| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyamide film laminate having gas barrier property which is a deposited barrier packaging material having a deposited layer of aluminum oxide with a base material of polyamide film, and can continuously have high gas barrier property without causing delamination or the like even when storing contents having high acidity especially such as dressing in a high temperature and humidity for a long period. SOLUTION: In the polyamide film laminate, at least an anchor coat layer 2, the deposited layer 3 of the aluminum oxide where the abundance ratio of aluminum and oxygen is Al:O=1:1.8 to 1:2.0, and a gas-barrier coating layer 4 which is foamed by heating and drying a thin film of a mixed solution where a water-soluble polymer and at least one of a metal alkoxide and its hydrolysate are mixed, are sequentially laminated on one side or both sides of the base material 1 composed of the polyamide film. COPYRIGHT: (C)2008,JPO&INPIT
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