| abstract |
(57) [Abstract] [Problem] Gas barrier property under high humidity, durable barrier property, An object of the present invention is to provide a gas barrier film having adhesion and printability of a coating film. SOLUTION: In a film in which inorganic plate-like particles and a water-soluble or water-dispersible polymer are mainly formed on at least one surface of a thermoplastic resin substrate, a film having a surface roughness parameter Rt / The film has a Ra of 25 or less and the number of undulations in the range of 25 to 100 μm in diameter of the coating film surface is 1 to 150 per 1 mm 2 . |