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JPH07116306B2 - Medical liquid packaging material - Google Patents

Medical liquid packaging material

Info

Publication number
JPH07116306B2
JPH07116306B2JP19351786AJP19351786AJPH07116306B2JP H07116306 B2JPH07116306 B2JP H07116306B2JP 19351786 AJP19351786 AJP 19351786AJP 19351786 AJP19351786 AJP 19351786AJP H07116306 B2JPH07116306 B2JP H07116306B2
Authority
JP
Japan
Prior art keywords
packaging material
density polyethylene
ethylene
film
medical liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP19351786A
Other languages
Japanese (ja)
Other versions
JPS6351433A (en
Inventor
亨 高橋
政令 永田
勉 細井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zacros Corp
Original Assignee
Fujimori Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujimori Kogyo Co LtdfiledCriticalFujimori Kogyo Co Ltd
Priority to JP19351786ApriorityCriticalpatent/JPH07116306B2/en
Publication of JPS6351433ApublicationCriticalpatent/JPS6351433A/en
Publication of JPH07116306B2publicationCriticalpatent/JPH07116306B2/en
Anticipated expirationlegal-statusCritical
Expired - Fee Relatedlegal-statusCriticalCurrent

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Description

Translated fromJapanese

【発明の詳細な説明】 産業上の利用分野 この発明は、輸液等の医療用液体の包装材料に関する。TECHNICAL FIELD The present invention relates to a packaging material for medical liquids such as infusion solutions.

従来の技術 従来より、医療用の液体として輸液が多量に利用されて
いるが、この医療用液体の容器としては、瓶状の容器、
例えばガラス瓶、プラスチック・ブローボトルが知られ
てろい、また袋状容器としては、ポリ塩化ビニルやエチ
レン−酢酸ビニル共重合体フィルムを最内層に利用した
容器が知られている。
2. Description of the Related Art Conventionally, infusions have been used in large quantities as medical liquids, but as containers for this medical liquid, bottle-shaped containers,
For example, glass bottles and plastic blow bottles are known, and as bag-shaped containers, containers using polyvinyl chloride or ethylene-vinyl acetate copolymer film as the innermost layer are known.

発明が解決しようとする問題点 しかしながら、ガラス瓶においては、落下時の破壊、ガ
ラス中に含まれるアルカリ物質の輸液内への溶出等の問
題があり、また、ポリ塩化ビニルやエチレン−酢酸ビニ
ル共重合体を利用した容器においては、透明性が不足す
ると共に、レトルト等の高温殺菌に対する耐性が乏し
く、しかも低温時の可撓性に劣り、更にそれらの中に含
有する酸化防止剤、安定剤等の溶出分が内容品の輸液に
溶出したり、利用後の廃棄燃焼にあたり有害なガスを発
生したり、またこのような溶出物を防ぐために、電子線
で低分子量の重合体を重合させて安定化を図らなければ
ならない等の問題がある。更に、プラスチック・ブロー
ボトルにおいては、透明性が不足して輸液が透視確認で
きないほかに、病院内で輸液を適用するに際して針突刺
しによる院内感染の問題もあった。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, glass bottles have problems such as breakage at the time of dropping, elution of alkaline substances contained in glass into infusion solution, and polyvinyl chloride and ethylene-vinyl acetate copolymer In containers using coalescing, transparency is insufficient, resistance to high temperature sterilization such as retort is poor, and flexibility at low temperature is poor, and antioxidants, stabilizers, etc. contained therein are The eluate elutes in the infusion solution of the contents, generates harmful gas upon waste combustion after use, and stabilizes by polymerizing low molecular weight polymer with electron beam to prevent such eluate There is a problem such as that Further, in the plastic blow bottle, the transparency is insufficient and the transfusion cannot be seen through, and there is a problem of nosocomial infection due to needle stick when applying the transfusion in a hospital.

この発明は、上記実情に鑑みなされたもので、透明性に
優れかつ輸液等の医療用液体へ溶出する物質もなく、容
器として十分な特性、即ち、熱接着性、レトルト等の高
温札殺菌に対する耐熱性、低温時における柔軟性、耐衝
撃性などを与える医療用液体の包装材料を提供すること
を目的とする。
The present invention has been made in view of the above-mentioned circumstances, is excellent in transparency and does not dissolve into medical liquids such as infusions, and has sufficient properties as a container, that is, thermal adhesiveness, and high temperature tag sterilization such as retort. It is an object of the present invention to provide a packaging material for medical liquid which has heat resistance, flexibility at low temperature, impact resistance and the like.

