Gas barrier laminate film
A gas-barrier layer and film technology, used in coatings, layered products, etc., can solve the problems of reduced gas-barrier properties, inability to visually identify the contents of the package, and inability to use metal detectors.
Inactive Publication Date: 2009-05-20
TOPPAN PRINTING CO LTD
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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 the gas barrier packaging material is formed by the hydrogen bond between the metal alkoxide hydrolyzate and the water-soluble polymer having hydroxyl groups, when the gas barrier packaging material is used as a When the packaging material is used, the cover layer will swell, causing the problem of lowered gas barrier properties
Even if the reduction in gas barrier properties is small, this packaging material is not suitable for packaging materials that require very high gas barrier properties, such as in the case of primary packaging for infusion solutions
Method used
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Experimental program
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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 an aluminum oxide vapor-deposited layer with a thickness of 150 angstroms. The film composition of the aluminum oxide vapor deposition layer including aluminum and oxygen was measured using an X-ray photoelectron spectroscopic analyzer (ESCA) (JPS-90SXV; Nippon Denshi Co., Ltd.) and etched with argon gas according to the Depth Profiling method, consisting of This adjusted and obtained the film composition as follows.
Embodiment 1-5、8
[0068] Embodiment 1-5,8, comparative example; Al:O=1:1.8
Embodiment 6
[0069] Embodiment 6; Al:O=1:1.0
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Abstract
A gas barrier laminate film comprising a resin substrate on which a gas barrier vapor deposition layer, and a gas barrier covering layer are laminated, wherein the gas barrier covering layer is formed through the coating, and drying of a coating liquid comprising Si(OR<1>)4 or the hydrolyzates thereof, (R<2>Si(OR<3>)3)n or the hydrolyzates thereof (wherein R<1> and R<3> are individually CH3, C2H5 or C2H4OCH3, and R<2> is an organic functional group) and a water-soluble polymer having a hydroxyl group.
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, the present invention relates 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 inhibit the denaturation of the contents of the package and thus maintain the functionality and performance of the contents, packaging materials used for packaging food and non-food items such as pharmaceuticals and electronic items are required to prevent gases such as oxygen, water vapor and other types of gases from passing through the packaging materials Penetrate and cause denaturation of packaged contents. Therefore, packaging materials are required to h...
Claims
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IPC IPC(8): B32B9/00C08J7/043C08J7/048C09D4/00C09D183/04
CPCC09D4/00C09D183/04C08J7/045C08J7/0423C08J7/043C08J7/048B32B9/04
Inventor 田中吏里佐佐木昇
Owner TOPPAN PRINTING CO LTD
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