JPS61125844A - Tearable packaging material - Google Patents
Tearable packaging materialInfo
- Publication number
- JPS61125844A JPS61125844A JP59248398A JP24839884A JPS61125844A JP S61125844 A JPS61125844 A JP S61125844A JP 59248398 A JP59248398 A JP 59248398A JP 24839884 A JP24839884 A JP 24839884A JP S61125844 A JPS61125844 A JP S61125844A
- Authority
- JP
- Japan
- Prior art keywords
- film
- solvent
- vinyl acetate
- acetate copolymer
- packaging material
- 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.)
- Granted
Links
Landscapes
- Bag Frames (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は耐ガス透過性の優れた樹脂を含む積層材料で、
しかも引き裂きが容易な包装材料ｔ１詳細には耐ガス透
過性の優れた樹脂層としてエチレン−酢酸ビニル共重合
体ケン化物フィルムを用いた引き裂き容易な包装材料に
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a laminated material containing a resin with excellent gas permeation resistance,
Moreover, the packaging material t1 that is easy to tear specifically relates to an easy-to-tear packaging material using a saponified ethylene-vinyl acetate copolymer film as a resin layer with excellent gas permeability resistance.
中間層に未延伸エチレン−酢酸ビニル共重合体ケン化物
フィルムを積層フィルムで、外層がポリエステルフィル
ムまたはナイロンフィルム、内層がポリエチレンフィル
ムから成る場合は、外層と中間層間の接着強度が２００
〜１０００／１５ｅ＋１（１８０°剥離）と大きいので
、この積層フィルムの引裂性は、充分実用に適したもの
であった。When the intermediate layer is a laminated film of unstretched saponified ethylene-vinyl acetate copolymer film, the outer layer is a polyester film or nylon film, and the inner layer is a polyethylene film, the adhesive strength between the outer layer and the intermediate layer is 200.
Since the tear properties of this laminated film were as large as ~1000/15e+1 (180° peeling), they were sufficiently suitable for practical use.
しかし、外層が延伸ポリプロピレンフィルムの場合は、
外層の破壊が生じるため、外層と中間層の接着強度が２
０〜１５ｏｇ／ｌ ５１１１１！ｌ（１８０”剥離）と
小さいので、引裂時に外層と中間層間が剥離したり、中
間層と内層の深度や引裂性が異なるため、引裂性が不充
分であった。However, if the outer layer is a stretched polypropylene film,
Since the outer layer is destroyed, the adhesive strength between the outer layer and the middle layer is 2.
0~15og/l 51111! 1 (180" peeling), the outer layer and the intermediate layer peeled off during tearing, and the depth and tearability of the intermediate layer and the inner layer were different, resulting in insufficient tearability.
これは対処するため、本出願人は特願昭５８−９１２４
９号明［１１ｌにおいて、無延伸ポリプロピレンフィル
ムとエチレン−酢酸ビニル共重合体ケン化物の間に、末
端にイソシアネート基を有するポリエステル系またはポ
リエーテル系樹脂から成る無溶剤型接着剤ではその硬さ
やもろさに限界があり、この包装材料によっても充分引
裂性を向上させたとは言い難かった。In order to deal with this problem, the present applicant filed Japanese Patent Application No. 58-9124.
In No. 9 [11l], a solvent-free adhesive consisting of a polyester or polyether resin having an isocyanate group at the end is bonded between an unstretched polypropylene film and a saponified ethylene-vinyl acetate copolymer due to its hardness and brittleness. However, even with this packaging material, it was difficult to say that the tearability was sufficiently improved.
本発明は、延伸ポリプロピレンフィルムとエチレン−酢
酸ビニル共重合体ケン化物フィルムを含む包装材料であ
って、その引裂性を向上した包装材料を提供することを
目的とする。An object of the present invention is to provide a packaging material containing a stretched polypropylene film and a saponified ethylene-vinyl acetate copolymer film, which has improved tearability.
