STRETCH FILM FOR PACKAGING FOOD

PROBLEM TO BE SOLVED: To provide a film which is excellent in characteristics required as a stretch film for packaging food such as molding property, transparency and automatic tray-packaging machine applicability. SOLUTION: This stretch film for packaging food is a laminated film having a core layer (A) and both surface layers (B). The core layer (A) contains (1) 10 to 40 wt.% of a crystalline butene-1 polymer, (2) 15 to 70 wt.% of an ethylene-α-olefin copolymer of which the density is 0.93 g/cm3or lower, (3) 10 to 40 wt.% of one kind or more resins selected from a group comprising a petroleum resin, a terpene resin, a coumarone-indene resin, rosin resin, an alkyl-phenol resin and hydrogenated derivatives of them, and (4) 10 to 40 wt.% of a crystalline propylene polymer of which the crystal melting temperature is 160°C or higher. Both surface layers (B) contain an ethylene polymer. COPYRIGHT: (C)2003,JPO