 31.8 33.4 32.0 0.4 12.96 22.8 Example 6 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.2 MD TD 45° 105.7 108.6 110.6 0.18 19.476 32.4 MD TD 45° 31.8 33.4 32.0 0.06 1.944 21.9 Example 7 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.2 MD TD 45° 105.7 108.6 110.6 0.15 16.23 32.4 MD TD 45° 31.8 33.4 32.0 0.25 8.1 24.8 Example 8 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.2 MD TD 45° 105.7 108.6 110.6 0.15 16.23 32.4 MD TD 45° 31.8 33.4 32.0 0.25 8.1 24.8 Example 9 15.9 MD TD 45° 16.6 15.2 15.9 0.05 0.795 92.3 MD TD 45° 90.2 92.8 94 0.08 7.384 32.4 MD TD 45° 31.8 33.4 32.0 0.25 8.1 16.3 Example 10 15.9 MD TD 45° 16.6 15.2 15.9 0.2 3.18 92.3 MD TD 45° 90.2 92.8 94 0.12 11.076 32.7 MD TD 45° 32.0 33.7 32.5 0.3 9.81 24.1 Comparative example 1 15.9 MD TD 45° 16.6 15.2 15.9 0.25 3.975 92.3 MD TD 45° 90.2 92.8 94 0.08 7.384 32.4 MD TD 45° 31.8 33.4 32.0 0.12 3.888 15.2 Comparative example 2 15.9 MD TD 45° 16.6 15.2 15.9 0.04 0.636 78.3 MD TD 45° 76.8 78.4 80.3 0.08 6.264 32.4 MD TD 45° 31.8 33.4 32.0 0.2 6.48 13.4 Comparative example 3 15.9 MD TD 45° 16.6 15.2 15.9 0.025 0.3975 92.3 MD TD 45° 90.2 92.8 94 0.08 7.384 32.4 MD TD 45° 31.8 33.4 32.0 0.1 3.24 11.0 Comparative example 4 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.2 MD TD 45° 105.7 108.6 110.6 0.25 27.05 15.9 MD TD 45° 16.6 15.2 15.9 0.04 0.636 28.2 Comparative Example 5 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.2 MD TD 45° 105.7 108.6 110.6 0.1 10.82 32.4 MD TD 45° 31.8 33.4 32.0 0.45 14.58 25.9 Comparative example 6 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.05 4.615 32.4 MD TD 45° 31.8 33.4 32.0 0.2 6.48 11.6 Comparative Example 7 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 78.3 MD TD 45° 76.8 78.4 80.3 0.08 6.264 22.1 MD TD 45° 20.5 22.8 23.1 0.25 5.525 12.3 ＜Pull-up of the flange part and evaluation of unsealing property at the time of opening＞

對於實施例1至10及比較例1至7的包裝體以120℃、20分鐘的條件進行蒸煮殺菌處理之後，以蓋材的開封用舌片朝下的方式將成形容器以傾斜45°的狀態設置於拉伸試驗機的容器固定治具，使用拉伸試驗機將舌片向上拉，藉此以下述評價基準對於開封時的凸緣部之拉起及開封性進行評價，評價結果顯示於下表3。 ［凸緣部的拉起（目視評價）］ 〇：凸緣部未被拉起 △：凸緣部被拉起（稍微） ×：凸緣部被拉起（程度大） ［開封性］ 〇：可開封 ×：無法開封 另外，關於比較例6，在成形容器的成形時發生斷裂，因此無法評價。 ＜密封性的評價＞After retort sterilization was performed on the packages of Examples 1 to 10 and Comparative Examples 1 to 7 at 120°C for 20 minutes, the molded container was tilted at 45° with the opening tab of the lid facing down. Installed on the container fixing jig of the tensile testing machine, the tongue piece is pulled up using the tensile testing machine, and the pull-up of the flange portion and the unsealing property at the time of unsealing are evaluated according to the following evaluation criteria. The evaluation results are shown below table 3. [Pull-up of the flange (visual evaluation)] 〇: Flange is not pulled up △: Flange is pulled up (slightly) ×: The flange part is pulled up (to a large extent) [Openability] 〇: Can be opened ×: Unopenable In addition, in Comparative Example 6, fracture occurred during molding of the molded container, so evaluation was not possible. ＜Evaluation of airtightness＞

針對所製作之各包裝體（比較例6除外），依據JIS Z0238:1998所規定的「容器的破裂強度試驗方法」進行密封性的試驗。亦即，以125℃、20分鐘的條件對於包裝體進行蒸煮處理後，在其蓋材的表面上貼附1mm厚的橡膠片。然後，從橡膠片的上方刺入空氣針，以1.0±0.2公升/min的量將壓縮空氣送入包裝體內，以壓力計測量包裝體破裂時的最大壓力（容器內壓力）。針對各包裝體，分別以5個進行試驗。For each of the produced packages (excluding Comparative Example 6), the airtightness test was performed in accordance with the "Test Method for Bursting Strength of Containers" stipulated in JIS Z0238:1998. That is, after retorting the package body at 125° C. for 20 minutes, a rubber sheet with a thickness of 1 mm was attached to the surface of the lid material. Then, pierce the air needle from above the rubber sheet, send compressed air into the package at an amount of 1.0±0.2 liters/min, and measure the maximum pressure (inside the container) when the package breaks with a manometer. The test was performed with 5 packages for each package.

根據所測量之破裂時最大壓力（各包裝體5個相加平均值），以下述評價基準對於各包裝體的密封性進行評價，評價結果顯示於下表3。 〇：密封性良好（破裂時最大壓力≥40kPa） ×：密封性NG（破裂時最大壓力＜40kPa）According to the measured maximum pressure at the time of rupture (the average value of 5 packages for each package), the airtightness of each package was evaluated according to the following evaluation criteria, and the evaluation results are shown in Table 3 below. 〇: Good sealing (maximum pressure at rupture ≥ 40kPa) ×: Sealing NG (maximum pressure at rupture <40kPa)

