Multilayer heat shrinkable film

摘要

A multiplayer heat shrinkable film including at least: an outer layer of a thermoplastic copolymer blend including at least one ethylene alpha olefin plastomer copolymer or at least one ethylene vinyl ecetate copolymer, and a heat sealable inner layer of a thermoplastic polymer or a thermoplastic polymer blend, wherein said outer layer has a melting point at least 200 higher than said inner layer and said layers being selected to have substantially balanced shrinkage, and wherein said film is oriented to an extent selected to provide shrinkability of at least 35% in at least one of machine and transverse directions, determined by measuring unrestrained shrink of the stretched film at 900 for five seconds.