| 摘要 |
PROBLEM TO BE SOLVED: To provide a biaxially oriented multi-layer polyethylene film which can be torn both longitudinally and laterally and is excellent in transparency, shrinkability, heat sealability, and bending resistance. SOLUTION: In the biaxially oriented multi-layer polyethylene film, a heat fusion layer obtained from an ethylene-α-olefin random copolymer (B) of 890-910 kg/m<SP>3</SP>density is laminated on at least one side of a biaxially oriented polyethylene film substrate layer obtained from polyethylene (A) having a density of 915-938 kg/m<SP>3</SP>, a fusion heating value (ΔH<SB>T</SB>) obtained by a differential scanning calorimeter (DSC) of 100-140 J/g, a fusion heating value (ΔH<SB>L</SB>) in a range of a fusion starting temperature -110°C of 50-80 J/g, a fusion heating value (ΔH<SB>H</SB>) in a range of a fusion finishing temperature 110°C- of 35-80 J/g, and a ratio (ΔH<SB>H</SB>)/(ΔH<SB>L</SB>) of 0.5-1.5. COPYRIGHT: (C)2006,JPO&NCIPI
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