RETORT-RESISTANT BIAXIALLY ORIENTED LAMINATED FILM

摘要

PROBLEM TO BE SOLVED: To provide a biaxially oriented laminated film having high oxygen barrier properties and impact resistance and especially excellent in the retort resistance of a retort food or the like hating the deterioration of content due to the permeation of oxygen and suitably usable in a retort treating packaging use. SOLUTION: The retort-resistant biaxially oriented laminated film comprises at least a three-layered structure wherein at least a polyamide layer, a gas barrier layer and the polyamide layer are laminated in this order and the gas barrier layer comprises a mixture of a saponified ethylene/vinyl acetate copolymer with an ethylene content of 25-38 mol% and a polyamide. The total thickness of the biaxially oriented laminated film is 20-30μm and the impact-resistant strength of one film is 2.0 J or above. COPYRIGHT: (C)2005,JPO&NCIPI