【０００１】[0001]
【発明の属する技術分野】本発明は、複合系塑性変形物
およびその製造方法に関するものであって、より詳しく
は、芯材を構成する塑性変形物に他の特性を有する熱可
塑性樹脂を組み合わせ、芯材の有する塑性変形性に加え
て、接着性や着色性などの特性を併せ持つ複合系塑性変
形物およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite plastic deformation product and a method for producing the same, and more particularly, to combining a plastic deformation product constituting a core with a thermoplastic resin having other properties. The present invention relates to a composite plastically deformed product having properties such as adhesiveness and coloring in addition to the plastically deformable property of a core material, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、折り曲げたり、捻じったりしても
元に戻らない塑性変形性を要求される結束材やネットに
は、針金や金網などの金属が使用される。しかしなが
ら、金属は錆びやすく硬いために、屋外での使用や食品
包装の用途には適したものとは言えない。また、これを
避けるため、金属を樹脂材や紙で覆ったものがあるが、
食品関連に使用した場合、食品関連包装の検査段階で行
われる金属探知機による異物混入検査に反応するから、
出荷前の最終段階での安全確認が出来なくなるという検
査段階での問題がある。2. Description of the Related Art Conventionally, a metal such as a wire or a wire net has been used for a binding material or a net that requires plastic deformation that does not return to its original state even when bent or twisted. However, metals are easily rusted and hard, and cannot be said to be suitable for outdoor use and food packaging applications. In order to avoid this, metal is covered with resin or paper.
When used in food-related applications, it reacts to the metal contamination detector's foreign substance contamination inspection performed during the food-related packaging inspection stage.
There is a problem in the inspection stage that safety confirmation cannot be performed in the final stage before shipment.
【０００３】このような背景から、ポリエチレンに塑性
変形性を付与した技術として、特開昭６１−２８２４１
６号公報、特開平２−２９３４０７号公報が知られてい
る。これらの公知例は、いずれも超高分子量のポリエチ
レンを特殊なスクリュー押出機にて溶融し、特定のＬ
（長さ）／Ｄ（径）比のダイから押し出し、徐冷して１
本の糸にし、この糸を特定の延伸比で延伸して、ポリエ
チレンに塑性変形性を付与するものである。[0003] Against this background, Japanese Patent Application Laid-Open No. 61-282241 discloses a technique for imparting plastic deformation to polyethylene.
No. 6, JP-A-2-293407 is known. In each of these known examples, ultra-high molecular weight polyethylene is melted by a special screw extruder, and a specific L
(Length) / D (diameter) ratio
The yarn is made into a book yarn, and the yarn is drawn at a specific drawing ratio to impart plastic deformation to polyethylene.
【０００４】また、超高分子量のポリエチレンに代え、
極限粘度［η］が３．５ｄｌ／ｇ未満の汎用ポリエチレ
ンを使用して、塑性変形性を付与したものとして、特開
平７−２３８４１７号公報が知られている。この公知例
は本出願人の出願にかかるもので、汎用ポリエチレンま
たはこの汎用ポリエチレンと他のポリオレフィンとを溶
融し押し出しスクリュー押出機にて溶融し、特定のＬ／
Ｄ比のダイから押し出し、徐冷して比較的太い（０．２
５ 以上）１本の糸にし、この糸を特定の延伸比で延伸
して、汎用ポリエチレンに塑性変形性を付与するもので
ある。[0004] In place of ultra-high molecular weight polyethylene,
Japanese Patent Application Laid-Open No. 7-238417 is known as a plastic having a plastic deformation property using a general-purpose polyethylene having an intrinsic viscosity [η] of less than 3.5 dl / g. This known example relates to the application of the present applicant, and a general-purpose polyethylene or this general-purpose polyethylene and another polyolefin are melted and melted by an extrusion screw extruder to obtain a specific L / L.
Extruded from a D ratio die, slowly cooled and relatively thick (0.2
5 or more) A single yarn is drawn at a specific draw ratio to impart plastic deformability to general-purpose polyethylene.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記特
開昭６１−２８２４１６号公報、特開平２−２９３４０
７号公報による公知例は、いずれも超高分子量のポリエ
チレンを用いるため、押出機自体が超高分子量のポリエ
チレン用であり、特殊なスクリューおよびダイを必要と
し、押出機１台から１本の延伸糸しか得られず、生産性
が低く汎用性に欠けるという問題がある。特に樹脂の特
殊性から、その延伸に時間がかかり、この面でも生産性
に欠けるから、安価な製品を得ることは出来ない。However, Japanese Patent Application Laid-Open No. 61-282416 and Japanese Patent Application Laid-Open No. 2-29340
In all of the known examples disclosed in Japanese Patent Publication No. 7, since an ultra-high molecular weight polyethylene is used, the extruder itself is for an ultra-high molecular weight polyethylene, a special screw and a die are required, and one extruder is used. There is a problem that only a yarn can be obtained, resulting in low productivity and lack of versatility. In particular, it takes a long time to stretch the resin due to the specialty of the resin, and in this aspect also lacks productivity, so that an inexpensive product cannot be obtained.