［表3］ 凸緣部的寬度 （mm）密封部的寬度 （mm）凸緣部的拉起開封性密封性破裂時最大壓力 （kPa）評價實施例173〇〇61〇實施例273〇〇50〇實施例373〇〇53〇實施例473〇〇55〇實施例573〇〇51〇實施例673〇〇44〇實施例732〇〇49〇實施例82018△〇55〇實施例973△〇42〇實施例1073〇〇65〇比較例173××27×比較例273××32×比較例373××26×比較例473〇〇21×比較例573△〇35×比較例673發生成形破裂發生成形破裂－－－－比較例773××33×［實施例11］ ＜成形容器用積層體的製作＞[table 3] Flange width (mm) Width of sealing part (mm) Pull up of the flange Kaifeng tightness Maximum pressure at rupture (kPa) evaluate Example 1 7 3 〇 〇 61 〇 Example 2 7 3 〇 〇 50 〇 Example 3 7 3 〇 〇 53 〇 Example 4 7 3 〇 〇 55 〇 Example 5 7 3 〇 〇 51 〇 Example 6 7 3 〇 〇 44 〇 Example 7 3 2 〇 〇 49 〇 Example 8 20 18 △ 〇 55 〇 Example 9 7 3 △ 〇 42 〇 Example 10 7 3 〇 〇 65 〇 Comparative example 1 7 3 x x 27 x Comparative example 2 7 3 x x 32 x Comparative example 3 7 3 x x 26 x Comparative example 4 7 3 〇 〇 twenty one x Comparative Example 5 7 3 △ 〇 35 x Comparative Example 6 7 3 forming fracture forming fracture -- -- Comparative Example 7 7 3 x x 33 x [Example 11] <Preparation of a laminate for molded containers>

在形成阻隔層的由A8021H-O材所構成之0.12mm厚的鋁箔的雙面上，以鉻附著量在單面上為10mg/m²的方式塗布塗布由磷酸、聚丙烯酸、氯化鉻、水及醇所構成的化學處理液並將其乾燥而生成化學皮膜，藉此形成經處理鋁箔。 接著，在經處理鋁箔的一面上塗布聚酯聚胺基甲酸酯系接著劑0.003mm以形成接著劑層，在其上貼合由T模法而來的0.03mm厚的CPP膜（rPP層（0.003mm）/bPP層（0024mm）/rPP層（0.003mm）），以形成保護層。 又，在經處理鋁箔的另一面上塗布聚酯聚胺基甲酸酯系接著劑0.003mm以形成接著劑層，以HDPE層成為外側的方將0.3mm厚的聚烯烴共擠製膜（HDPE層（0.05mm）/PP層/PE層（PP層+PE層=0.25mm））貼合於其上，以形成密封層，之後於40℃進行時效處理8天，藉此得到積層體。此積層體係與實施例1的積層體相同者。 ＜成形容器的製作＞On both sides of^a 0.12mm thick aluminum foil made of A8021H-O material that forms a barrier layer, apply phosphoric acid, polyacrylic acid, chromium chloride, The chemical treatment solution composed of water and alcohol is dried to form a chemical film, thereby forming a treated aluminum foil. Next, 0.003 mm of polyester polyurethane adhesive is coated on one side of the treated aluminum foil to form an adhesive layer, and a 0.03 mm thick CPP film (rPP layer) from the T-die method is pasted on it. (0.003mm)/bPP layer (0024mm)/rPP layer (0.003mm)) to form a protective layer. In addition, 0.003 mm of polyester polyurethane-based adhesive was coated on the other side of the treated aluminum foil to form an adhesive layer, and a 0.3 mm-thick polyolefin co-extruded film (HDPE layer (0.05mm)/PP layer/PE layer (PP layer+PE layer=0.25mm)) was laminated thereon to form a sealing layer, and then aged at 40°C for 8 days to obtain a laminate. This laminate system is the same as the laminate of Example 1. ＜Fabrication of molded containers＞

接著，以沖壓成形裝置，對於將上述積層體沖切成既定尺寸之圓形而成的毛坯以CPP膜（保護層）側成為容器外側的方式進行抽拉加工（參照圖3），藉此製作如圖2所示的杯狀成形容器。 成形容器的尺寸為開口徑（凸緣部的內徑）：62.5mm，底壁部的直徑：55.4mm，高度：24.5mm，內容積：64cc。 又，製作凸緣部的寬度為7mm、9mm的2種成形容器。 ＜蓋材的製作＞Next, with a press forming device, the blank formed by punching the above-mentioned laminate into a circular shape with a predetermined size is drawn so that the CPP film (protective layer) side becomes the outside of the container (see Figure 3), thereby producing A cup-shaped container as shown in Figure 2. The dimensions of the molded container were opening diameter (inner diameter of the flange): 62.5 mm, diameter of the bottom wall: 55.4 mm, height: 24.5 mm, and internal volume: 64 cc. Also, two types of molded containers having a flange width of 7 mm and 9 mm were produced. ＜Making of cover material＞

在由A1N30H-O材所構成的0.02mm厚的鋁箔的單面上，使用雙液硬化型的聚酯聚胺基甲酸酯樹脂系接著劑，乾式疊層0.012mm厚的PET膜以作為保護層，並且在同一鋁箔的另一面上，使用雙液硬化型的聚酯聚胺基甲酸酯樹脂系接著劑，乾式疊層0.03mm厚的LLDPE膜以作為密封層，在40℃的環境下進行養護5天，藉此製作蓋材用積層體。 將所得之積層體配合2種成形容器的凸緣部而裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 ＜包裝體的製作＞On one side of a 0.02mm thick aluminum foil made of A1N30H-O material, use a two-component curing type polyester polyurethane resin adhesive to dry laminate a 0.012mm thick PET film for protection layer, and on the other side of the same aluminum foil, use a two-component curing polyester polyurethane resin adhesive to dry-laminate a 0.03mm thick LLDPE film as a sealing layer. Curing was carried out for 5 days, thereby producing a laminate for lid materials. The obtained laminate was fitted with the flanges of the two types of molded containers and cut into desired shapes and sizes to produce lid materials with opening tabs. ＜Package making＞

在上述各成形容器中注入64ml的水以作為內容物。之後，以LLDPE膜側接觸的方式將蓋材重合於成形容器的凸緣部頂面，以150kgf的加壓力將加熱至160℃的環狀密封板按壓於此等的重合面上3秒以進行熱封（熱熔接），藉此製作包裝體（裝有水的容器）。 另外，參照圖5的（a），在進行熱封時，凸緣部（23）之寬度為7mm的成形容器（2）的情況係使用外徑78.5mm、內徑70.5mm的密封板（10），凸緣部（23）之寬度為9mm的成形容器（2）的情況係使用外徑82.5mm、內徑74.5mm的密封板（10），藉此使所形成之密封部（HS）其寬度皆為3mm，且使其外周緣與凸緣部（23）的外周緣一致。又，凸緣部（23）的頂面，與密封板（10）的內徑對應之處，預先形成有橫剖面為V形的切縫（231），其具有至少到達密封層（15）之剝離開封位置（P1）的深度（0.15mm）。 ［實施例12］64 ml of water was poured into each of the above-mentioned shaped containers as the contents. After that, the cover material is superimposed on the top surface of the flange part of the molded container in such a way that the LLDPE film side is in contact, and the annular sealing plate heated to 160° C. is pressed against these superimposed surfaces for 3 seconds with a pressure of 150 kgf. Heat-sealing (thermo-welding), whereby the package (container with water) is made. In addition, referring to (a) of Fig. 5, when performing heat sealing, in the case of a shaped container (2) having a flange portion (23) width of 7 mm, a sealing plate (10 ), the formed container (2) with a flange portion (23) width of 9 mm uses a sealing plate (10) with an outer diameter of 82.5 mm and an inner diameter of 74.5 mm, thereby making the formed sealing portion (HS) more The widths are all 3mm, and the outer peripheral edge thereof is consistent with the outer peripheral edge of the flange portion (23). Moreover, the top surface of the flange portion (23) is pre-formed with a V-shaped slit (231) in cross-section at the place corresponding to the inner diameter of the sealing plate (10), which has at least a portion reaching the sealing layer (15). Peel off to the depth (0.15mm) of the unsealed position (P1). [Example 12]

