Patent ID: 9302418
Filing Date: 2016-04-05
CPC Classification: B29C,B29K,B29L,B32B,B41M,Y10T

Claim Text:
1. A resin film comprising a multilayer structure of a print layer (A), a gloss-imparting layer (B) and a substrate layer (C) as laminated in that order, wherein: the print layer (A) comprises from 90 to 100% of a propylene random copolymer having a melting point of from 70 to 142° C. or a mixture of propylene random copolymer and an ethylene copolymer comprising ethylene in an amount of more than 50% and from 0 to 10% of an inorganic fine powder and/or an organic filler, the gloss-imparting layer (B) comprises from 70 to 100% of a thermoplastic resin and from 0 to 30% of an inorganic fine powder and/or an organic filler, and the substrate layer (C) comprises a thermoplastic resin; and wherein the resin film has a glossiness (JIS P-8142), as measured on the surface side of the print layer (A), of from 70 to 110%, the resin film has an oxygen atom concentration of from 5 to 20% as measured on the surface side of the print layer (A) through X-ray photoelectron spectrometry with an X-ray source of 1254.0 eV in a vacuum of at most 1×10 the oxygen atom concentration of the resin film is obtained by controlling the oxygen atom concentration to be from 5 to 20% by applying oxidation treatment to the surface of the print layer (A) via corona discharge treatment at applied energy of from 600 to 12,000 J/m