JPH02158341A - Multilayer film - Google Patents
Multilayer filmInfo
- Publication number
- JPH02158341A JPH02158341A JP31296188A JP31296188A JPH02158341A JP H02158341 A JPH02158341 A JP H02158341A JP 31296188 A JP31296188 A JP 31296188A JP 31296188 A JP31296188 A JP 31296188A JP H02158341 A JPH02158341 A JP H02158341A
- Authority
- JP
- Japan
- Prior art keywords
- copolymer
- layer
- polyolefin resin
- film
- resin
- 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.)
- Pending
Links
- 229920001577 copolymer Polymers 0.000 claims abstract description 21
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 19
- 239000004840 adhesive resin Substances 0.000 claims abstract description 5
- 229920006223 adhesive resin Polymers 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 2
- 239000010410 layer Substances 0.000 description 15
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、柔軟性及びガスバリア性に優れ、且つフィル
ム同士のブロッキング現象がなく、内容物がフィルム内
面に付着することなく、円滑に充填、排出可能な排泄物
収納袋用多層フィルムに関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention has excellent flexibility and gas barrier properties, and there is no blocking phenomenon between films, and the contents can be filled smoothly without adhering to the inner surface of the film. The present invention relates to a multilayer film for excrement storage bags that can be discharged.
従来から、ポリオレフィン系樹脂又はその共重合体をポ
リ塩化ビニリデン樹脂の両側に積層することは特公昭５
１−４１６６７号公報に開示されており公知となってい
る。Conventionally, the lamination of polyolefin resin or its copolymer on both sides of polyvinylidene chloride resin has been known since 1983.
It is disclosed in Japanese Patent No. 1-41667 and is well known.
その後塩化ビニリデン樹脂と、ポリオレフィン系樹脂等
の層間接着力を改善したり（例えば、特開昭５７−６７
６３号公報）、塩化ビニリデン樹脂のガスバリア性を改
善するために両側にエチレン・酢酸ビニル共重合体等を
積層し、塩化ビニリデン樹脂に含まれる可塑剤を吸収す
る例がみられる。Afterwards, the interlayer adhesion between vinylidene chloride resin and polyolefin resin was improved (for example, in JP-A-57-67
No. 63), there is an example in which an ethylene/vinyl acetate copolymer or the like is laminated on both sides to absorb the plasticizer contained in the vinylidene chloride resin in order to improve the gas barrier properties of the vinylidene chloride resin.
（例えば、特開昭５２−５４７７１奇公報）さらには、
塩化ビニリデンを中間層とし、両側にエチレン・酢酸ビ
ニル共重合体や、ポリオレフィン系樹脂等を積層し、さ
らに延伸加工した収縮フィルムの例がみられる。（例え
ば、特開昭５８−１２８８５４号公報）
排泄物収納袋は使用上柔軟性に冨むのが望ましいが、柔
軟性とフィルム同士のアンチブロッキング性及び充填、
排泄時の排泄物とフィルムの滑り性は相反するものであ
り、従来の単層及び多層フィルムでは満足できるものが
なかった。(For example, Japanese Unexamined Patent Publication No. 52-54771) Furthermore,
There are examples of shrink films in which vinylidene chloride is used as an intermediate layer, ethylene/vinyl acetate copolymer, polyolefin resin, etc. are laminated on both sides, and the film is further stretched. (For example, Japanese Patent Application Laid-Open No. 128854/1983) It is desirable for excrement storage bags to be flexible in use, but flexibility, anti-blocking properties between films, filling,
Excrement during excretion and the slipperiness of the film are contradictory, and conventional single-layer and multi-layer films have not been satisfactory.
本発明の目的とするところは優れた柔軟性と同時に、排
泄物収納袋として使用した場合のフィルム同士のブロン
キングのない−、取り扱い易さや内容物特に粘稠な排泄
物充填、排出時の円滑性やフィルムへの付着のない性能
を兼ね備えた多層フィルムを提供するにある。The purpose of the present invention is to provide excellent flexibility, eliminate bronzing between films when used as an excrement storage bag, ease of handling, and smooth filling and discharging of contents, especially viscous excrement. The purpose of the present invention is to provide a multilayer film that has both properties such as durability and non-adhesion to the film.