【０００６】また、本出願人の出願にかかる汎用ポリエ
チレンを用いるものは、従来のスクリューおよびダイを
使用出来、高生産性を達成し得て、安価な塑性変形物の
製品を得ることが出来るというメリットはあるものの、
この生産方式で得た塑性変形物はどの部分も均一組成で
あるため、この組成の塑性変形物の機能はそれ自体が有
するものに限定されるという制限を免れない。[0006] Further, those using general-purpose polyethylene according to the present applicant's application can use conventional screws and dies, achieve high productivity, and obtain inexpensive plastic deformed products. Despite the benefits,
Since the plastically deformed product obtained by this production method has a uniform composition in any part, the function of the plastically deformed product of this composition is unavoidable to be limited to what it has.
【０００７】また、ポリエチレンは、ポリマーの特性と
して他のポリマーとの接着性に劣り、着色性が十分でな
いなどの問題もある。それを補うために、この塑性変形
物が本来的に有する機能に無い他の機能を付与しようと
すると、塑性変形物に他の機能を有する樹脂等を付着さ
せる必要があるが、単なる付着操作によっては、塑性変
形性を保持したままで、上記他の特性を併せ持つ塑性変
形物を得ることは困難である。[0007] In addition, polyethylene has the problems of poor adhesion to other polymers and insufficient coloring properties as properties of the polymer. In order to compensate for this, if it is attempted to provide another function that is not originally provided by the plastic deformation product, it is necessary to attach a resin or the like having another function to the plastic deformation product. However, it is difficult to obtain a plastically deformed product having the above-mentioned other characteristics while maintaining plastic deformability.
【０００８】そこで、本発明の目的は、芯材を構成する
塑性変形物が本来有する特性はそのままで、その外面に
鞘材を形成することによって、両者の機能を併せ持つよ
うにした複合系塑性変形物およびその製造方法を提供す
ることにある。Accordingly, an object of the present invention is to provide a composite plastic deformation which has both functions by forming a sheath material on the outer surface thereof while maintaining the properties inherent in the plastic deformation constituting the core material. An object of the present invention is to provide a product and a method of manufacturing the same.
【０００９】[0009]
【課題を解決するための手段】本発明者らは、上記目的
を達成するため鋭意研究した結果、芯材として、ポリエ
チレンまたはポリエチレンと他のポリオレフィンとの混
合物の溶融押出物を用い、鞘材として、ポリエチレン以
外の機能を有する他の熱可塑性樹脂の溶融物を他方のオ
リフィスから押し出して、この芯−鞘構造から成る共押
出し物を徐冷した後所定倍率で延伸することにより、芯
材であるポリエチレンが有する塑性変形性を保持したま
まで、他の熱可塑性樹脂による機能、例えば他のポリマ
ーとの接着性や着色性を併せ持った塑性変形物が得られ
ることを見い出し、本発明を完成するに至った。Means for Solving the Problems The present inventors have conducted intensive studies to achieve the above object, and as a result, have used a melt extruded product of polyethylene or a mixture of polyethylene and another polyolefin as a core material and a sheath material as a sheath material. The core material is obtained by extruding a melt of another thermoplastic resin having a function other than polyethylene from the other orifice, gradually cooling the co-extruded product having the core-sheath structure, and then stretching it at a predetermined magnification. While retaining the plastic deformability of polyethylene, it was found that a plastic deformable material having the function of another thermoplastic resin, such as adhesion and coloring with other polymers, could be obtained, and to complete the present invention. Reached.
【００１０】すなわち、本発明によれば、ポリエチレン
または該ポリエチレンと他のポリオレフィンとの混合物
である第１成分と、該第１成分以外の熱可塑性樹脂を実
質的主成分とした第２成分との組み合わせからなり、前
記第１成分を芯材、第２成分を鞘材とする芯−鞘構造を
有する複合延伸物とし、該複合延伸物の塑性変形性は前
記複合延伸物の１８０度および９０度折り曲げによる戻
り角度が２０度以下であることを特徴とする複合系塑性
変形物が提供される。That is, according to the present invention, a first component, which is polyethylene or a mixture of the polyethylene and another polyolefin, and a second component having a thermoplastic resin other than the first component as a substantially main component. A composite stretched product having a core-sheath structure in which the first component is a core material and the second component is a sheath material, and the plastic stretchability of the composite stretched product is 180 ° and 90 ° of the composite stretched product. A composite plastic deformation product is provided, wherein a return angle due to bending is 20 degrees or less.
