JPH0176219U - - Google Patents
Info
- Publication number
- JPH0176219U JPH0176219U JP1987172925U JP17292587U JPH0176219U JP H0176219 U JPH0176219 U JP H0176219U JP 1987172925 U JP1987172925 U JP 1987172925U JP 17292587 U JP17292587 U JP 17292587U JP H0176219 U JPH0176219 U JP H0176219U
- Authority
- JP
- Japan
- Prior art keywords
- film
- transparent
- temperature
- water vapor
- barrier properties
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims 2
- 229920003023 plastic Polymers 0.000 claims 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims 1
- 229920012753 Ethylene Ionomers Polymers 0.000 claims 1
- 125000003158 alcohol group Chemical group 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 claims 1
- 229920001903 high density polyethylene Polymers 0.000 claims 1
- 239000004700 high-density polyethylene Substances 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 229920001684 low density polyethylene Polymers 0.000 claims 1
- 239000004702 low-density polyethylene Substances 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- -1 polypropylene, ethylene-vinyl acetate Polymers 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Wrappers (AREA)
- Laminated Bodies (AREA)
Description
第１図は本考案に係る積層フイルムの拡大断面
図、第２図は、実施例および比較例において得ら
れた積層フイルムについての、水蒸気透過率の経
時的追跡曲線で、横軸は試験開始後の経過時間、
縦軸は水蒸気透過率である。
第１図において、１はＰＶＡ系フイルム、２は
水蒸気バリヤ性の高いプラスチツクフイルム、３
は水蒸気透過性の高い有孔プラスチツクフイルム
であり、また第２図において、ＡおよびＢは、そ
れぞれ実施例１のフイルムおよび比較例１のフイ
ルムに関する水蒸気透過率の経時的追跡曲線であ
ることを示す。
FIG. 1 is an enlarged cross-sectional view of the laminated film according to the present invention, and FIG. 2 is a temporal tracking curve of water vapor permeability for the laminated films obtained in Examples and Comparative Examples, and the horizontal axis is after the start of the test. elapsed time,
The vertical axis is the water vapor transmission rate. In Figure 1, 1 is a PVA film, 2 is a plastic film with high water vapor barrier properties, and 3 is a PVA film.
is a perforated plastic film with high water vapor permeability, and in FIG. 2, A and B are the water vapor permeability tracing curves over time for the film of Example 1 and the film of Comparative Example 1, respectively. .
Claims (1)
含有するポルビニルアルコール系樹脂よりなるフ
イルムであつて、少なくとも一軸方向に５〜１０
倍の範囲内で延押され、ついで、フイルムの延伸
温度を下限とし、原料樹脂の融点未満の温度と上
限とする温度範囲内で熱処理を施されたポリビニ
ルアルコール系フイルムの一方の面には、水蒸気
バリヤ性の高い透明なプラスチツクフイルムが積
層され、他方の面には温度４０°Ｃ、相対湿度９
０％の条件下における水蒸気透過率が５００ｇ／
ｍ２・２４ｈｒｓ．２０μｍ以上である透明な有
孔プラスチツクフイルムが積層されてなることを
特徴とするガスバリヤ性の優れた透明な積層フイ
ルム。 (2) 水蒸気バリヤ性の高い透明プラスチツクフ
イルムが、温度４０°Ｃ、相対湿度９０％の条件
下における水蒸気透過率が２ｇ／ｍ２・２４ｈｒ
ｓ．２０μｍ以下のものより選択されたものであ
る、実用新案登録請求の範囲第(1)項記載のガス
バリヤ性の優れた透明な積層フイルム。 (3) 透明な有孔プラスチツクフイルムが、低密
度ポリエチレン、高密度ポリエチレン、ポリプロ
ピレン、エチレン―酢酸ビニル共重合体、アイオ
ノマーよりなるフイルムから選択されたものであ
る、実用新案登録請求の範囲第(1)項または第(2)
項記載のガスバリヤ性の優れた透明な積層フイル
ム。[Scope of Claim for Utility Model Registration] (1) A film made of a porvinyl alcohol resin containing 50 mol% or more of vinyl alcohol residue, which has a polyvinyl alcohol residue of 5 to 10% in at least one axis
One side of the polyvinyl alcohol film is stretched and pressed within a temperature range of 1.5 times the original temperature, and then heat-treated within a temperature range between the lower limit of the film stretching temperature and the upper limit of a temperature below the melting point of the raw material resin. A transparent plastic film with high water vapor barrier properties is laminated on the other side at a temperature of 40°C and a relative humidity of 9.
Water vapor transmission rate under 0% condition is 500g/
m2・24hrs. A transparent laminated film with excellent gas barrier properties, characterized by laminating transparent perforated plastic films having a diameter of 20 μm or more. (2) A transparent plastic film with a high water vapor barrier property has a water vapor transmission rate of 2 g/ m2 /24 hr under conditions of a temperature of 40°C and a relative humidity of 90%.
s. A transparent laminated film with excellent gas barrier properties according to claim (1) of the utility model registration, which is selected from those having a diameter of 20 μm or less. (3) Utility model registration claim No. 1 in which the transparent perforated plastic film is selected from films made of low density polyethylene, high density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and ionomer. ) or (2)
A transparent laminated film with excellent gas barrier properties as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17292587U JPH0536685Y2 (en) | 1987-11-12 | 1987-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17292587U JPH0536685Y2 (en) | 1987-11-12 | 1987-11-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0176219U true JPH0176219U (en) | 1989-05-23 |
| JPH0536685Y2 JPH0536685Y2 (en) | 1993-09-16 |
Family
ID=31464873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17292587U Expired - Lifetime JPH0536685Y2 (en) | 1987-11-12 | 1987-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536685Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09134034A (en) * | 1995-11-07 | 1997-05-20 | Konica Corp | Developer, its production and its storing method |
| WO2008139593A1 (en) * | 2007-05-11 | 2008-11-20 | Tenshi No Tsubasa Co., Ltd. | Plastic sheet for packaging container |
-
1987
- 1987-11-12 JP JP17292587U patent/JPH0536685Y2/ja not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09134034A (en) * | 1995-11-07 | 1997-05-20 | Konica Corp | Developer, its production and its storing method |
| WO2008139593A1 (en) * | 2007-05-11 | 2008-11-20 | Tenshi No Tsubasa Co., Ltd. | Plastic sheet for packaging container |
| JPWO2008139593A1 (en) * | 2007-05-11 | 2010-07-29 | ジェイケミカル株式会社 | Plastic sheet for packaging containers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0536685Y2 (en) | 1993-09-16 |
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