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

摘要

The invention provides a heat-shrinkable laminated film excellent in breakage resistance, stiffness, and shrink finish; and molded articles, heat-shrinkable labels, and containers, made by using the film. Specifically, a heat-shrinkable laminated film having a layer (A) constituted mainly of a polyester resin and a layer (B) constituted mainly of a polystyrene resin as the face and back layers or interlayers, in which the loss elasticity (EA") of the resin constituting the layer (A) exhibits at least one peak within the range of 50 to 900C and the storage elastic moduli thereof at 0 to 400C satisfy the relationship: EA'(0)/EA'(40) < 1.2, while the storage elastic moduli of the resin constituting the layer (B) at 500C and 900C satisfy the relationships: EB'(50) > 1.5 x 108 Pa and EB'(90) > 5.0 x 10 7 Pa respectively, with the storage elastic modulus curves of E A' and EB' crossing each other and which exhibits a heat shrinkage of 30 to 60% in the direction of main shrinkage after the immersion in warm water at 800C for 10 seconds and a heat shrinkage of ±5% or below in the direction perpendicular thereto in the range of 70 to 800C.