【００１１】また、本発明によれば、前記第１成分が、
極限粘度［η］３．５ｄｌ／ｇ未満の高密度ポリエチレ
ンである上記複合系塑性変形物が提供される。Further, according to the present invention, the first component comprises:
The above-mentioned composite plastic deformation product which is a high-density polyethylene having an intrinsic viscosity [η] of less than 3.5 dl / g is provided.
【００１２】また、本発明によれば、前記第２成分が、
第１成分と熱融着性を有するポリマーからなるものであ
って、芯材とした第１成分の表面を少なくとも５０％以
上覆うように構成された上記複合系塑性変形物が提供さ
れる。Further, according to the present invention, the second component comprises:
The present invention provides the above-mentioned composite plastic deformation product, which is made of a polymer having heat-fusibility with the first component, and is configured to cover at least 50% or more of the surface of the first component as a core material.
【００１３】また、本発明によれば、ポリエチレンまた
は該ポリエチレンと他のポリオレフィンとの混合物であ
る第１成分を溶融し一方のオリフィスから押し出し、こ
れに合わせて前記第１成分以外の熱可塑性樹脂を実質的
主成分とした第２成分を溶融し他方のオリフィスから押
し出して、前記第１成分を芯材、第２成分を鞘材とする
共押出物を、その状態で７ないし１６倍に延伸して塑性
変形性を付与して複合延伸物とし、該複合延伸物の塑性
変形性を前記複合延伸物の１８０度および９０度折り曲
げによる戻り角度を２０度以下にしたことを特徴とする
複合系塑性変形物の製造方法が提供される。According to the present invention, the first component, which is a polyethylene or a mixture of the polyethylene and another polyolefin, is melted and extruded from one of the orifices. The second component, which is substantially the main component, is melted and extruded from the other orifice, and the co-extrudate having the first component as the core material and the second component as the sheath material is stretched 7 to 16 times in that state. A composite stretched article having plastic deformability by imparting a plastic deformability to the composite stretched article, wherein the plastic deformability of the composite stretched article is set to a return angle of 20 degrees or less by bending the composite stretched article at 180 degrees and 90 degrees. A method for manufacturing a variant is provided.
【００１４】[0014]
【発明の実施の形態】本発明の塑性変形物の特徴は、芯
材がポリエチレンまたは該ポリエチレンと他のポリオレ
フィンとの混合物である第１成分からなり、鞘剤が第１
成分以外の熱可塑性樹脂を実質的主成分とした第２成分
との組み合わせからなる複合延伸物によって構成される
ことにある。BEST MODE FOR CARRYING OUT THE INVENTION The plastic deformation product of the present invention is characterized in that the core material is composed of the first component which is polyethylene or a mixture of the polyethylene and another polyolefin, and the sheath material is the first component.
It is constituted by a composite stretched product comprising a combination with a second component having a thermoplastic resin other than the component as a main component.
【００１５】芯材を構成する第１成分のポリエチレンと
しては、極限粘度［η］が３．５ｄｌ／ｇ未満、好まし
くは１．０ｄｌ／ｇないし３．５ｄｌ／ｇ未満のものが
用いられ、とくに高密度ポリエチレンが好ましく用いら
れる。極限粘度［η］が３．５ｄｌ／ｇ以上のポリエチ
レンでは、押出方法が制限され、押出機１台につき１本
の延伸物しか得られないか、更に製造工程が増加して生
産性が低下するので使用できない。前記第１成分のポリ
エチレン以外の他のポリオレフィンとしては、ポリプロ
ピレン、ポリブテン、ポリ−４メチルペンテン−１など
のオレフィンの単独ポリマー、あるいはこれに他のα−
オレフィンを共重合したオレフィン共重合体等が使用さ
れる。As the first component polyethylene constituting the core material, those having an intrinsic viscosity [η] of less than 3.5 dl / g, preferably 1.0 dl / g to less than 3.5 dl / g are used. High density polyethylene is preferably used. In the case of polyethylene having an intrinsic viscosity [η] of 3.5 dl / g or more, the extrusion method is limited, and only one stretched product can be obtained per one extruder, or the number of production steps increases and productivity decreases. Can not be used. Other polyolefins other than the first component polyethylene include olefin homopolymers such as polypropylene, polybutene, and poly-4-methylpentene-1, or other α-polymers.
An olefin copolymer obtained by copolymerizing an olefin is used.
【００１６】ポリエチレンが延伸されると引張応力に比
例して弾性変形し、それに応じて伸びが増大し降伏点に
達する。降伏点を越えると、引張応力は一旦低下したの
ち、ポリエチレンは塑性変形性を発現し始める。降伏点
以降は、延びが一旦低下したのち、内部歪みの極限に達
してポリエチレンは徐々に延び遂には白化して破断す
る。When the polyethylene is stretched, it is elastically deformed in proportion to the tensile stress, and the elongation increases accordingly to reach the yield point. Beyond the yield point, the polyethylene begins to develop plastic deformability once the tensile stress has dropped. After the yield point, the elongation once decreases, reaches the limit of the internal strain, and the polyethylene gradually elongates and finally whitens and breaks.