問題点を解決するための手段及び作用 この発明の包装材料は、上記目的を達成するため、包装
材料の最内層に透明度80%以上の高密度ポリエチレン系
フィルムを利用したもので、特に高密度ポリエチレンに
対し、熱接着性と耐衝撃強度を付与するためのエチレン
−α・オレフィン共重合体と、耐衝撃性と低温時の可撓
性を改良するためのエチレン−α・オレフィン共重合低
結晶性エラストマーとを混合したフィルムを利用したも
のである。
Means and Actions for Solving Problems In order to achieve the above object, the packaging material of the present invention uses a high-density polyethylene-based film having a transparency of 80% or more as the innermost layer of the packaging material. On the other hand, ethylene-α / olefin copolymer for imparting thermal adhesiveness and impact strength, and ethylene-α / olefin copolymer for improving impact resistance and flexibility at low temperature have low crystallinity. It utilizes a film mixed with an elastomer.

即ち、本発明者らは、輸液等の医療用容器を構成するの
に好適な包装材料につき鋭意検討を行なった結果、JIS
−K−6714(積分球式光線透過率測定装置)で測定した
場合に80%以上の透過性を有する高密度ポリエチレン系
フィルムであって、特定割合で高密度ポリエチレンにエ
チレン−α・ポリフィン共重合体とエチレン−α・オレ
フィン共重合低結晶性エラストマーとを混合したフィル
ムを包装材料の最内層として形成した場合、この包装材
料は高密度ポリエシレンの耐熱性、エチレン−α・オレ
フィン共重合体のもつ熱接着性,耐衝撃性、エチレン−
α・オレフィン共重合低結晶性エラストマーのもつ耐衝
撃性,可撓性と併せ有するものであり、この包装材料を
用いて輸液等の医療用液体の包装袋形成した場合にレト
ルト等の高温熱処理にも耐え、しかも包装袋として十分
な落下衝撃強度を有し、かつ製袋時の熱接着性も優れて
いる上、内部に医療用液体を収容した場合、この液体に
溶出する物質もなく、また透明性が良いので、内部に収
容された輸液等の医療用液体を透視確認し得、従って医
療用液体の包装材料として優れた特性を有していること
を知見し、本発明をなすに至ったものである。
That is, the present inventors, as a result of earnestly studying a packaging material suitable for constituting a medical container for infusion and the like, JIS
A high-density polyethylene film having a transmittance of 80% or more when measured with a K-6714 (integrating sphere type light transmittance measuring device), wherein ethylene-α / polyfin copolymer weight is applied to high-density polyethylene at a specific ratio. When a film obtained by mixing the polymer and an ethylene-α-olefin copolymerized low crystalline elastomer is formed as the innermost layer of the packaging material, this packaging material has the heat resistance of high-density polyethylene and the ethylene-α-olefin copolymer has Thermal adhesion, impact resistance, ethylene-
It has the impact resistance and flexibility of α / olefin copolymer low crystalline elastomer, and when this packaging material is used to form a packaging bag for medical liquids such as infusions, it can be used for high temperature heat treatment such as retort. Also has sufficient drop impact strength as a packaging bag and excellent thermal adhesiveness during bag making, and when a medical liquid is stored inside, there is no substance that elutes into this liquid, and Since it has good transparency, it is possible to see through a medical liquid such as an infusion solution contained therein, and it was found that the liquid has excellent properties as a packaging material for the medical liquid. It is a thing.

以下、本発明につき図面を参照して更に詳しく説明す
る。
Hereinafter, the present invention will be described in more detail with reference to the drawings.