すなわち、上述の目的を達成するため、本発明は延伸ポ
リプロピレンフィルムから成る外層フィルムの内側に、
溶剤タイプの樹脂コーティング剤層及び末端にイソシア
ネート基を有するポリエステル系樹脂またはポリエーテ
ル系樹脂から成る無溶剤型接着剤層を介して、未延伸エ
チレン−酢酸ビニル共重合体ケン化物フィルムを積層し
て成る引き裂き容易な包装材料を提供する。That is, in order to achieve the above-mentioned object, the present invention provides an outer layer film made of a stretched polypropylene film;
A saponified unstretched ethylene-vinyl acetate copolymer film is laminated via a solvent-type resin coating layer and a solvent-free adhesive layer made of a polyester resin or polyether resin having an isocyanate group at the end. To provide a packaging material that is easy to tear.
以下、図面を参照して本発明を説明する。図面は本発明
の実施例を示し、第１図はその断面図である。The present invention will be described below with reference to the drawings. The drawings show an embodiment of the invention, and FIG. 1 is a sectional view thereof.
すなわち、第１図において、（１）は延伸ポリプロピレ
ンフィルムを示し、このフィルム（１）に印刷画像（２
）を施した面に溶剤型のコーティング剤（３）を塗布す
る。コーティング剤（３）はニトロセルロース、ウレタ
ン、塩素化ポリプロピレン、塩酢ビ樹脂、アクリル、塩
化ゴム等で良いが、硬く、もろい材料が好ましく、例え
ばショアー硬度で９０以上のものが好ましい。中でも末
端にイソシアネート元を有するポリエステル系又はポリ
エーテル系の溶剤タイプの樹脂コーティング剤が好まし
く、塗布量は１〜２μで良い。That is, in FIG. 1, (1) shows a stretched polypropylene film, and a printed image (2) is printed on this film (1).
) Apply a solvent-based coating agent (3) to the surface. The coating agent (3) may be nitrocellulose, urethane, chlorinated polypropylene, chlorinated vinyl acetate resin, acrylic, chlorinated rubber, etc., but is preferably a hard and brittle material, for example, one having a Shore hardness of 90 or more. Among them, a polyester or polyether solvent type resin coating agent having an isocyanate group at the end is preferable, and the coating amount may be 1 to 2 μm.
また、この上に塗布される接着剤（４）は無溶剤型の末
端にイソシアネート基を有するポリエステル系又はポリ
エーテル系の接着剤で、無溶剤型であることを除けば、
上述のコーティング剤（３）と同系統の樹脂であり、塗
布層は０．５〜２（１／ｌでい。In addition, the adhesive (4) applied on this is a solvent-free polyester or polyether adhesive having an isocyanate group at the end, and except that it is a solvent-free adhesive,
It is a resin of the same type as the above-mentioned coating agent (3), and the coating layer is 0.5 to 2 (1/l).
、：。□、−ヶ４ッ７１１Ｊ（３）お□□４．１につい
て説明すると、溶剤型の樹脂は一般にその皮膜が硬く、
かつもろいという特性を有する。無溶剤型の樹脂はこの
点において溶剤型の樹脂に劣るが、溶剤型の樹脂、特に
非タック性の樹脂を１〜２μコーテイングしても、エチ
レン−酢酸ビニル共重合体ケン化物フィルム（５）に対
して充分な接着力を持たないのに対し、無溶剤型の樹脂
は極めて強い接着力で接着する。, :. To explain □, -ga4 711J (3) □□4.1, solvent-based resins generally have a hard film;
It has the characteristics of being brittle. Solvent-free resins are inferior to solvent-based resins in this respect, but even when coated with 1 to 2μ of solvent-based resins, especially non-tacky resins, saponified ethylene-vinyl acetate copolymer film (5) On the other hand, solvent-free resins have extremely strong adhesive strength.
