| 摘要 |
PROBLEM TO BE SOLVED: To provide a film which satisfies both of stretching stability and tear-proof property while satisfactorily holding high shrinkage characteristics, low thermal shrinking force, heat resistance, and sealing performance. SOLUTION: The polyethylene based crosslinked shrink film is a laminate comprising two surface layers A comprising an ethylene based polymer blend consisting of 80-100 wt.% of a linear low density polyethylene and 0-20 wt.% of an ethylene-α-olefin copolymer, an internal layer B comprising an ethylene based polymer blend consisting of 60-100 wt.% of a super low density polyethylene and 0-40 wt.% of an ethylene-α-olefin copolymer, and an internal layer C comprising a ethylene based polymer consisting of a linear low density polyethylene as a principal component, wherein after the laminate is irradiated with an electron ray having 30-160 kGy of an absorption dose, a stretching process by at least three times in the vertical direction and the longitudinal direction is carried out respectively. COPYRIGHT: (C)2007,JPO&INPIT
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