本発明はステエンボス（ＡＳＴＭ Ｄ７４７） （以下
ＡＳＴＭＤ７４７は省略する）が７５０〜５０００ｋｇ
／ｃ＋ｆｌのポリオレフィン系樹脂及び／又はその共重
合体からなる層（Ａ）、ステエンボスが１００〜５００
ｋｇ／ｃＴＡのポリオレフィン系樹脂の共重合体及び／
又はポリオレフィン系樹脂又はその共重合体をベースと
するステエンボスが１００〜５００ｋｇ／ｃｍ２の酸変
性接着性樹脂の層（Ｂ）、さらに塩化ビニリデン共重合
体の層（Ｃ）が（八）−（Ｂ）−（Ｃ）−（Ｂ）−（Ａ
）の順で構成されることを特徴とする多層フィルムであ
る。The present invention applies to Steenbosch (ASTM D747) (hereinafter ASTM D747 is omitted) of 750 to 5000 kg.
/c+fl layer (A) consisting of polyolefin resin and/or copolymer thereof, Steenboss is 100 to 500
kg/cTA polyolefin resin copolymer and/or
Or a layer (B) of an acid-modified adhesive resin based on a polyolefin resin or a copolymer thereof and having an embossing weight of 100 to 500 kg/cm2, and a layer (C) of a vinylidene chloride copolymer (8)-( B)-(C)-(B)-(A
) is a multilayer film characterized by being constructed in the following order.
本発明の多層フィルムの層（Ａ）に用いられるポリオレ
フィン系樹脂及び／又はその共重合体はステエンボス７
５０〜５０００ｋｇ／ｃ＋ｆｌのものである。ステエン
ボスを記載の範囲に限定した理由はフィルムの加工及び
袋状の製品でのフィルム同士のブロッキングを防止する
ためである。よって、ステエンボスが１５ｆ）ｋｇ／ｃ
４以下では、フィルム表面が非常にブロッキングじやす
くなり使用上支障をきたす。ステエンボスが５０００ｋ
ｇ／ｃｉ以上では、フィルムの腰が強くなりすぎる。The polyolefin resin and/or its copolymer used in the layer (A) of the multilayer film of the present invention is Steenbosch 7
50 to 5000 kg/c+fl. The reason why Steen Bosch is limited to the range described is to prevent film processing and blocking between films in bag-shaped products. Therefore, Steenbosch is 15f) kg/c
If it is less than 4, the surface of the film becomes very susceptible to blocking, causing problems in use. Steenbosch is 5000k
If it exceeds g/ci, the film becomes too stiff.
又、層（Ｂ）は層（Ａ）と層（Ｃ）の接着層であると同
時にフィルム全体の腰の強さを調整する機能をも′つも
のである。Further, layer (B) serves as an adhesive layer between layer (A) and layer (C), and at the same time has the function of adjusting the stiffness of the entire film.
そのため、層（Ｂ）に用いられる樹脂は、ステエンボス
が１００〜５００ｋｇ／ｃｔｌｌの範囲のものであり、
１００ｋｇ／ｃｔｆｌ以下では、フィルム押出加工時の
外観不良やフィルムの機械強度の低下を招く。一方、ス
テエンボスが５００ｋｇ／ｃｄ以上ではフィルムの腰が
強くなり優れた柔軟性が得られず製品にならない。柔軟
性及び層（Ａ）との接着性からみてポリオレフィン系樹
脂の共重合体がエチレン・酢酸ビニル共重合体であるの
が好ましい。Therefore, the resin used for layer (B) has a Steenboss of 100 to 500 kg/ctll,
If it is less than 100 kg/ctfl, it will cause poor appearance during film extrusion processing and a decrease in the mechanical strength of the film. On the other hand, if the emboss weight exceeds 500 kg/cd, the film becomes stiff and cannot be used as a product because excellent flexibility cannot be obtained. In view of flexibility and adhesion to layer (A), it is preferable that the polyolefin resin copolymer is an ethylene/vinyl acetate copolymer.
本発明を図でさらに説明する。第１図は本発明の多層フ
ィルムの断面図であり１と１′は層（Ａ）でポリオレフ
ィン系樹脂及び／又はその共重合体で構成される。１及
び１′は同一樹脂でも異なる樹脂でも良い。The invention will be further explained with the aid of figures. FIG. 1 is a sectional view of the multilayer film of the present invention, and layers 1 and 1' are layers (A) made of polyolefin resin and/or a copolymer thereof. 1 and 1' may be the same resin or different resins.
