| 摘要 |
PROBLEM TO BE SOLVED: To provide a crosslinked, shrink polyethylene film which is superior in orientation processing properties and can obtain enough shrink-wrapping finish properties when an object having difficult shrink-wrapping finish properties such as an unusually shaped object or a small-sized container is packaged or when a high-grade product is packaged beautifully. SOLUTION: The crosslinked, shrink polyethylene film has at least three layers including a core layer containing an ethylene-α-olefin copolymer having a density of 0.890-0.910 g/cm<SP>3</SP>, a melt index of 0.3-1.5 g/10 min, and a difference between the highest temperature side peak temperature and the lowest temperature side peak temperature of a melting peak measured by a differential scanning calorimeter of at least 20°C as a main component and both surface layers containing an ethylene-α-olefin copolymer having a density of 0.910-0.925 g/cm<SP>3</SP>and a melt index of 1.0-3.0 g/10 min as a main component and is obtained by being crosslinked by being irradiated with electron beams of 20-60 kGy and by being stretched 3-6 times horizontally and vertically at the same time. COPYRIGHT: (C)2010,JPO&INPIT
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