具体的にはポリプロピレンフィルム（１）に印刷して、
インキを乾燥し、この印刷面にコーティング剤（３）を
塗布し、加熱して溶剤を除去し、更に接着剤層（４）を
塗布し、エチレン−酢酸ビニル共重合体ケン化物フィル
ム（５）を貼り合わせ、コーティング剤（３）及び接着
剤（４）の硬化のためにエージングする。また接着剤（
４）とコーティング剤（３）はエチレン−酢酸ビニル共
重合体ケン化物フィルム（５）に塗布してこの上にポリ
プロピレンフィルムを積層しても良い。Specifically, it is printed on polypropylene film (1),
The ink is dried, a coating agent (3) is applied to the printed surface, the solvent is removed by heating, an adhesive layer (4) is applied, and an ethylene-vinyl acetate copolymer saponified film (5) is applied. are bonded together and aged to cure the coating agent (3) and adhesive (4). Also, adhesive (
4) and the coating agent (3) may be applied to the saponified ethylene-vinyl acetate copolymer film (5), and a polypropylene film may be laminated thereon.
なお、エチレン−酢酸ビニル共重合体ケン化物フィルム
（５）の上には更に別のフィルムが貼り合わせてあって
も良く、第１図では末端にイソシアネート基を有するポ
リエステル又はポリエーテル樹脂から成るアンカーコー
ト剤（６）を介してポリエチレンフィルム（７）及び静
電防止ポリエチレンフィルム（８）が貼り合わせである
。これらのフィルム（７）（８）は、ポリプロピレンフ
ィルム（１）とエチレン−酢酸ビニル共重合体ケン化物
フィルム（５）の貼り合わせの前にエチレン酢酸ビニル
共重合体ケン化物フィルム（５）に貼り合わせても良い
し、後で貼り合わせても良い。Note that another film may be laminated on top of the saponified ethylene-vinyl acetate copolymer film (5), and in FIG. 1, an anchor made of polyester or polyether resin having an isocyanate group at the terminal A polyethylene film (7) and an antistatic polyethylene film (8) are pasted together via a coating agent (6). These films (7) and (8) are attached to the saponified ethylene-vinyl acetate copolymer film (5) before laminating the polypropylene film (1) and the saponified ethylene-vinyl acetate copolymer film (5). You can match them together or paste them together later.
以下実施例により本発明を説明する。The present invention will be explained below with reference to Examples.
片面に東洋モートン−製ＢＨ３１２３（末端にイソシア
ネート基を有するポリエステル系又はポリエーテル系樹
脂）から成るアンカーコート剤を介してポリエチレンフ
ィルム及び静電防止ポリエチレンフィルムをエチレン−
酢酸ビニル共重合体ケン化物フィルムに積層した。A polyethylene film and an antistatic polyethylene film are coated with ethylene with an anchor coating agent made of BH3123 (polyester or polyether resin having an isocyanate group at the end) manufactured by Toyo Morton Co., Ltd. on one side.
It was laminated to a saponified vinyl acetate copolymer film.
一方、延伸ポリプロピレンフィルムに印刷を施し、この
印刷面に武田薬品■製Ａ−２０７１（溶剤タイプ−波型
の末端にイソシアネート基を有するポリエステル系また
はポリエーテル系樹脂コーティング剤）を１μ塗布し、
加熱して溶剤を除去した後、成田薬品■製Ａ−２７０（
無溶剤タイプの末端にイソシアネート基を有するポリエ
ステル系又はポリエーテル系樹脂接着剤）を塗布し、こ
の上に前記エチレン−酢酸ビニル共重合体ケン化物フィ
ルムを積層した。On the other hand, a stretched polypropylene film was printed, and 1μ of A-2071 (solvent type - polyester or polyether resin coating agent having an isocyanate group at the corrugated end) manufactured by Takeda Pharmaceutical was applied to the printed surface.
After heating to remove the solvent, use A-270 (made by Narita Pharmaceutical ■).
A solvent-free type polyester or polyether resin adhesive having an isocyanate group at the end was applied, and the saponified ethylene-vinyl acetate copolymer film was laminated thereon.
こうして得られた包装材料を用いて袋を作成し、カツオ
ブシを入れて密封シールした。なお、袋はポリプロピレ
ンフィルムを外側とした。この袋のシール部分に切り込
みを入れて■ノツチとし、この１ノツチから手で引き裂
いたところ、ポリプロピレンフィルムとエチレン酢酸ビ
ニル共重合体ケン化物フィルムが剥離することなく良好
に開封できた。A bag was made using the packaging material thus obtained, and the katsuobushi was put therein and hermetically sealed. The outside of the bag was made of polypropylene film. A notch was made in the sealed part of this bag, and when the bag was torn by hand from this one notch, the bag could be opened successfully without peeling of the polypropylene film and the saponified ethylene-vinyl acetate copolymer film.