以由A8021H-O材所構成的0.1mm厚鋁箔形成阻隔層，以0.25mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。此積層體係與實施例2的積層體相同者。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 以0.03mm厚的PP用易撕膜形成密封層，此外以與實施例11相同的要領製作蓋材用積層體。將所得之積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，除了下述的點之外，以與實施例11相同的要領製作包裝體（裝有水的容器）。亦即，使熱封時的密封板溫度為200℃。又，參照圖6的（a），在進行熱封時，凸緣部（23）寬度為7mm的成形容器（2）的情況係使用外徑72.5mm、內徑66.5mm的密封板（10），凸緣部（23）寬度為9mm的成形容器（2）的情況係使用外徑74.5mm、內徑68.5mm的密封板（10），藉此使所形成之密封部（HS）的寬度皆為3mm。又，在凸緣部（23）頂面並未形成有切縫。 ［實施例13］A 0.1mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.25mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for shaped containers was produced in the same manner as in Example 11. This laminated system is the same as the laminated body of Example 2. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. A sealant layer was formed with a 0.03 mm-thick easy-tear film for PP, and a laminate for a cover material was produced in the same manner as in Example 11. The obtained laminate is cut into a desired shape and size, thereby producing a lid material with a tongue for opening. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 11 except for the following points. That is, the sealing plate temperature at the time of heat sealing was 200 degreeC. Also, referring to (a) of Fig. 6, when performing heat sealing, in the case of a shaped container (2) with a flange portion (23) width of 7 mm, a sealing plate (10) with an outer diameter of 72.5 mm and an inner diameter of 66.5 mm is used. In the case of a shaped container (2) with a flange portion (23) width of 9 mm, a sealing plate (10) with an outer diameter of 74.5 mm and an inner diameter of 68.5 mm is used, thereby making the width of the formed sealing portion (HS) uniform. 3mm. Also, no slits are formed on the top surface of the flange portion (23). [Example 13]

以由A8021H-O材所構成的0.14mm厚的鋁箔形成阻隔層，以0.03mm厚的無延伸hPP膜形成保護層，以0.25mm厚的LLDPE膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。此積層體係與實施例3的積層體相同者。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 以0.03mm厚的聚丙烯（PP）基質共擠製多層膜（凝集破壞型）形成蓋材的密封層，此外以與實施例12相同的要領製作蓋材用積層體。所得之積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［實施例14］Form the barrier layer with a 0.14mm thick aluminum foil made of A8021H-O material, form a protective layer with a 0.03mm thick non-stretched hPP film, and form a sealing layer with a 0.25mm thick LLDPE film. In addition, use the same method as in Example 11 Essentials Fabrication of laminates for molded containers. This laminated system is the same as the laminated body of Example 3. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. A multilayer film (coagulation failure type) was co-extruded with a 0.03 mm thick polypropylene (PP) matrix to form the sealing layer of the cover material, and a laminate for the cover material was produced in the same manner as in Example 12. The obtained laminate is cut into a desired shape and size, thereby producing a lid material with an opening tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Example 14]

以由A1N30H-O材所構成的0.18mm厚的鋁箔形成阻隔層，以0.3mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。此積層體係與實施例4的積層體相同者。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［實施例15］A 0.18mm-thick aluminum foil made of AlN30H-O material was used to form the barrier layer, and a 0.3mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 11. This laminate system is the same as the laminate of Example 4. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Example 15]

以由A3003H-O材所構成的0.15mm厚的鋁箔形成阻隔層，以0.4mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［實施例16］A 0.15mm-thick aluminum foil made of A3003H-O material was used to form the barrier layer, and a 0.4mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 11. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Example 16]

以由A3003H-O材所構成的0.15mm厚的鋁箔形成阻隔層，以0.06mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［實施例17］A 0.15mm-thick aluminum foil made of A3003H-O material was used to form the barrier layer, and a 0.06mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 11. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Example 17]

以由A8021H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.04mm厚的CPP膜（rPP層（0.004mm）/bPP層（0.032mm）/rPP層（0.004mm））形成保護層，以0.1mm厚的LLDPE膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 以與實施例13相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［實施例18］The barrier layer is formed by a 0.08mm thick aluminum foil made of A8021H-O material, and a 0.04mm thick CPP film (rPP layer (0.004mm)/bPP layer (0.032mm)/rPP layer ( 0.004mm)) to form a protective layer, a 0.1mm thick LLDPE film was used to form a sealing layer, and in the same manner as in Example 11, a laminate for a molded container was produced. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The laminated body for lid material produced in the same manner as in Example 13 was cut into a desired shape and size, thereby fabricating a lid material with a tongue for opening. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Example 18]

以由A8021H-O材所構成的0.16mm厚的鋁箔形成阻隔層，以由T模法而來的0.2mm厚的CPP膜（rPP層（0.02mm）/bPP層（0.16mm）/rPP層（0.02mm））形成保護層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例11相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例11相同的要領製作包裝體（裝有水的容器）。 ［比較例11］The barrier layer is formed by a 0.16mm thick aluminum foil made of A8021H-O material, and a 0.2mm thick CPP film (rPP layer (0.02mm)/bPP layer (0.16mm)/rPP layer ( 0.02 mm)) to form a protective layer, and in the same manner as in Example 11, a laminate for molded containers was produced. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 11 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 11. [Comparative Example 11]

以由A8021H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以0.25mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［比較例12］A 0.08mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.25mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 11. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Comparative Example 12]

以由A8021H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.25mm厚的CPP膜（rPP層（0.025mm）/bPP層（0.2mm）/rPP層（0.025mm））形成保護層，以0.2mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［比較例13］The barrier layer is formed by a 0.08mm thick aluminum foil made of A8021H-O material, and a 0.25mm thick CPP film (rPP layer (0.025mm)/bPP layer (0.2mm)/rPP layer ( 0.025 mm)) to form a protective layer, a 0.2 mm thick non-stretched hPP film to form a sealing layer, and a laminate for a molded container was produced in the same manner as in Example 11. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Comparative Example 13]