【００１７】このポリエチレンの白化は、各種無機充填
材を添加することによっても誘発され、これによって剪
断破壊を誘発し、塑性変形を容易にする。各種無機充填
材としては、ガラス繊維、タルク、マイカ、炭酸カルシ
ウム、水酸化マグネシウム、アルミナ、酸化亜鉛、酸化
マグネシウム、水酸化アルミニウム、シリカアルミナ、
酸化チタン、酸化カルシウム、珪酸カルシウム、塩基性
炭酸マグネシウム、炭素繊維、カーボンブラック等が例
示される。[0017] The whitening of polyethylene is also induced by the addition of various inorganic fillers, thereby inducing shear fracture and facilitating plastic deformation. Various inorganic fillers include glass fiber, talc, mica, calcium carbonate, magnesium hydroxide, alumina, zinc oxide, magnesium oxide, aluminum hydroxide, silica alumina,
Examples thereof include titanium oxide, calcium oxide, calcium silicate, basic magnesium carbonate, carbon fiber, and carbon black.
【００１８】前記第２成分は、共押出時に第１成分のポ
リエチレンと熱融着するポリマーであることが好まし
く、他のポリマーとの接着性を高めるため、あるいはポ
リエチレンではなし得ないような着色性を付与できると
いう点で、ＥＥＡ樹脂、エチレン−ビニルアルコール共
重合体、ビニルアクリレート重合体、ＥＡＡ樹脂、低密
度あるいは中密度ポリエチレン、ＥＰＴ等が例示され
る。The second component is preferably a polymer which is heat-fused with the polyethylene of the first component during coextrusion, so as to enhance the adhesion to other polymers or to provide a coloring property which cannot be achieved by polyethylene. In view of the fact that it can be imparted, EEA resin, ethylene-vinyl alcohol copolymer, vinyl acrylate polymer, EAA resin, low density or medium density polyethylene, EPT and the like are exemplified.
【００１９】前記第２成分として、ポリエチレンと熱融
着性を持たない重合体を用いる場合は、その中間に、両
者の中間の溶融特性を持つ重合体を接着層として介在さ
せて第１成分と第２成分との融着を達成することもでき
る。そのような重合体としては、アクリル樹脂やナイロ
ンが例示される。In the case where a polymer having no heat-fusing property with polyethylene is used as the second component, a polymer having a melting property intermediate between the two is interposed as an adhesive layer between the first component and the second component. Fusion with the second component can also be achieved. Examples of such a polymer include acrylic resin and nylon.
【００２０】ところで、本発明の複合系塑性変形物は、
基本的には、第１成分を押し出すオリフィスと、第２成
分を押し出すオリフィスとを有するダイを用いて、第１
成分および第２成分をそれぞれ押し出し、両者が芯−鞘
状態で延伸して塑性変形性を付与することによって得ら
れたものである。この複合延伸物の断面形状は円形、矩
形、円形と矩形との組み合わせ等、特に限定がない。ま
た、第１成分と第２成分とは、少なくとも両者が組み合
っていれば良く、必ずしも、全体が芯−鞘の構成をとら
なくてもよい。芯−鞘構造を取る場合は、第２成分は芯
材とした第１成分の表面を少なくとも５０％以上を覆え
ば良く、その割合は、その使用目的に応じて適宜決定さ
れる。Incidentally, the composite plastically deformed product of the present invention comprises:
Basically, using a die having an orifice that extrudes a first component and an orifice that extrudes a second component,
It is obtained by extruding the component and the second component, respectively, and stretching both in a core-sheath state to impart plastic deformability. The cross-sectional shape of the composite stretched product is not particularly limited, such as a circle, a rectangle, and a combination of a circle and a rectangle. Further, the first component and the second component only need to be combined with each other at least, and the entire component does not necessarily need to have a core-sheath configuration. When the core-sheath structure is adopted, the second component may cover at least 50% or more of the surface of the first component as the core material, and the ratio is appropriately determined according to the purpose of use.
【００２１】また、この複合延伸物の塑性変形性は、図
１、２に示すように、複合延伸物を１８０度および９０
度に折り曲げた時の１０分経過後の折曲戻り角度θで評
価する。この複合延伸物の折曲戻り角度θが２０度以下
であることを条件として、本発明の複合系塑性変形物は
提供される。したがって、折曲戻り角度θが２０度を越
える上記複合延伸物は、充分な塑性変形性、言い換えれ
ば充分な自在形状保持性が得られていないから、本発明
の複合系塑性変形物とならない。As shown in FIGS. 1 and 2, the plastic stretchability of the composite stretched product is 180 degrees and 90 degrees.