第1図及び第2図は、各々この発明の一実施例に係る包
装材料1を示すもので、第1図は、この発明の高密度ポ
リエチレン系フィルム2と他の基材3とを積層した複合
タイプの包装材料を示し、第2図は、この発明の高密度
ポリエチレン系フィルム2の単体フィルムによる包装材
料1を例示している。なお、第1図の包装材料におい
て、高密度ポリエチレン系フィルム2は包装袋を製造す
る場合、その最内層を構成するものである。
1 and 2 each show a packaging material 1 according to an embodiment of the present invention. In FIG. 1, a high-density polyethylene film 2 of the present invention and another substrate 3 are laminated. FIG. 2 shows a composite type packaging material, and FIG. 2 exemplifies the packaging material 1 made of a single film of the high-density polyethylene film 2 of the present invention. In the packaging material shown in FIG. 1, the high-density polyethylene film 2 constitutes the innermost layer of the packaging bag when it is manufactured.

この場合、この発明の高密度ポリエチレン系フィルムは
JIS−K−6714(積分球式光線透過率測定装置)によっ
て測定したときに80%以上、より好ましくは85%以上の
透明性を有していることが必要で、透明性が80%より低
いと内容物を目視観察し難くなる。
In this case, the high-density polyethylene film of this invention is
It must have a transparency of 80% or more, more preferably 85% or more when measured by JIS-K-6714 (integrating sphere type light transmittance measuring device), and the transparency is lower than 80%. And it becomes difficult to visually observe the contents.

この発明で用いる高密度ポリエチレン系フィルムは、高
密度ポリエチレンと、エチレン−α・オレフィン共重合
体と、エチレン−α・オレフィン共重合低結晶性エラス
トマーとの混合物である。ここで、この高密度ポリエチ
レン系フィルムにおいて、混合される高密度ポリエチレ
ンとしては密度0.945〜0.965のものが好ましく、またエ
チレン−α・オレフィン共重合体としては密度0.920〜
0.940の一般的な直鎖状低密度ポリエチレンが好まし
く、さらにエチレン−α・オレフィン共重合低結晶性エ
ラストマーとしては密度0.87〜0.89程度のエラストマー
を利用することが適当である。
The high-density polyethylene film used in the present invention is a mixture of high-density polyethylene, an ethylene-α-olefin copolymer, and an ethylene-α-olefin copolymer low crystalline elastomer. Here, in this high-density polyethylene-based film, as the high-density polyethylene to be mixed, those having a density of 0.945 to 0.965 are preferable, and as the ethylene-α / olefin copolymer, a density of 0.920 to
A general linear low-density polyethylene of 0.940 is preferable, and as the ethylene-α-olefin copolymerized low crystalline elastomer, it is suitable to use an elastomer having a density of about 0.87 to 0.89.

また、この高密度ポリエチレン系フィルムにおいて、混
合される高密度ポリエチレンとエチレン−α・オレフィ
ン共重合体とエチレン−α・オレフィン共重合低結晶性
エラストマーとの混合比率は、高密度ポリエチレン50〜
70重量部、エチレン−α・オレフィン共重合体10〜30重
量部、及びエチレン−α・オレフィン共重合低結晶性エ
ラストマー20〜40重量部の混合比率とするもので、エチ
レン−α・オレフィン共重合体の混合比率が多くなると
レトルト等の高温殺菌時の耐熱性が低下し、またこの混
合比率が少ないと包装材料の熱接着性が低下する。ま
た、エチレン−α・オレフィン共重合低結晶性エラスト
マーの混合比率が多くなると包装材料の熱接着性が低下
し、混合比率が少なくなると包装材料の可撓性が低下し
て、低温時の取扱性が悪くなる。
Further, in this high-density polyethylene-based film, the mixing ratio of the high-density polyethylene, the ethylene-α-olefin copolymer, and the ethylene-α-olefin copolymer low-crystalline elastomer to be mixed is 50-
70 parts by weight, 10 to 30 parts by weight of ethylene-α-olefin copolymer, and 20 to 40 parts by weight of ethylene-α-olefin copolymer low-crystalline elastomer are mixed, and ethylene-α-olefin copolymer If the mixing ratio of the coalescence is large, the heat resistance at the time of high temperature sterilization such as retort is deteriorated, and if the mixing ratio is small, the thermal adhesion of the packaging material is deteriorated. Further, when the mixing ratio of the ethylene-α / olefin copolymer low-crystalline elastomer is high, the thermal adhesiveness of the packaging material is low, and when the mixing ratio is low, the flexibility of the packaging material is low and the handling property at low temperature is low. Becomes worse.

