| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat shrinkable film having a heat shrinkable function layer capable of not causing wrinkle on a part which is subjected to rapid change upon heat shrinking. SOLUTION: The heat shrinkable film 2 contains a heat shrinkable function layer on at least one surfaces of a heat shrinkable material, and the heat shrinkable function layer comprises a polyvinyl pyrrolidone type resin, preferably in an amount of 20-80 wt.% relative to the total resin components. The heat shrinkable film may be one comprising the polyvinyl pyrrolidone type resin component and a resin component having a glass transition temperature of 80°C or lower as the resin having the heat shrinkable function layer. COPYRIGHT: (C)2009,JPO&INPIT
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