Gas barrier laminate film

A gas-barrier layer and film technology, applied in the direction of coating, layered products, etc., can solve the problems such as the inability to visually identify the contents of the package, the inability to use metal detectors, and the easy degradation of the gas barrier properties of the covering layer.

Active Publication Date: 2005-12-28
TOPPAN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the gas barrier property of the covering layer is easily degraded under severe conditions such as boiling or distillation treatment
[0005] On the other hand, in the case of metal foil and metallized film, although they have excellent gas barrier properties, they are accompanied by some problems: the contents of the package cannot be visually recognized through the packaging material, and the contents of the package cannot be detected. Use metal detectors and require non-combustible materials when disposing of them
However, since the second layer of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0067] Using biaxially oriented PET (P60; Toray Co., Ltd.) with a thickness of 12 μm and a corona-treated surface as a substrate, aluminum was thermally deposited on the corona-treated surface by an electron beam heating system using an aluminum evaporation source. In this case, the evaporation of aluminum was adjusted while adding oxygen to obtain a predetermined film composition, thereby forming a vapor-deposited layer of aluminum oxide with a thickness of 150 angstroms. The thin film composition of the aluminum oxide vapor-deposited layer including aluminum and oxygen was determined using an X-ray photoelectron spectroscopic analyzer (ESCA) (JPS-90SXV; Nippon Denshi Co., Ltd.) and by argon etching according to the Depth Profiling method, consisting of This was adjusted and the following film composition was obtained.

Embodiment 1-5、8

[0068] Examples 1-5, 8, comparative example; Al:O=1:1.8

Embodiment 6

[0069] Example 6; Al:O=1:1.0

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Abstract

A gas barrier laminated film, comprising a resin substrate, a gas barrier vapor deposition layer and a gas barrier coating layer laminated thereon, wherein the gas barrier coating layer is formed by coating and drying a coating liquid, the coating liquid Including: Si(OR1) 4 or its hydrolyzate, (R2Si(OR3) 3) n or its hydrolyzate (where R1 and R3 are each CH3, C2H5 or C2H4OCH3; and R2 is an organic functional group) and water-soluble polymeric thing.

Description

technical field [0001] The present invention relates to a gas-barrier laminated film, which can be used as a packaging material for food and non-food fields such as medicines and electronic articles, in particular, to a gas-barrier laminated film, which has Excellent gas barrier properties can prevent oxygen or water vapor in the atmosphere from entering the package, thereby suppressing deterioration or denaturation of the contents of the package. Background technique [0002] In order to suppress the denaturation of the contents of the package and thus maintain the function and performance of the contents, packaging materials for packaging food and non-food items such as medicines and electronic articles are required to prevent the passage of gases such as oxygen, water vapor and other types of gases through the packaging material Penetrates and denatures the contents of the package. Therefore, packaging materials are required to have sufficient gas b...

Claims

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Application Information

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IPC IPC(8): C08J7/043C08J7/048C09D4/00C09D183/04
CPCC09D4/00C09D183/04C08J7/0423C08J7/043C08J7/048B32B9/04
Inventor 田中吏里佐佐木昇
Owner TOPPAN PRINTING CO LTD
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