| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging film specifically suitable for a small roll of wrap film, which is composed of lactic acid polymer as a main material, and to prevent blocking caused by storing in a wound state and to prevent delamination when the small roll is replaced. SOLUTION: A packaging film is composed of a laminated film having at least five layers comprising a surface layer, an adhesive layer, an intermediate layer, an adhesive layer and a surface layer laminated in this order. Both surface layers contain a polyolefin polymer (A) as a main component, the intermediate layer contains a lactic acid resin composition (B) as a main component, and both adhesive layers contain modified polyolefin resin (F) as a main component. COPYRIGHT: (C)2008,JPO&INPIT
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