なお、コーティング剤のショアー硬度は９２であった。The Shore hardness of the coating agent was 92.
（実施例２〕
コーティング剤として成田薬品■製Ｄ−２０４ＥＡ（末
端にイソシアネート基を有する溶剤型の一液型ポリエス
テル系又はポリエーテル系樹脂）を用いた外は実施例１
と同様に包装材料及び袋を作成し、引き裂き開封したと
ころ、ポリプロピレンフィルムとエチレン−酢酸ビニル
共重合体フィルムが剥離することな（良好に開封できた
。(Example 2) Example 1 except that D-204EA (solvent type one-component polyester or polyether resin having an isocyanate group at the end) manufactured by Narita Pharmaceutical ■ was used as the coating agent.
When a packaging material and a bag were prepared in the same manner as above and torn and opened, the polypropylene film and the ethylene-vinyl acetate copolymer film did not peel off (the bag could be opened successfully).
なお、コーティング剤は極めて硬く、しかももろく、そ
のそのショアー硬度は測定不能で、測定前に破壊されて
しまった。The coating agent was extremely hard and brittle, and its Shore hardness could not be measured, and it was destroyed before measurement.
図面は本発明の実施例を示し、第１図は包装材料の断面
図である。
（１）・・・ポリプロピレンフィルム
（２）・・・印刷画像 （３）コーティング剤（４）・
・・接着剤
（５）・・・エチレン−酢酸ビニル共重合体ケン化物フ
ィルム
（６）・・・アンカーコート剤The drawings show an embodiment of the invention, and FIG. 1 is a cross-sectional view of the packaging material. (1) Polypropylene film (2) Printed image (3) Coating agent (4)
... Adhesive (5) ... Ethylene-vinyl acetate copolymer saponified film (6) ... Anchor coating agent
Claims (1)
の内側に、溶剤タイプの樹脂コーティング剤層及び末端
にイソシアネート基を有するポリエステル系樹脂または
ポリエーテル系樹脂から成る無溶剤型接着剤層を介して
、未延伸エチレン−酢酸ビニル共重合体ケン化物フィル
ムを積層して成る引き裂き容易な包装材料。1) On the inside of the outer layer film made of a stretched polypropylene film, unstretched ethylene is applied via a solvent-type resin coating layer and a solvent-free adhesive layer made of a polyester resin or polyether resin having an isocyanate group at the end. - An easy-to-tear packaging material made of laminated vinyl acetate copolymer saponified film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59248398A JPS61125844A (en) | 1984-11-24 | 1984-11-24 | Tearable packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59248398A JPS61125844A (en) | 1984-11-24 | 1984-11-24 | Tearable packaging material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61125844A true JPS61125844A (en) | 1986-06-13 |
| JPH0441652B2 JPH0441652B2 (en) | 1992-07-09 |
Family
ID=17177510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59248398A Granted JPS61125844A (en) | 1984-11-24 | 1984-11-24 | Tearable packaging material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61125844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080331A1 (en) * | 2002-03-26 | 2003-10-02 | Kurita Water Industries Ltd. | Packaging material, flexible container, method of forming flexible container, method of enclosing liquid in flexible container and liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724217A (en) * | 1980-07-21 | 1982-02-08 | Toppan Printing Co Ltd | Manufacture of laminated film |
| JPS57189846U (en) * | 1981-05-29 | 1982-12-02 |
-
1984
- 1984-11-24 JP JP59248398A patent/JPS61125844A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724217A (en) * | 1980-07-21 | 1982-02-08 | Toppan Printing Co Ltd | Manufacture of laminated film |
| JPS57189846U (en) * | 1981-05-29 | 1982-12-02 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080331A1 (en) * | 2002-03-26 | 2003-10-02 | Kurita Water Industries Ltd. | Packaging material, flexible container, method of forming flexible container, method of enclosing liquid in flexible container and liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441652B2 (en) | 1992-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |