发明公开
EP1810822A4 HEAT SHRINKABLE LAMINATED FILM, MOLDED ARTICLE USING SUCH FILM, AND HEAT SHRINKABLE LABEL AND CONTAINER 审中-公开
热收缩层压薄膜,模塑制品使用这种性膜和容器和热收缩标签

HEAT SHRINKABLE LAMINATED FILM, MOLDED ARTICLE USING SUCH FILM, AND HEAT SHRINKABLE LABEL AND CONTAINER
摘要:
The present invention provides a heat-shrinkable laminated film, which exhibits excellent film rigidity, shrink finishing quality, transparency of the recycled film, and a small natural shrinkage, with suppressed film interlayer peeling and shrinking stress, and which is applicable to shrinkable packing, shrinkable bond-packing, shrinkable label and the like. The heat-shrinkable laminated film comprises: a surface layer (S layer) composed of a polyester series resin composition containing a polyvalent carboxylic acid residue and a polyvalent alcohol residue; a middle layer (M layer) composed of a styrene series resin composition; and an adhesive layer (AD layer) which contains a copolymer of styrene series hydrocarbon and a conjugated dienic hydrocarbon or hydrogenated derivatives thereof, and having a styrene series hydrocarbon content rate to the entire copolymer or hydrogenated derivatives is 5~40 mass % or less. An elongation modulus of the film in a direction perpendicular to a main shrinking direction of the film is 1200MPa or more, and a shrinking stress in the main shrinking direction of the film is 8MPa or less or a rupture elongation at 23°C is 40% or more.
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