EASILY OPENABLE COMPOSITE FILM

摘要

PROBLEM TO BE SOLVED: To provide an easily openable composite film, in which in a sealant film used for a flexible packaging bag, various characteristics of low- temperature heat-sealing properties, a broad heat-sealing temperature range, an outward appearance of a release face and work suitability, to say nothing of easily openable properties are simultaneously satisfied with good balance. SOLUTION: The easily openable composite film is a composite film consisting of at least two layers (A), (B). In the layer (A), 10-25 wt.% low density polyethylene and 5-15 wt.% at least one kind selected from ethylene-propylene rubber and ethylene-propylene-butene-1 rubber are blended with a polypropylene base copolymer and total of low density polyethylene and rubber is <=30 wt.%. The layer (B) consists of a propylene base polymer.