| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-sealable laminated polypropylene resin film having heat-sealing strength sufficient to package a heavy article, good in stiffness feeling, capable of applying printing to a thermowelding layer and suitably usable in packaging, and a package using it. SOLUTION: This heat-sealable laminated polypropylene resin film comprises a laminate having at least a three-layered structure composed of a base material layer comprising a crystalline polypropylene resin, an intermediate layer and the thermowelding layer with a melting point of 150°C or below and is characterized in that each of the tensile moduli in both directions crossing mutually at a right angle of the film is 1.45 GPa or above, the heat-sealing strength thereof is 10 N/15 mm or above and the wet tension of the surface of the thermowelding layer is 31 mN/m or above. COPYRIGHT: (C)2005,JPO&NCIPI
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