LAMINATED FILM FOR EASY UNSEAL FOOD PACKAGING BAG AND BAG FOR EASY UNSEAL FOOD PACKAGING

摘要

PROBLEM TO BE SOLVED: To provide a food packaging method, a laminated film for an easy unseal food packaging bag, and a bag for easy unseal food packaging; wherein the method does not spoil a convenience that it can inhibit invasion of foreign substances, moreover, affords easy unseal and allows repeated opening and closing of a package bag with a binder or the like.;SOLUTION: The food packaging method makes the easy unseal food packaging bag by heat-sealing an opening of a bag under a condition such that the strength would be 0.1 to 5 N/15 mm; after filling foods in the food packaging bag with the opening, or after making a food filled packaging bag with the opening by melt-bonding while filling foods; wherein the food packaging bag with the opening is made by using and melt-bonding a laminated film (I), which has a surface layer (A) of a polypropylene resin and a heat seal layer (B) containing a 1-butene copolymer, under a condition such that the adhesive strength would be 7.5 to 30 N/15 mm. The laminated film for easy unseal food packaging, which has the layers (A) and (B); and the bag for easy unseal food packaging, which is made by melt-bonding the laminated film; are also included in the invention.;COPYRIGHT: (C)2006,JPO&NCIPI