LAMINATED FILM FOR EASY-TO-OPEN BARRIER PACKAGING BAG, METHOD OF MANUFACTURING THE SAME, AND BARRIER PACKAGING BAG USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a laminated film for an easy-to-open barrier packaging bag which prevents perforations from appearing on surfaces.SOLUTION: A laminated film 1 comprises aluminum foil 2 the two surfaces of which consist of a low-gloss rough surface 2a and a glossy surface 2b. On the rough surface 2a of the aluminum foil 2, a biaxially stretched polyamide film 7 and a sealing layer 8 are laminated in sequence. A biaxially stretched polyester film or polyester/polyamide multilayer film 9 is laminated on the glossy surface 2b of the aluminum foil 2. Perforations 10 are formed in the biaxially stretched polyamide film 7.