以由A8021H-O材所構成的0.1mm厚的鋁箔形成阻隔層，以0.45mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。此積層體係與比較例5的積層體相同者。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［比較例14］A 0.1mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.45mm-thick non-stretched hPP film was used to form the sealing layer, and a laminate for a shaped container was produced in the same manner as in Example 11. This laminate system is the same as the laminate of Comparative Example 5. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Comparative Example 14]

以由A3003H-O材所構成的0.18mm厚的鋁箔形成阻隔層、而保護層及密封層皆係以由T模法而來的0.025mm厚的CPP膜（rPP層（0.0025mm）/bPP層（0.02mm）/rPP層（0.0025mm））形成，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［比較例15］The barrier layer is formed by 0.18mm thick aluminum foil made of A3003H-O material, and the protective layer and sealing layer are all made of 0.025mm thick CPP film (rPP layer (0.0025mm)/bPP layer (0.02mm)/rPP layer (0.0025mm)), and in the same manner as in Example 11, a laminate for molded containers was produced. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Comparative Example 15]

以由A3003H-O材所構成的0.3mm厚的鋁箔形成阻隔層，以由T模法而來的0.06mm厚的CPP膜（rPP層（0.006mm）/bPP層（0.048mm）/rPP層（0.006mm））形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［比較例16］The barrier layer is formed by a 0.3mm thick aluminum foil made of A3003H-O material, and a 0.06mm thick CPP film (rPP layer (0.006mm)/bPP layer (0.048mm)/rPP layer ( 0.006 mm)) to form a sealing layer, and in the same manner as in Example 11, a laminate for a molded container was produced. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Comparative Example 16]

以由A8021H-O材所構成的0.05mm厚的鋁箔形成阻隔層，以0.2mm厚的無延伸hPP膜形成密封層，此外以與實施例11相同的要領製作成形容器用積層體。此積層體係與比較例6的積層體相同者。使用由所得之積層體構成的毛坯，以與實施例11相同的要領製作成形容器。 將以與實施例12相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例12相同的要領製作包裝體（裝有水的容器）。 ［比較例17］A 0.05mm-thick aluminum foil made of A8021H-O material was used to form the barrier layer, and a 0.2mm-thick non-stretched hPP film was used to form the sealing layer. In addition, a laminate for molded containers was produced in the same manner as in Example 11. This laminate system is the same as the laminate of Comparative Example 6. A molded container was fabricated in the same manner as in Example 11 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 12 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 12. [Comparative Example 17]

以由A1N30H-O材所構成的0.08mm厚的鋁箔形成阻隔層，以由T模法而來的0.15mm厚的CPP膜（rPP層（0.015mm）/bPP層（0.12mm）/rPP層（0.015mm））形成保護層，以0.25mm厚的LLDPE膜形成密封層，此外以與實施例13相同的要領製作成形容器用積層體。使用由所得之積層體構成的毛坯，以與實施例13相同的要領製作成形容器。 將以與實施例13相同要領製作的蓋材用積層體裁切成所需之形狀及尺寸，藉此製作附開封用舌片的蓋材。 使用所得之成形容器及蓋材，以與實施例13相同的要領製作包裝體（裝有水的容器）。The barrier layer is formed by a 0.08mm thick aluminum foil made of A1N30H-O material, and a 0.15mm thick CPP film (rPP layer (0.015mm)/bPP layer (0.12mm)/rPP layer ( 0.015mm)) to form a protective layer, a 0.25mm thick LLDPE film was used to form a sealing layer, and a laminate for a molded container was produced in the same manner as in Example 13. A molded container was produced in the same manner as in Example 13 using the blank composed of the obtained laminate. The lid material laminate produced in the same manner as in Example 13 was cut into a desired shape and size to produce a lid material with an unsealing tongue. Using the obtained molded container and lid material, a package (container containing water) was produced in the same manner as in Example 13.

針對上述實施例11至18及比較例11至17的成形容器用積層體，將保護層、阻隔層、密封層各別的構成材料及厚度（μm）整理顯示於下表4。For the laminates for molded containers of Examples 11 to 18 and Comparative Examples 11 to 17, the respective constituent materials and thicknesses (μm) of the protective layer, barrier layer, and sealing layer are shown in Table 4 below.

［表4］ 成形容器用積層體 成形容器用積層體層構成各層的構成材料/厚度（μm）層構成各層的構成材料/厚度（μm）實施例11密封層共擠製膜300（PP/PE）250/HDPE50比較例11密封層CPP250（HPP）阻隔層AL120（A8021H-O）阻隔層AL80（A8021H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例12密封層CPP250（HPP）比較例12密封層CPP200（HPP）阻隔層AL100（A8021H-O）阻隔層AL80（A8021H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP250（rPP/bPP/rPP）實施例13密封層LLDPE250比較例13密封層CPP450（HPP）阻隔層AL140（A8021H-O）阻隔層AL100（A8021H-O）保護層CPP30（HPP）保護層CPP30（rPP/bPP/rPP）實施例14密封層CPP300（HPP）比較例14密封層CPP25（rPP/bPP/rPP）阻隔層AL180（A1N30H-O）阻隔層AL180（A3003H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP25（rPP/bPP/rPP）實施例15密封層CPP400（HPP）比較例15密封層CPP60（rPP/bPP/rPP）阻隔層AL150（A1N30H-O）阻隔層AL300（A3003H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例16密封層CPP60（HPP）比較例16密封層CPP200（HPP）阻隔層AL150（A3003H-O）阻隔層AL50（A8021H-O）保護層CPP30（rPP/bPP/rPP）保護層CPP30（rPP/bPP/rPP）實施例17密封層LLDPE100比較例17密封層LLDPE250阻隔層AL80（A8021H-O）阻隔層AL80（A1N30H-O）保護層CPP40（rPP/bPP/rPP）保護層CPP150（rPP/bPP/rPP）實施例18密封層共擠製膜300（PP/PE）250/HDPE50   阻隔層AL160（A8021H-O）   保護層CPP200（rPP/bPP/rPP）   ＜拉伸特性等＞[Table 4] Laminates for molded containers Laminates for molded containers layer composition Constituent material/thickness of each layer (μm) layer composition Constituent material/thickness of each layer (μm) Example 11 sealing layer Co-extruded film 300 (PP/PE) 250/HDPE50 Comparative Example 11 sealing layer CPP250 (HPP) barrier layer AL120 (A8021H-O) barrier layer AL80 (A8021H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 12 sealing layer CPP250 (HPP) Comparative Example 12 sealing layer CPP200 (HPP) barrier layer AL100 (A8021H-O) barrier layer AL80 (A8021H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP250 (rPP/bPP/rPP) Example 13 sealing layer LLDPE250 Comparative Example 13 sealing layer CPP450 (HPP) barrier layer AL140 (A8021H-O) barrier layer AL100 (A8021H-O) The protective layer CPP30 (HPP) The protective layer CPP30 (rPP/bPP/rPP) Example 14 sealing layer CPP300 (HPP) Comparative Example 14 sealing layer CPP25 (rPP/bPP/rPP) barrier layer AL180 (A1N30H-O) barrier layer AL180 (A3003H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP25 (rPP/bPP/rPP) Example 15 sealing layer CPP400 (HPP) Comparative Example 15 sealing layer CPP60 (rPP/bPP/rPP) barrier layer AL150 (A1N30H-O) barrier layer AL300 (A3003H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 16 sealing layer CPP60 (HPP) Comparative Example 16 sealing layer CPP200 (HPP) barrier layer AL150 (A3003H-O) barrier layer AL50 (A8021H-O) The protective layer CPP30 (rPP/bPP/rPP) The protective layer CPP30 (rPP/bPP/rPP) Example 17 sealing layer LLDPE100 Comparative Example 17 sealing layer LLDPE250 barrier layer AL80 (A8021H-O) barrier layer AL80 (A1N30H-O) The protective layer CPP40 (rPP/bPP/rPP) The protective layer CPP150 (rPP/bPP/rPP) Example 18 sealing layer Co-extruded film 300 (PP/PE) 250/HDPE50 barrier layer AL160 (A8021H-O) The protective layer CPP200 (rPP/bPP/rPP) ＜Tensile properties, etc.＞

