DOUBLE-SIDED FILM LAMINATED CAN COVER AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To maintain required strengths of metal, assure an anti-corrosive property and prevent scars on the surface of twisting/clamping portion caused by a processing tool such as a seaming roll or the like without lowering productivity when a can cover laminated in advance with a thermoplastic resin film excluding bisphenol A is used. SOLUTION: A can cover is composed of a metal plate 1 of which both faces are laminated with layers 4, 5 of crystalline thermoplastic resin film. An amorphous rate of a thermoplastic resin film layer 4 on the outer face of the can cover is equal to or more than 60%. The thermoplastic resin film layer 5 on the inner face of the can cover retains at least partially an oriented crystalline layer at some distance from the surface of metal plate 1.