HEAT-SHRINKABLE LAMINATED FILM

摘要

PROBLEM TO BE SOLVED: To provide a heat-shrinkable laminated film excellent in breaking resistance, transparency and recyclability. SOLUTION: This heat-shrinkable laminated film comprises at least three layers including an intermediate layer and the surface and rear layers laminated on both sides thereof and is stretched at least uniaxially so that the heat shrinkage factor thereof in hot water of 80°C for 10 sec in a main shrinkage direction is 30% or above. The surface and rear layers contain at least one kind of a polyester resin while the intermediate layer contains at least one kind of a block copolymer of a styrenic hydrocarbon and a conjugated diene hydrocarbon and the refractive index (n1) measured according to JIS K7142 of the block copolymer is within the range of±0.02 of the refractive index (n2) of the polyester resin. COPYRIGHT: (C)2005,JPO&NCIPI