なお、これら混合樹脂を製膜してフィルムにする場合
は、80%以上の透明性を確保するために、インフレーシ
ョン法で二段冷却して透明性を向上させることが望まし
い。
When a film is formed from these mixed resins, it is desirable to cool the film in two stages by an inflation method to improve the transparency in order to ensure a transparency of 80% or more.

本発明の包装材料は、第2図に示したように上述した高
密度ポリエチレン系フィルムの単層構成とすることもで
きるが、包装容器を製造した場合、強度、安全性等をよ
り高めるために第1図に示したように他の基材を適宜積
層した複合フィルムとして構成することもできる。この
場合、他の基材としては、ポリアミド、ポリエステル、
ポリプロピレン等の透明性のプラスチックが使用でき
る。なお、これら基材はその1種を単独で使用してもよ
く、2種以上を適宜順序で組合せ、積層してもよい。
The packaging material of the present invention may have a single-layer structure of the above-mentioned high-density polyethylene film as shown in FIG. 2, but in the case of producing a packaging container, in order to further enhance strength, safety, etc. As shown in FIG. 1, it is also possible to form a composite film by appropriately laminating other base materials. In this case, other base materials include polyamide, polyester,
Transparent plastics such as polypropylene can be used. In addition, these base materials may be used individually by 1 type, and may combine 2 or more types in a suitable order, and may be laminated | stacked.

本発明の包装材料において、高密度ポリエチレン系フィ
ルムの厚さは必ずしも制限されないが、40〜200μmと
することが好ましく、特に第2図の如き単層使用の場合
は80〜200μm、第1図の如き複合フィルムの場合は40
〜100μmとすることが好ましい。この場合、他の基材
の総厚さは30〜150μm、特に50〜100μmとすることが
好ましい。
In the packaging material of the present invention, the thickness of the high-density polyethylene-based film is not necessarily limited, but is preferably 40 to 200 μm, particularly 80 to 200 μm in the case of using a single layer as shown in FIG. 40 for composite films such as
It is preferable to set the thickness to 100 μm. In this case, the total thickness of the other base material is preferably 30 to 150 μm, particularly preferably 50 to 100 μm.

本発明の包装材料を用いて医療用液体の容器を製造する
場合、その製造法としては公知の方法が採用し得、例え
ば包装袋を製造する場合であれば、三方袋、ガセット袋
等に製袋し得る。
When a medical liquid container is manufactured using the packaging material of the present invention, a known method can be adopted as a manufacturing method thereof. For example, in the case of manufacturing a packaging bag, it is manufactured into a three-sided bag, a gusset bag or the like. Can be sacked.

この容器内に収容し得る医療用液体には特に制限はな
く、例えば輸液、栄養剤等が好適に収容される。
There is no particular limitation on the medical liquid that can be contained in this container, and for example, an infusion solution, a nutritional supplement, or the like is suitably contained.

次に、実施例を示し、この発明を具体的に説明するが、
この発明は下記の実施例に限定されるものではない。
Next, the present invention will be specifically described with reference to examples.
The present invention is not limited to the examples below.

実施例 高密度ポリエチレンとして三井石油化学製ハイゼックス
3300F、エチレン−α・オレフィン共重合体として住友
化学製FA102−O、エチレン−α・オレフィン共重合低
結晶性エラストマーとして三井石油化学製タフマーA408
5を使用し、これらを60:20:20の割合で混合し、インフ
レーション法により製膜し、これを強制冷却して厚さ80
μmのフィルムを得た。このフィルムの透明性はJIS−
K−6714(積分球式光線透過率測定装置)で測定した結
果、85%であった。
Example Hi-Zex manufactured by Mitsui Petrochemical as high-density polyethylene
3300F, FA102-O manufactured by Sumitomo Chemical as an ethylene-α-olefin copolymer, and Toughmer A408 manufactured by Mitsui Petrochemical as an ethylene-α-olefin copolymer low crystalline elastomer
5 was used, these were mixed in a ratio of 60:20:20, and a film was formed by an inflation method, which was forcibly cooled to a thickness of 80
A film of μm was obtained. The transparency of this film is JIS-
As a result of measurement by K-6714 (integrating sphere type light transmittance measuring device), it was 85%.