Evaluation is made based on the bending return angle θ 10 minutes after the bending. The composite plastic deformation product of the present invention is provided on condition that the bending return angle θ of the composite stretched product is 20 degrees or less. Therefore, the above-mentioned composite stretched product having a bending return angle θ of more than 20 degrees does not have sufficient plastic deformability, in other words, sufficient free shape retention, and thus does not become the composite plastic deformable product of the present invention.
【００２２】次に、本発明の複合系塑性変形物の製造方
法について説明する。本発明の複合系塑性変形物は、ポ
リエチレンまたは該ポリエチレンと他のポリオレフィン
との混合物である第１成分を溶融し一方のオリフィスか
ら押し出し、これに合わせて前記第１成分以外の熱可塑
性樹脂を実質的主成分とした第２成分を溶融し他方のオ
リフィスから押し出して、前記第１成分と第２成分とを
両者組み合わせ複合未延伸物とし、その複合未延伸物を
７ないし１６倍に延伸して塑性変形性を付与して複合延
伸物とし、該複合延伸物の塑性変形性を前記複合延伸物
の１８０度および９０度折り曲げによる戻り角度を２０
度以下にすることで、与えられる。Next, a method for producing a composite plastically deformed product of the present invention will be described. The composite plastic deformation product of the present invention melts the first component, which is polyethylene or a mixture of the polyethylene and another polyolefin, and extrudes it from one orifice, and according to this, substantially converts the thermoplastic resin other than the first component. The second component as a main component is melted and extruded from the other orifice to combine the first component and the second component into a composite unstretched product, and the composite unstretched product is stretched 7 to 16 times. A plastic stretch is given to the composite stretched product, and the plastic deformability of the composite stretched product is set at a return angle of 20 when the composite stretched product is bent by 180 degrees and 90 degrees.
Given below.
【００２３】本発明の複合系塑性変形物は、例えば、図
３に示すような製造装置により製造される。この製造装
置は、第１成分と第２成分とを押し出す押出装置１と、
押し出され組み合わされた第１成分と第２成分とからな
る複合未延伸物２を延伸し塑性変形性を付与する延伸装
置３と、更に複合延伸物をアニール処理するアニール装
置４と、製造された複合系塑性変形物５を巻き取る巻取
機６とからなる。The composite plastically deformed product of the present invention is manufactured by, for example, a manufacturing apparatus as shown in FIG. The manufacturing apparatus includes an extruder 1 for extruding a first component and a second component,
A stretching device 3 for stretching the composite unstretched material 2 composed of the extruded and combined first component and second component to impart plastic deformability, and an annealing device 4 for further annealing the composite stretched material; And a winding machine 6 for winding the composite plastic deformation product 5.
【００２４】この押出装置１は、複数本の未延伸状態の
溶融樹脂を冷却して、複合未延伸物２を得る冷却槽１０
を２台のスクリュウ型の押出機１１に併設してなり、２
台の押出機１１にアダプターを介して結合するダイ１２
は、前述の第１成分を押し出し芯部を形成する一方のオ
リフィスと、第２成分を押し出し鞘部を形成する他方の
オリフィスとを有し、第２成分が第１成分を連続的に被
覆して複合未延伸物２を得ることができるコンジュゲー
トダイを使用する。延伸装置３は、複合未延伸物２を引
き取る引取機１３の後に、複合未延伸物２を加熱する第
１加熱槽１４及び延伸する延伸機１５を有する。アニー
ル装置４は、複合延伸物を更に加熱する第２加熱槽１６
およびアニール処理するアニール機１７を有する。The extruder 1 cools a plurality of unstretched molten resins to obtain a composite unstretched product 2.
Are connected to two screw-type extruders 11, and 2
Die 12 which is connected to an extruder 11 via an adapter
Has one orifice for extruding the first component and forming a core portion and the other orifice for extruding a second component and forming a sheath portion, wherein the second component continuously covers the first component. A conjugate die capable of obtaining a composite unstretched product 2 by using the conjugate die is used. The stretching device 3 has a first heating tank 14 for heating the composite unstretched material 2 and a stretching machine 15 for stretching after a take-up machine 13 for taking the composite unstretched material 2. Annealing device 4 includes a second heating tank 16 for further heating the composite stretched product.
And an annealing machine 17 for performing an annealing process.