針對實施例11至18及比較例11至17的積層體，下表5中顯示保護層、阻隔層、密封層的厚度（mm）：tA、tB、tC，並且顯示保護層、密封層的拉伸降伏強度（N/mm²）：σA、σC（MD、TD、45°方向的測量值及此等的平均值）、阻隔層的拉伸強度（N/mm²）：σB（MD、TD、45°方向的測量值及此等之相加平均值），進一步顯示tA×σA、tB×σB、tC×σC及（σA×tA+σC×tC）/（σB×tB）的計算值。For the laminates of Examples 11 to 18 and Comparative Examples 11 to 17, the thicknesses (mm) of the protective layer, barrier layer, and sealing layer are shown in Table 5 below: tA, tB, and tC, and the tensile strength of the protective layer and sealing layer are shown. Tensile yield strength (N/mm² ): σA, σC (measured values in MD, TD, 45° directions and their average value), tensile strength of barrier layer (N/mm² ): σB (MD, TD , the measured value in the 45° direction and the summed average of these), and further display the calculated values of tA×σA, tB×σB, tC×σC and (σA×tA+σC×tC)/(σB×tB).

［表5］ 保護層阻隔層密封層σAtA+ σBtB + σCtC拉伸降伏強度 σA（N/mm²）3方向的拉伸降伏強度厚度 tA（mm）σA x tA （N/m）拉伸降伏強度 σB（N/mm²）3方向的拉伸降伏強度厚度 tB（mm）σB x tB （N/m）拉伸降伏強度 σC（N/mm²）3方向的拉伸降伏強度厚度 tC（mm）σC x tC （N/m）測量方向（N/mm²）測量方向（N/mm²） （N/mm²）實施例1115.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.1211.07632.7MD TD 45°32.0 33.7 32.50.39.810.93實施例1215.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.19.2332.4MD TD 45°31.8 33.4 32.00.258.10.93實施例1332.4MD TD 45°31.8 33.4 32.00.030.97292.3MD TD 45°90.2 92.8 940.1412.92222.1MD TD 45°20.5 22.8 23.10.255.5250.50實施例1415.9MD TD 45°16.6 15.2 15.90.030.47778.3MD TD 45°76.8 78.4 80.30.1814.09432.4MD TD 45°31.8 33.4 32.00.39.720.72實施例1515.9MD TD 45°16.6 15.2 15.90.030.477108.3MD TD 45°105.7 108.6 110.60.1516.24532.4MD TD 45°31.8 33.4 32.00.412.960.83實施例1615.9MD TD 45°16.6 15.2 15.90.030.477108.3MD TD 45°105.7 108.6 110.60.1516.24532.4MD TD 45°31.8 33.4 32.00.061.9440.15實施例1715.9MD TD 45°16.6 15.2 15.90.040.63692.3MD TD 45°105.7 108.6 110.60.087.38422.1MD TD 45°20.5 22.8 23.10.12.210.39實施例1815.9MD TD 45°16.6 15.2 15.90.23.1892.3MD TD 45°105.7 108.6 110.60.1614.76832.7MD TD 45°32.0 33.7 32.50.39.810.88比較例1115.9MD TD 45°16.6 15.2 15.90.30.47792.3MD TD 45°90.2 92.8 940.087.38432.4MD TD 45°31.8 33.4 32.00.258.11.16比較例1215.9MD TD 45°16.6 15.2 15.90.253.97592.3MD TD 45°76.8 78.4 80.30.087.38432.4MD TD 45°31.8 33.4 32.00.26.481.42比較例1315.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.19.2332.4MD TD 45°31.8 33.4 32.00.4514.581.63比較例1415.9MD TD 45°16.6 15.2 15.90.0250.3975108.3MD TD 45°105.7 108.6 110.60.1819.49415.9MD TD 45°16.6 15.2 15.90.0250.39750.04比較例1515.9MD TD 45°16.6 15.2 15.90.030.477108.3MD TD 45°105.7 108.6 110.60.332.4915.9MD TD 45°16.6 15.2 15.90.060.9540.04比較例1615.9MD TD 45°16.6 15.2 15.90.030.47792.3MD TD 45°90.2 92.8 940.054.61532.4MD TD 45°31.8 33.4 32.00.26.481.51比較例1715.9MD TD 45°16.6 15.2 15.90.152.38578.3MD TD 45°76.8 78.4 80.30.086.26422.1MD TD 45°20.5 22.8 23.10.255.5251.26＜凸緣部之波折的評價＞[table 5] The protective layer barrier layer sealing layer σAtA + σBtB + σCtC Tensile yield strength σA (N/mm² ) Tensile yield strength in 3 directions Thickness tA (mm) σA x tA (N/m) Tensile yield strength σB (N/mm² ) Tensile yield strength in 3 directions Thickness tB (mm) σB x tB (N/m) Tensile yield strength σC (N/mm² ) Tensile yield strength in 3 directions Thickness tC (mm) σC x tC (N/m) Measurement direction (N/mm² ) Measurement direction (N/mm² ) (N/mm² ) Example 11 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.12 11.076 32.7 MD TD 45° 32.0 33.7 32.5 0.3 9.81 0.93 Example 12 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.1 9.23 32.4 MD TD 45° 31.8 33.4 32.0 0.25 8.1 0.93 Example 13 32.4 MD TD 45° 31.8 33.4 32.0 0.03 0.972 92.3 MD TD 45° 90.2 92.8 94 0.14 12.922 22.1 MD TD 45° 20.5 22.8 23.1 0.25 5.525 0.50 Example 14 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 78.3 MD TD 45° 76.8 78.4 80.3 0.18 14.094 32.4 MD TD 45° 31.8 33.4 32.0 0.3 9.72 0.72 Example 15 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.3 MD TD 45° 105.7 108.6 110.6 0.15 16.245 32.4 MD TD 45° 31.8 33.4 32.0 0.4 12.96 0.83 Example 16 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.3 MD TD 45° 105.7 108.6 110.6 0.15 16.245 32.4 MD TD 45° 31.8 33.4 32.0 0.06 1.944 0.15 Example 17 15.9 MD TD 45° 16.6 15.2 15.9 0.04 0.636 92.3 MD TD 45° 105.7 108.6 110.6 0.08 7.384 22.1 MD TD 45° 20.5 22.8 23.1 0.1 2.21 0.39 Example 18 15.9 MD TD 45° 16.6 15.2 15.9 0.2 3.18 92.3 MD TD 45° 105.7 108.6 110.6 0.16 14.768 32.7 MD TD 45° 32.0 33.7 32.5 0.3 9.81 0.88 Comparative Example 11 15.9 MD TD 45° 16.6 15.2 15.9 0.3 0.477 92.3 MD TD 45° 90.2 92.8 94 0.08 7.384 32.4 MD TD 45° 31.8 33.4 32.0 0.25 8.1 1.16 Comparative Example 12 15.9 MD TD 45° 16.6 15.2 15.9 0.25 3.975 92.3 MD TD 45° 76.8 78.4 80.3 0.08 7.384 32.4 MD TD 45° 31.8 33.4 32.0 0.2 6.48 1.42 Comparative Example 13 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.1 9.23 32.4 MD TD 45° 31.8 33.4 32.0 0.45 14.58 1.63 Comparative Example 14 15.9 MD TD 45° 16.6 15.2 15.9 0.025 0.3975 108.3 MD TD 45° 105.7 108.6 110.6 0.18 19.494 15.9 MD TD 45° 16.6 15.2 15.9 0.025 0.3975 0.04 Comparative Example 15 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 108.3 MD TD 45° 105.7 108.6 110.6 0.3 32.49 15.9 MD TD 45° 16.6 15.2 15.9 0.06 0.954 0.04 Comparative Example 16 15.9 MD TD 45° 16.6 15.2 15.9 0.03 0.477 92.3 MD TD 45° 90.2 92.8 94 0.05 4.615 32.4 MD TD 45° 31.8 33.4 32.0 0.2 6.48 1.51 Comparative Example 17 15.9 MD TD 45° 16.6 15.2 15.9 0.15 2.385 78.3 MD TD 45° 76.8 78.4 80.3 0.08 6.264 22.1 MD TD 45° 20.5 22.8 23.1 0.25 5.525 1.26 ＜Evaluation of the waviness of the flange part＞

