| 摘要 |
PROBLEM TO BE SOLVED: To increase adhesion of inorganic oxide layers to a substrate film made of a polyamide resin in a gas barrier film so as to suppress breaking of a film due to an elongation degradation of the whole laminated films which is caused by reduction of adhesion among films in the case where a material containing a liquid substance is packed. SOLUTION: A transparent gas barrier film is composed of a structure wherein an easily adhering layer, an anchor coating layer and a metal oxide layer are set forth in this order at least on one surface of a polyamide resin substrate layer, and, in the case where a laminated film is structured by laminated sealant layers, the sealant layers are hot-melted and immersed in water and then the maximum energy value of a strength of a heat seal is set forth in a predetermined range. COPYRIGHT: (C)2009,JPO&INPIT
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