| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sealable laminating polypropylene resin film having a heat seal strength and a seal energy sufficient to package heavy weight articles and good transparency and a package body constituted by using the film. SOLUTION: In the heat sealable laminating polypropylene resin film which is the drawn polypropylene resin film comprising a laminated material of at least three layers having a base material layer comprising a crystalline polypropylene resin, a middle layer, and a heat sealing layer with a melting point of 150°C or less, the seal energy when sealing at a temperature in which the seal strength of 8 N/15 mm or more can be obtained is 11 Ncm/15 mm or more and the inner haze is 1.5% or less. COPYRIGHT: (C)2007,JPO&INPIT
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