上記で得られたフィルム2層を中間層に20μm厚の2軸
延伸ナイロンを用いてそれぞれをポリエステルウレタン
系の接着剤により貼合し、3相構成の複合フィルムを得
た。この複合フィルムの透明性は80%で、この複合フィ
ルムを用いて製造した輸液包装体は充分目視に耐えるだ
けの透明性を有していた。
The two layers of the film obtained above were bonded to the intermediate layer using a 20 μm thick biaxially stretched nylon with a polyester urethane type adhesive to obtain a three-phase composite film. The transparency of this composite film was 80%, and the infusion solution package produced using this composite film had sufficient transparency to withstand visual observation.

発明の効果 以上説明したように、本発明の包装材料は医療用液体を
透視確認できる優れた透明性を有し、かつ医療用液体へ
の溶出物がない上、熱接着性、高温殺菌に対する耐熱
性、低温時における柔軟性、耐衝撃性を有し、医療用液
体を収容する包装容器製造用材料として優れたものであ
る。
EFFECTS OF THE INVENTION As described above, the packaging material of the present invention has excellent transparency that allows the medical liquid to be visually confirmed, and has no eluate to the medical liquid, and has thermal adhesiveness and heat resistance against high temperature sterilization. It has excellent properties, flexibility at low temperatures, and impact resistance, and is excellent as a material for producing a packaging container for containing a medical liquid.

【図面の簡単な説明】[Brief description of drawings]

第1図及び第2図はそれぞれ本発明の一実施例を示す断
面図である。 1……包装材料、 2……高密度ポリエチレン系フィルム、 3……他の基材。
1 and 2 are cross-sectional views showing an embodiment of the present invention. 1 ... Packaging material, 2 ... High-density polyethylene film, 3 ... Other base materials.

Claims (2)

Translated fromJapanese
【特許請求の範囲】[Claims]【請求項1】最内層がJIS−K−6714(積分球式光線透
過率測定装置)により測定した場合に80%以上の透明性
を有する高密度ポリエチレン系フィルムからなり、この
高密度ポリエチレン系フィルムが、高密度ポリエチレン
50〜70重量部と、エチレン−α・オレフィン共重合体10
〜30重量部と、エチレン−α・オレフィン共重合体低結
晶性エラストマー20〜40重量部との混合物であることを
特徴とする医療用液体の包装材料。
1. A high density polyethylene film having an innermost layer having a transparency of 80% or more when measured by JIS-K-6714 (integrating sphere type light transmittance measuring device). But high density polyethylene
50-70 parts by weight of ethylene-α / olefin copolymer 10
A packaging material for a medical liquid, which is a mixture of ˜30 parts by weight and 20 to 40 parts by weight of an ethylene-α · olefin copolymer low crystalline elastomer.
【請求項2】高密度ポリエチレン系フィルムに透明性プ
ラスチックを積層した特許請求の範囲第1項記載の医療
用液体の包装材料。
2. The packaging material for a medical liquid according to claim 1, wherein a transparent plastic is laminated on a high density polyethylene film.
JP19351786A1986-08-191986-08-19 Medical liquid packaging materialExpired - Fee RelatedJPH07116306B2 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP19351786AJPH07116306B2 (en)1986-08-191986-08-19 Medical liquid packaging material

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP19351786AJPH07116306B2 (en)1986-08-191986-08-19 Medical liquid packaging material

Publications (2)

Publication NumberPublication Date
JPS6351433A JPS6351433A (en)1988-03-04
JPH07116306B2true JPH07116306B2 (en)1995-12-13

Family

ID=16309382

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP19351786AExpired - Fee RelatedJPH07116306B2 (en)1986-08-191986-08-19 Medical liquid packaging material

Country Status (1)

CountryLink
JP (1)JPH07116306B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2000071400A (en)*1998-08-312000-03-07Toppan Printing Co Ltd Low elution packaging material and package using the same
CN117402421B (en)*2023-10-232024-05-31链行走新材料科技(广州)有限公司Temperature-resistant polyolefin material and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
ZA833923B (en)*1982-06-101985-01-30Bp Chem Int LtdThermoplastics film

Also Published As

Publication numberPublication date
JPS6351433A (en)1988-03-04

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