【００２５】そして、本発明の複合系塑性変形物５は、
上記製造装置により次のようにして製造される。一方の
押出機１１により加熱溶融状態の第１成分をコンジュゲ
ート型のダイ１２の一方のオリフィスから押し出し、他
方の押出機１１により加熱溶融状態の第２成分をダイ１
２の他方のオリフィスから押し出し、両成分を鞘芯型に
して、冷却槽１０にて冷却して複合未延伸物２とする。
この複合未延伸物２を延伸装置３の引取機１３により引
き取ると共に第１加熱槽１４に送り、複合未延伸物２を
６０ないし１２０°Ｃに加熱して、延伸機１５の速度調
節により７ないし１６倍に延伸して複合延伸物を得る。
更に、この複合延伸物をアニール装置４の第２加熱槽１
６に送り、複合延伸物を６０ないし１２０°Ｃに加熱し
て、アニール機１７の速度調節によりアニール処理して
本発明の複合系塑性変形物５を得る。なお、複合未延伸
物２の延伸は、２段に分けてもよい。この際、１段目の
延伸倍率と２段目の延伸倍率との比は、１段目：２段目
＝７５：２５ないし９５：５に設定すると良い。The composite plastic deformation product 5 of the present invention
It is manufactured as follows by the above manufacturing apparatus. One extruder 11 extrudes the first component in the heated and molten state from one orifice of the conjugate die 12, and the second extruder 11 converts the second component in the heated and molten state into the die 1.
2, extruded from the other orifice to make both components sheath-core type and cooled in a cooling tank 10 to obtain a composite unstretched product 2.
The composite unstretched material 2 is taken out by the take-off device 13 of the stretching device 3 and sent to the first heating tank 14, where the composite unstretched material 2 is heated to 60 to 120 ° C. It is stretched 16 times to obtain a composite stretched product.
Further, the composite stretched product is subjected to the second heating tank 1 of the annealing device 4.
6, the composite stretched product is heated to 60 to 120 ° C. and annealed by adjusting the speed of the annealing machine 17 to obtain the composite plastically deformed product 5 of the present invention. The stretching of the composite unstretched material 2 may be divided into two stages. At this time, the ratio of the first-stage stretching ratio to the second-stage stretching ratio is preferably set to 75:25 to 95: 5 for the first stage: the second stage.
【００２６】本発明の複合系塑性変形物５は、そのまま
単独で、あるいは同種材料または他の繊維、フィルム、
シート等の材料と組み合わせて、包装、果樹棚等の結束
材として、自在形状保持性が要求される織物、編み物と
して利用することが出来る。The composite plastically deformed product 5 of the present invention can be used alone as it is or with the same material or other fibers, films,
In combination with a material such as a sheet, it can be used as a binding material for packaging, fruit tree shelves, or the like, as a woven fabric or a knitted fabric requiring free shape retention.
【００２７】[0027]
【発明の効果】本発明によれば、塑性変形物が本来有す
る特性はそのままで、さらに他の機能を有するようにし
た複合系塑性変形物を得ることが出来、しかも汎用のポ
リエチレンを使用することが出来、従来の押出機も使用
できるから、高い生産性を保持出来、安価な複合系塑性
変形物を得ることが出来る。According to the present invention, it is possible to obtain a composite plastically deformed material having other functions while maintaining the inherent properties of the plastically deformed material, and to use general-purpose polyethylene. Since a conventional extruder can be used, high productivity can be maintained and an inexpensive composite plastic deformation product can be obtained.
【００２８】[0028]
【実施例】以下、本発明を実施例に基づいて説明する。
なお、これらの実施例は、本発明の好ましい一実施態様
を説明するためのものであり、これによって本発明が制
限されるものではない。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.
It should be noted that these examples are for describing a preferred embodiment of the present invention, and the present invention is not limited thereto.
