| 摘要 |
PROBLEM TO BE SOLVED: To provide a stretch shrink film that is good in suitability for packaging and tensity after packaging and can be provided with gas barrier property or smell barrier property. SOLUTION: The film comprises a laminated makeup having at least three layers of a front layer, a center layer and a back layer. The center layer is composed chiefly of a polyamide resin, and the front and back layers are composed mainly of a single or mixed resin selected from polyolefin resins. The stress at 50% tensile elongation to the film machine direction is in the range of≥20 MPa and≤80 MPa, and the stress at 50% tensile elongation to the transverse direction of the film is in the range of >10 MPa and≤50 MPa. COPYRIGHT: (C)2007,JPO&INPIT
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