HEAT-SHRINKABLE FILM, MOLDED ARTICLE OBTAINED BY USING THE FILM, HEAT-SHRINKABLE LABEL, AND CONTAINER OBTAINED BY USING THE MOLDED ARTICLE OR PROVIDED WITH THE LABEL

摘要

PROBLEM TO BE SOLVED: To provide a heat-shrinkable film that is mainly composed of a plant-derived raw material and is excellent in heat-shrinking properties, transparency, resistance to whitening on bending, impact resistance and shrinking finish properties.

SOLUTION: The heat-shrinkable film includes a layer (I) comprised of a resin composition comprising a polylactic acid resin (A) and a core-shell type rubber (B), where the core-shell type rubber (B) is composed of a core layer comprised of a polymer comprising an acrylic ester (a) and a shell layer comprised of a polymer comprising at least an acrylic ester (b) having a chemical structure different from that of the acrylic ester (a), where the core-shell type rubber (B) is contained in the resin composition in an amount of at least 5 mass% and at most 30 mass% based on the 100 mass% of the total of polylactic acid resin (A) and the core-shell type rubber (B) and where the heat-shrinkable film has a heat shrinkage factor of 30-70% in the main shrinking direction when stretched at least in one direction and immersed for 10 s in hot water of 80°C.

COPYRIGHT: (C)2012,JPO&INPIT