２と２′は層（Ｂ）であり、ポリオレフィン系樹脂の共
重合体及び／又はポリオレフィン系樹脂又はその共重合
体をベースとする酸変性接着性樹脂で構成され、２及び
２′は同一樹脂でも異なる樹脂でも良い。ただし、２は
１と３に接着性を有すること、又２′は１′と３に接着
性を有することが必要である。2 and 2' are layers (B), which are composed of a polyolefin resin copolymer and/or an acid-modified adhesive resin based on a polyolefin resin or a copolymer thereof, and 2 and 2' are the same resin. However, a different resin may also be used. However, 2 must have adhesive properties to 1 and 3, and 2' must have adhesive properties to 1' and 3.
３は層（Ｃ）であり塩化ビニリデン共重合体で構成され
ガスバリア性を付与している。Layer 3 (C) is made of vinylidene chloride copolymer and provides gas barrier properties.
さらに、本発明によるフィルムは共押出法、ドライラミ
ネート法でも可能であるが、柔軟性からみて共押出法が
好ましい。Furthermore, although the film according to the present invention can be produced by coextrusion or dry lamination, the coextrusion method is preferred from the viewpoint of flexibility.
さらに用途によってはフィルム表面にエンボス加工を施
すことも可能である。Furthermore, depending on the application, it is also possible to emboss the film surface.
表−１に示した樹脂を使用し、共押出成形により表−２
に示した構成の如く各実施例、比較例の多層フィルムを
作成し、性能を評価し、その結果を表−２に示した。Table 2 is produced by coextrusion using the resin shown in Table 1.
Multilayer films of each Example and Comparative Example were prepared with the configurations shown in , and their performances were evaluated, and the results are shown in Table 2.
表−１
〔発明の効果〕
本発明のフィルムは、柔軟性、ガスバリア性に優れてお
り且つ従来のフィルムの様に排泄物収納袋の用途でブロ
ンキングして使用時に不具合いを生じることもなく又、
内容物の充填や排出の際もフィルム内面が滑りやすく、
付着して汚れることがないので簡単に取扱うことが可能
となり気持ちよく使うことができるようになった。Table 1 [Effects of the Invention] The film of the present invention has excellent flexibility and gas barrier properties, and unlike conventional films, it does not cause problems during use due to bronching when used in excrement storage bags. or,
The inner surface of the film is slippery when filling and discharging the contents.
Since it does not get dirty due to adhesion, it can be handled easily and can be used comfortably.
第１図は本発明の多層フィルムの断面図である。 FIG. 1 is a cross-sectional view of the multilayer film of the present invention.
Claims (1)
０００ｋｇ／ｃｍ＾２のポリオレフィン系樹脂及び／又
はその共重合体からなる層（Ａ）、スティフネス（ＡＳ
ＴＭＤ７４７）が１００〜５００ｋｇ／ｃｍ＾２のポリ
オレフィン系樹脂の共重合体及び／又はポリオレフィン
系樹脂又はその共重合体をベースとするスティフネス（
ＡＳＴＭＤ７４７）が１００〜５００ｋｇ／ｃｍ＾２の
酸変性接着性樹脂の層（Ｂ）さらに、塩化ビニリデン共
重合体の層（Ｃ）が（Ａ）−（Ｂ）−（Ｃ）−（Ｂ）−
（Ａ）の順で構成されることを特徴とする多層フィルム
。(1) Stiffness (ASTMD747) is 750-5
000 kg/cm^2 layer (A) consisting of a polyolefin resin and/or its copolymer, stiffness (AS
Copolymer of polyolefin resin with TMD747) of 100 to 500 kg/cm^2 and/or stiffness (
A layer (B) of an acid-modified adhesive resin having an ASTM D747) of 100 to 500 kg/cm^2, and a layer (C) of a vinylidene chloride copolymer (A)-(B)-(C)-(B)-
A multilayer film characterized by being constructed in the order of (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31296188A JPH02158341A (en) | 1988-12-13 | 1988-12-13 | Multilayer film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31296188A JPH02158341A (en) | 1988-12-13 | 1988-12-13 | Multilayer film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02158341A true JPH02158341A (en) | 1990-06-18 |
Family
ID=18035569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31296188A Pending JPH02158341A (en) | 1988-12-13 | 1988-12-13 | Multilayer film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02158341A (en) |
-
1988
- 1988-12-13 JP JP31296188A patent/JPH02158341A/en active Pending
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