如圖7所示，將由實施例11至18及比較例11至17的積層體成形而成的成形容器（2X）（凸緣部（23）寬度：7mm）及成形容器（2Y）（凸緣部（23）寬度：9mm）以開口朝下的方式載置於水平載置面（7）上。在此狀態下，選擇凸緣部（23）外周緣上的任意5點（等角度位置），測量各點中的成形容器（2X）（2Y）的高度（H1），算出5點中的高度（H1）之相加平均值。 另外，成形容器（2X）（2Y）的高度（H1）係以下述方是測量：將角棒狀的測量治具（8）以其一側面在俯視下與凸緣部（23）外周緣之各點重合的方式載置於倒置狀態的成形容器（2X）（2Y）之底壁部（21）底面，以卡尺（9）測量通過該各點的鉛直線上之載置面（7）與測量治具（8）底面的距離。As shown in Fig. 7, the molded container (2X) (flange part (23) width: 7 mm) and the molded container (2Y) (flange Part (23) width: 9 mm) is placed on the horizontal placement surface (7) with the opening facing downward. In this state, select any 5 points (equal angle positions) on the outer periphery of the flange portion (23), measure the height (H1) of the molded container (2X) (2Y) at each point, and calculate the height among the 5 points The summed average of (H1). In addition, the height (H1) of the forming container (2X) (2Y) is measured by the following method: the angle rod-shaped measuring jig (8) is placed between the outer periphery of the flange part (23) with one side thereof in a plan view. Place the points on the bottom of the bottom wall (21) of the upside-down shaped container (2X) (2Y) in such a way that the points overlap, and use a caliper (9) to measure the placement surface (7) and measurement on the vertical line passing through each point. The distance from the bottom surface of the jig (8).

根據所測量之各成形容器（2X）（2Y）的高度（H1）（相加平均值），以下述評價基準對於凸緣部（23）的波折程度進行評價，評價結果顯示於下表6。 〇：無波折（24.5mm≦H1（相加平均值）≦25.0mm） △：產生波折（25.0mm＜H1（相加平均值）≦25.5mm） ×：產生波折･程度大（25.5mm＜H1（相加平均值）） 另外，關於由比較例16的積層體成形而成的成形容器（2X）（2Y），在成形時發生斷裂，因此無法進行評價。 ＜密封性的評價＞Based on the measured height (H1) (summed average value) of each molded container (2X) (2Y), the degree of waviness of the flange portion ( 23 ) was evaluated according to the following evaluation criteria, and the evaluation results are shown in Table 6 below. 〇: No twists and turns (24.5mm≦H1 (summed average value)≦25.0mm) △: Waviness occurs (25.0mm<H1 (summed average value)≦25.5mm) ×: Waviness occurs and the degree is large (25.5mm<H1 (summed average value)) In addition, the molded containers (2X) and (2Y) molded from the laminate of Comparative Example 16 could not be evaluated because fracture occurred during molding. ＜Evaluation of airtightness＞

針對成形容器之凸緣部的寬度為7mm的各包裝體（比較例16除外），依據JIS Z0238:1998所規定的「容器的破裂強度試驗方法」進行密封性的試驗。亦即，以125℃、20分鐘的條件對於包裝體進行蒸煮處理後，在其蓋材的表面上貼附1mm厚的橡膠片。然後，從橡膠片上方刺入空氣針，以1.0±0.2公升/min的量將壓縮空氣送入包裝體內，以壓力計測量包裝體破裂時的最大壓力（容器內壓力）。針對各包裝體，分別以5個進行試驗。For each package (excluding Comparative Example 16) having a flange portion of a molded container having a width of 7 mm, a sealability test was performed in accordance with the "Test method for bursting strength of containers" prescribed in JIS Z0238:1998. That is, after retorting the package body at 125° C. for 20 minutes, a rubber sheet with a thickness of 1 mm was attached to the surface of the lid material. Then, pierce the air needle from above the rubber sheet, send compressed air into the package at an amount of 1.0±0.2 liters/min, and measure the maximum pressure (pressure inside the container) when the package breaks with a manometer. The test was performed with 5 packages for each package.