【００２９】＜実施例１＞ （１）第１成分として、高密度ポリエチレン（東燃化学
社製 ポリエチレン Ｙ６０３１、ＭＦＲ ０．５）を
用い、第２成分として、ＥＥＡ樹脂（三井デュポンポリ
ケミカル社製 Ａ７１２、ＭＦＲ ８）を用いた。 （２）第１成分は、５５ｍｍφでＬ／Ｄ２６の緩圧縮型
スクリューの押出機により、コンジュゲートダイの一方
のオリフィスから押し出され芯部を形成する。第２成分
は、４０ｍｍφでＬ／Ｄ２４の緩圧縮型スクリューの押
出機により、コンジュゲートダイの他方のオリフィスか
ら押し出され鞘部を形成する。 （３）両押出機の設定温度は、Ｃ１−１９０℃、Ｃ２−
２３０℃、Ｃ３−２７０℃、ＡＤ−２８０℃、ダイスの
設定温度２８０℃とした。 （４）押出量は第１成分が２１ｋｇ／時間、第２成分が
９ｋｇ／時間とする。 （５）コンジュゲートダイから押し出された第１成分お
よび第２成分は７０℃のエチレングリコールの入った冷
却槽を経由して５．９ｍ／分の速さで複合未延伸糸とし
て引き取られ、９８℃の延伸装置で１３倍に延伸され複
合延伸糸とされた後、更に、９８℃のアニール装置で３
％アニールされ３０００ｄの複合系塑性変形糸が得られ
た。<Example 1> (1) A high-density polyethylene (polyethylene Y6031, MFR 0.5, manufactured by Tonen Chemical Co., Ltd.) was used as the first component, and an EEA resin (A712, manufactured by DuPont Mitsui Polychemicals, Inc.) was used as the second component. , MFR 8) was used. (2) The first component is extruded from one of the orifices of the conjugate die by a mild compression type screw extruder having a diameter of 55 mm and an L / D of 26 to form a core. The second component is extruded from the other orifice of the conjugate die by a 40 mmφ, L / D 24 moderate compression screw extruder to form a sheath. (3) The set temperatures of both extruders are C1-190 ° C, C2-
230 ° C, C3-270 ° C, AD-280 ° C, and the set temperature of the dice were 280 ° C. (4) The extrusion rate is 21 kg / hour for the first component and 9 kg / hour for the second component. (5) The first component and the second component extruded from the conjugate die are taken as a composite undrawn yarn at a speed of 5.9 m / min through a cooling bath containing ethylene glycol at 70 ° C., and 98 After being drawn 13 times by a drawing device at 13 ° C. to form a composite drawn yarn, the yarn is further reduced to 3% by an annealing device at 98 ° C.
% Annealed to obtain a 3000d composite plastically deformed yarn.
【００３０】＜実施例２＞押出量は第１成分が２４ｋｇ
／時間、第２成分が６ｋｇ／時間とし、これ以外は実施
例１と同様な条件で複合系塑性変形糸を得た。<Example 2> The extrusion amount was 24 kg for the first component.
/ H, the second component was 6 kg / h, and a composite plastically deformed yarn was obtained under the same conditions as in Example 1 except for this.
【００３１】＜実施例３＞押出量は第１成分が２７ｋｇ
／時間、第２成分が３ｋｇ／時間とし、これ以外は実施
例１と同様な条件で複合系塑性変形糸を得た。Example 3 The extrusion amount was 27 kg for the first component.
/ H, the second component was 3 kg / h, and a composite plastically deformed yarn was obtained under the same conditions as in Example 1 except for this.
【００３２】＜比較例＞押出量は第１成分が３０ｋｇ／
時間、第２成分が０ｋｇ／時間とし、これ以外は実施例
１と同様な条件で複合系塑性変形糸を得た。<Comparative Example> The extrusion rate of the first component was 30 kg /
A composite plastic deformed yarn was obtained under the same conditions as in Example 1 except that the time and the second component were 0 kg / hour.
【００３３】実施例１ないし３、比較例で得た複合系塑
性変形糸につき、引張強度（ｇ／ｄ）、伸度（％）、１
８０度折曲戻り角度、９０度折曲戻り角度、１２０℃接
着力（ｋｇ）、１６０℃接着力（ｋｇ）を測定した。接
着力は、１０ｃｍ長のモノフィラメント２本を直角に交
差させ、フィルムシーラーにてテフロンフィルムを介し
て、シール温度、１２０℃および１６０℃、シール圧２
Ｋｇ／ｃｍ2 、シール時間１秒で全面を圧着し接着させ
た後、引張り試験機にて両端をチャックして測定した値
（Ｋｇ）である。測定結果を表１に示す。With respect to the composite plastic deformed yarns obtained in Examples 1 to 3 and Comparative Example, tensile strength (g / d), elongation (%),
The 80-degree bending return angle, 90-degree bending return angle, 120 ° C. adhesive strength (kg), and 160 ° C. adhesive strength (kg) were measured. Adhesion force is obtained by crossing two 10 cm long monofilaments at right angles, using a film sealer through a Teflon film, sealing temperature, 120 ° C and 160 ° C, sealing pressure 2
It is a value (Kg) obtained by pressing and bonding the entire surface with Kg / cm2 at a sealing time of 1 second, and then chucking both ends with a tensile tester. Table 1 shows the measurement results.
【００３４】[0034]
【表１】[Table 1]
【００３５】更に、実施例１ないし３、比較例で得た複
合系塑性変形糸につき、１２０℃接着力および１６０℃
接着力における１０ 接着と同じ１２０℃および１６０
℃で各１分加熱処理したのち、１８０度折曲戻り角度お
よび９０度折曲戻り角度を測定した。この測定結果を表
２に示す。Further, the composite plastically deformed yarns obtained in Examples 1 to 3 and Comparative Example were subjected to an adhesive force of 120 ° C.
120 ° C and 160 same as 10 adhesion in adhesion
After each heat treatment at 1 ° C. for 1 minute, the 180-degree bending return angle and the 90-degree bending return angle were measured. Table 2 shows the measurement results.
