HEAT-SHRINKABLE LAMINATED FILM, AND MOLDED ARTICLES, HEAT-SHRINKABLE LABELS AND CONTAINERS, MADE BY USING THE FILM

摘要

The present invention provides a heat-shrinkable laminated film which exhibits excellent breakage resistance, stiffness and shrink finishing quality, and provides a molded product and heat-shrinkable label using the films, and a container. The heat-shrinkable laminated film is made of an A layer mainly constituted of a polyester series resin and a B layer mainly constituted of a polystyrene series resin, respectively used as front and back layers and an intermediate layer, in which a peak temperature of the loss elastic modulus (E A ") of a resin that constitutes the A layer exists at least one in the range of 50°C or more and 90°C or less; the storage elastic moduli (E A ') at 0°C and 40°C satisfy E A ' (0) /E A ' (40) ‰¦ 1.2, and the storage elastic moduli (E B ') at 50°C and 90°C of the resin that constitutes the B layer satisfy E B ' (50) ‰§ 1.5 x 10 8 Pa and E B ' (90) ‰§ 5.0 x 10 7 Pa; storage elastic modulus curves of E A ' and E B ' intersect with each other; and the thermal shrinkage ratio in a main shrinkage direction of the film when the film is dipped in a hot water at 80°C for 10 sec is 30% or more and 60% or less, and the thermal shrinkage ratio in a direction perpendicular to the main shrinkage direction is -5% or more and +5% or less in the range of 70°C or more and 80°C or less.