根據所測量之破裂時最大壓力（各包裝體5個相加平均值），以下述評價基準對於各包裝體的密封性進行評價，評價結果顯示於下表6。 〇：密封性良好（破裂時最大壓力≥40kPa） ×：密封性NG（破裂時最大壓力＜40kPa）Based on the measured maximum pressure at the time of rupture (the average value of 5 packages for each package), the airtightness of each package was evaluated according to the following evaluation criteria, and the evaluation results are shown in Table 6 below. 〇: Good sealing (maximum pressure at rupture ≥ 40kPa) ×: Sealing NG (maximum pressure at rupture <40kPa)

［表6］ 凸緣部波折評價密封性凸緣部的寬度（mm）破裂時最大壓力 （kPa）評價79實施例11〇〇61〇實施例12〇〇50〇實施例13〇〇53〇實施例14〇〇55〇實施例15〇〇55〇實施例16〇〇42〇實施例17〇〇45〇實施例18〇〇65〇比較例11△×34×比較例12××27×比較例13××35×比較例14〇〇21×比較例15〇〇25×比較例16發生成形破裂發生成形破裂－－－－比較例17××31×［產業上的可利用性］[Table 6] Flange waviness evaluation tightness Flange width (mm) Maximum pressure at rupture (kPa) evaluate 7 9 Example 11 〇 〇 61 〇 Example 12 〇 〇 50 〇 Example 13 〇 〇 53 〇 Example 14 〇 〇 55 〇 Example 15 〇 〇 55 〇 Example 16 〇 〇 42 〇 Example 17 〇 〇 45 〇 Example 18 〇 〇 65 〇 Comparative Example 11 △ x 34 x Comparative Example 12 x x 27 x Comparative Example 13 x x 35 x Comparative Example 14 〇 〇 twenty one x Comparative Example 15 〇 〇 25 x Comparative Example 16 forming fracture forming fracture -- -- Comparative Example 17 x x 31 x [Industrial availability]

本發明係一種積層體，適合用作高阻隔成形容器之材料以將作為內容物的食品、醫療藥品、電子零件等密封包裝；並且適合作為由該積層體成形而成的成形容器以及使用該成形容器將內容物密封包裝而成的包裝體。The present invention is a laminate suitable for use as a material for high-barrier shaped containers to hermetically package food, medical drugs, electronic parts, etc. as contents; A container is a packaging body in which the contents are hermetically packaged.

1:成形容器用積層體 10:毛坯 11:保護層 12:接著劑層 13:阻隔層 14:接著劑層 15:密封層 15X:密封層15之上側部分 2、2X、2Y:成形容器 21:底壁部 211:環狀階差 22:周壁部 221:環狀階差 23:凸緣部 231:切縫 3:蓋材 3a:舌片 31:保護層 32:阻隔層 33:密封層 33X:密封層33之下側部分 4:內容物 5:包裝體 6:沖壓成形裝置 61:下方模具 62:上方模具 62a:凹處 63:壓料板 64:彈簧 7:載置面 8:測量治具 9:卡尺 10:密封板 HS:密封部 H1:高度 P1:剝離開封位置 S1:距離 S2:距離 S3:距離 S4:距離 W1:凸緣部的寬度 W2:密封部的寬度1: Laminates for shaped containers 10: Blank 11: Protective layer 12: Adhesive layer 13: barrier layer 14: Adhesive layer 15: sealinglayer 15X: upper part of sealinglayer 15 2, 2X, 2Y: forming container 21: Bottom wall 211: Circular step difference 22: Peripheral wall 221: Circular step difference 23: Flange 231: Slit 3:Cover material 3a: tongue 31: protective layer 32: barrier layer 33: sealinglayer 33X: lower part of sealinglayer 33 4: Contents 5: Package body 6: Stamping forming device 61: Bottom mold 62:upper mold 62a: Recess 63: pressure plate 64: spring 7: Loading surface 8: Measuring fixture 9: Caliper 10: sealing plate HS:Sealing Department H1: height P1: Peel off the unsealing position S1: Distance S2: Distance S3: Distance S4: Distance W1: The width of the flange W2: Width of sealing part

圖1係顯示本發明的實施型態之成形容器用積層體之層構成的部分放大剖面圖。 圖2係顯示將該積層體成形而成之成形容器的實施型態的垂直剖面圖。 圖3係以步驟順序顯示該成形容器之成形方法的垂直剖面圖。 圖4係將內容物填入該成形容器並以蓋材將其密封而成的包裝體之整體立體圖。 圖5係顯示包裝體之密封結構的第一態樣，（a）係開封前之狀態的部分放大垂直剖面圖，（b）係開封後之狀態的部分放大垂直剖面圖。 圖6係顯示該包裝體之密封結構的第二態樣，（a）係開封前之狀態的部分放大垂直剖面圖，（b）係開封後之狀態的部分放大垂直剖面圖。 圖7係顯示實施例中測量用以評價凸緣部之波折的成形容器之高度的方法的概略正面圖。Fig. 1 is a partially enlarged cross-sectional view showing the layered structure of a laminate for molded containers according to an embodiment of the present invention. Fig. 2 is a vertical cross-sectional view showing an embodiment of a molded container obtained by molding the laminate. Fig. 3 is a vertical sectional view showing the forming method of the forming container in step order. Fig. 4 is an overall perspective view of a package in which contents are filled into the molded container and sealed with a lid. Fig. 5 shows the first aspect of the sealing structure of the package, (a) is a partially enlarged vertical sectional view of the state before unsealing, and (b) is a partially enlarged vertical sectional view of the state after unsealing. Fig. 6 shows the second aspect of the sealing structure of the package, (a) is a partially enlarged vertical sectional view of the state before unsealing, and (b) is a partially enlarged vertical sectional view of the state after unsealing. Fig. 7 is a schematic front view showing a method of measuring the height of a molded container for evaluating waviness of a flange portion in an example.