【００３６】[0036]
【表２】[Table 2]
【００３７】表１、２によれば、実施例１ないし３は、
１２０℃および１６０℃での１分間加熱処理前と、加熱
処理後とも、１８０度折曲戻り角度および９０度折曲戻
り角度がほとんど変わらない。これに対して、比較例で
は１２０℃で接着せず、１６０℃接着力も弱く、加え
て、加熱処理前と、加熱処理後との１８０度折曲戻り角
度および９０度折曲戻り角度は、１２０℃（但し接着せ
ず）では変わらないが、１６０℃では６２度と３１倍に
上昇する。According to Tables 1 and 2, Examples 1 to 3
The 180-degree bending return angle and the 90-degree bending return angle hardly change before and after the heat treatment at 120 ° C. and 160 ° C. for 1 minute. On the other hand, in the comparative example, the adhesive was not bonded at 120 ° C. and the adhesive strength at 160 ° C. was weak. In addition, the 180-degree bending return angle and the 90-degree bending return angle before and after the heat treatment were 120 °. At 160 ° C., the temperature increases by 31 times, that is, 62 ° C.
【図１】本発明の複合系塑性変形物の１８０度折曲戻り
角度測定法を示す側面図である。FIG. 1 is a side view showing a method for measuring a 180-degree bent return angle of a composite plastically deformed product of the present invention.
【図２】本発明の複合系塑性変形物の９０度折曲戻り角
度測定法を示す側面図である。FIG. 2 is a side view showing a method of measuring a 90-degree bending return angle of a composite plastically deformed product of the present invention.
【図３】本発明の複合系塑性変形物の製造装置を示すフ
ロー図である。FIG. 3 is a flowchart showing an apparatus for producing a composite plastically deformed product of the present invention.
１ 押出装置 ２ 複合未延伸物 ３ 延伸装置 ４ アニール装置 ５ 複合系塑性変形物 ６ 巻取機 １０ 冷却槽 １１ 押出機 １２ ダイ １３ 引取機 １４ 第１加熱槽 １５ 延伸機 １６ 第２加熱槽 １７ アニール機 REFERENCE SIGNS LIST 1 Extruder 2 Composite unstretched material 3 Stretching device 4 Annealing device 5 Composite plastic deformed material 6 Winder 10 Cooling tank 11 Extruder 12 Die 13 Puller 14 First heating tank 15 Stretcher 16 Second heating tank 17 Annealing Machine
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ２９Ｌ 9:00──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl.6 Identification code FI B29L 9:00
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7145497AJP3814289B2 (en) | 1997-03-25 | 1997-03-25 | Binding material |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7145497AJP3814289B2 (en) | 1997-03-25 | 1997-03-25 | Binding material |
| Publication Number | Publication Date |
|---|---|
| JPH10266035Atrue JPH10266035A (en) | 1998-10-06 |
| JP3814289B2 JP3814289B2 (en) | 2006-08-23 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7145497AExpired - LifetimeJP3814289B2 (en) | 1997-03-25 | 1997-03-25 | Binding material |
| Country | Link |
|---|---|
| JP (1) | JP3814289B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008216637A (en)* | 2007-03-05 | 2008-09-18 | Sekisui Seikei Ltd | Pop stand |
| US7501178B2 (en) | 2003-05-30 | 2009-03-10 | Mitsui Chemicals Inc | Fiber for artificial hair |
| JP2009155755A (en)* | 2007-12-26 | 2009-07-16 | Sekisui Seikei Ltd | Woven polyolefin resin sheet |
| JP2012077434A (en)* | 2011-12-14 | 2012-04-19 | Sekisui Seikei Ltd | Woven polyolefin resin sheet |
| JP2024114560A (en)* | 2023-02-13 | 2024-08-23 | 青島瑞佳源紡織品有限公司 | Fibers with a membrane-core and parallel composite structure and their spun products |
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|---|---|---|---|---|
| JPS5841364U (en)* | 1981-09-14 | 1983-03-18 | 積水樹脂株式会社 | Synthetic resin binding cord |
| JPS6021908A (en)* | 1983-07-14 | 1985-02-04 | Chisso Corp | Manufacture of composite monofilament |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7501178B2 (en) | 2003-05-30 | 2009-03-10 | Mitsui Chemicals Inc | Fiber for artificial hair |
| JP2008216637A (en)* | 2007-03-05 | 2008-09-18 | Sekisui Seikei Ltd | Pop stand |
| JP2009155755A (en)* | 2007-12-26 | 2009-07-16 | Sekisui Seikei Ltd | Woven polyolefin resin sheet |
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| JP2024114560A (en)* | 2023-02-13 | 2024-08-23 | 青島瑞佳源紡織品有限公司 | Fibers with a membrane-core and parallel composite structure and their spun products |
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| JP3814289B2 (en) | 2006-08-23 |
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