1:成形容器用積層體1: Laminates for shaped containers

11:保護層11: Protective layer

12:接著劑層12: Adhesive layer

13:阻隔層13: barrier layer

14:接著劑層14: Adhesive layer

15:密封層15: sealing layer

Claims (14)

Translated fromChinese

一種成形容器用積層體，用作在開口周緣具有凸緣部之杯狀成形容器的材料，其中， 從外側依序具有由合成樹脂所構成的保護層、由鋁箔所構成的阻隔層及由熱熔接性樹脂所構成的密封層；當 保護層的拉伸降伏強度：σA（N/mm²）； 保護層的厚度：tA（mm）； 阻隔層的拉伸強度：σB（N/mm²）； 阻隔層的厚度：tB（mm）； 密封層的拉伸降伏強度：σC（N/mm²）； 密封層的厚度：tC（mm）時，16≦σA×tA+σB×tB+σC×tC≦25。A laminate for molded containers used as a material for a cup-shaped molded container having a flange at the periphery of the opening, wherein a protective layer made of synthetic resin, a barrier layer made of aluminum foil, and a heat shield are sequentially provided from the outside. The sealing layer made of fusion resin; the tensile yield strength of the protective layer: σA (N/mm² ); the thickness of the protective layer: tA (mm); the tensile strength of the barrier layer: σB (N/mm² ) ; Thickness of barrier layer: tB (mm); Tensile yield strength of sealing layer: σC (N/mm² ); Thickness of sealing layer: tC (mm), 16≦σA×tA+σB×tB+σC× tC≦25.一種成形容器用積層體，用作在開口周緣具有凸緣部之杯狀成形容器的材料，其中， 從外側依序具有由合成樹脂所構成的保護層、由鋁箔所構成的阻隔層及由熱熔接性樹脂所構成的密封層；當 保護層的拉伸降伏強度：σA（N/mm²）； 保護層的厚度：tA（mm）； 阻隔層的拉伸強度：σB（N/mm²）； 阻隔層的厚度：tB（mm）； 密封層的拉伸降伏強度：σC（N/mm²）； 密封層的厚度：tC（mm）時，0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95。A laminate for molded containers used as a material for a cup-shaped molded container having a flange at the periphery of the opening, wherein a protective layer made of synthetic resin, a barrier layer made of aluminum foil, and a heat shield are sequentially provided from the outside. The sealing layer made of fusion resin; the tensile yield strength of the protective layer: σA (N/mm² ); the thickness of the protective layer: tA (mm); the tensile strength of the barrier layer: σB (N/mm² ) ; Thickness of barrier layer: tB (mm); Tensile yield strength of sealing layer: σC (N/mm² ); Thickness of sealing layer: tC (mm), 0.1≦(σA×tA+σC×tC)/ (σB×tB)≦0.95.一種成形容器用積層體，用作在開口周緣具有凸緣部之杯狀成形容器的材料，其中， 從外側依序具有由合成樹脂所構成的保護層、由鋁箔所構成的阻隔層及由熱熔接性樹脂所構成的密封層；當 保護層的拉伸降伏強度：σA（N/mm²）； 保護層的厚度：tA（mm）； 阻隔層的拉伸強度：σB（N/mm²）； 阻隔層的厚度：tB（mm）； 密封層的拉伸降伏強度：σC（N/mm²）； 密封層的厚度：tC（mm）時，16≦σA×tA+σB×tB+σC×tC≦25，並且0.1≦（σA×tA+σC×tC）/（σB×tB）≦0.95。A laminate for molded containers used as a material for a cup-shaped molded container having a flange at the periphery of the opening, wherein a protective layer made of synthetic resin, a barrier layer made of aluminum foil, and a heat shield are sequentially provided from the outside. The sealing layer made of fusion resin; the tensile yield strength of the protective layer: σA (N/mm² ); the thickness of the protective layer: tA (mm); the tensile strength of the barrier layer: σB (N/mm² ) ; Thickness of barrier layer: tB (mm); Tensile yield strength of sealing layer: σC (N/mm² ); Thickness of sealing layer: tC (mm), 16≦σA×tA+σB×tB+σC× tC≦25, and 0.1≦(σA×tA+σC×tC)/(σB×tB)≦0.95.如請求項1至3中任一項之成形容器用積層體，其中該密封層係由聚烯烴樹脂的單層膜或多層膜所構成，該密封層的厚度：tC為0.06至0.4mm。The laminate for shaped containers according to any one of claims 1 to 3, wherein the sealing layer is composed of a single-layer film or a multi-layer film of polyolefin resin, and the thickness of the sealing layer: tC is 0.06 to 0.4 mm.如請求項1至3中任一項之成形容器用積層體，其中該阻隔層的厚度：tB為0.06至0.18mm。The laminate for shaped containers according to any one of claims 1 to 3, wherein the thickness of the barrier layer: tB is 0.06 to 0.18 mm.如請求項1至3中任一項之成形容器用積層體，其中該保護層係由聚烯烴樹脂、聚酯樹脂、或聚醯胺樹脂的單層膜或多層膜所構成，該保護層的厚度：tA為0.03至0.2mm。The laminate for shaped containers according to any one of Claims 1 to 3, wherein the protective layer is made of polyolefin resin, polyester resin, or polyamide resin single-layer film or multilayer film, and the protective layer Thickness: tA is 0.03 to 0.2mm.一種成形容器，其係在開口周緣具有凸緣部之杯狀成形容器，其係以密封層為成形容器之內側的方式將如請求項1或3之成形容器用積層體成形為杯狀而成。A molded container, which is a cup-shaped molded container having a flange at the periphery of the opening, formed by molding the laminate for molded container according to claim 1 or 3 into a cup shape with the sealing layer on the inside of the molded container .如請求項7之成形容器，其中該凸緣部的寬度為3至20mm。The shaped container according to claim 7, wherein the width of the flange portion is 3 to 20 mm.一種成形容器，其係在開口周緣具有凸緣部之杯狀成形容器，其係以密封層為成形容器之內側的方式將如請求項2的成形容器用積層體成形為杯狀而成。A molded container is a cup-shaped molded container having a flange at the periphery of the opening, and is formed by molding the laminate for molded container according to claim 2 into a cup shape with a sealing layer inside the molded container.一種包裝體，其係將蓋材的底面周緣部熱熔接於填充有內容物的如請求項7之成形容器的凸緣部頂面而成。A packaging body, which is formed by heat-welding the bottom peripheral edge of the cover material to the top surface of the flange of the shaped container filled with contents according to claim 7.如請求項10之包裝體，其中該成形容器的該凸緣部頂面與該蓋材的該底面周緣部熱熔接而成的密封部之寬度為2至18mm。The packaging body according to claim 10, wherein the width of the sealing part formed by heat welding the top surface of the flange part of the shaped container and the peripheral part of the bottom surface of the cover material is 2 to 18 mm.如請求項10之包裝體，其在破裂時的最大壓力為40kPa以上。As in the packaging body of claim 10, the maximum pressure at the time of rupture is above 40 kPa.一種包裝體，其係將蓋材的底面周緣部熱熔接於填充有內容物的如請求項9之成形容器的凸緣部頂面而成。A packaging body, which is formed by heat-welding the bottom surface peripheral portion of the cover material to the top surface of the flange portion of the shaped container filled with contents as claimed in claim 9.如請求項13之包裝體，其在破裂時的最大壓力為40kPa以上。As in the packaging body of claim 13, the maximum pressure at the time of rupture is above 40 kPa.

Images