| 摘要 |
PURPOSE:To obtain a stretch and shrink packaging film which does not generate a smell of acetic acid and moreover, has strong uniting force, preferably further the stretch and shrink packaging film is constituted so that a stretch and shrink packaging body superior in elastic recovery properties is obtained. CONSTITUTION:The title film is a multi-layer constituent film wherein a core layer is made of an ethylene-propylene copolymer or an ethyelne-butane- propylene copolymer, both outer layers are made of straight-chainlike low density polyethylene having melt-index of low-density polyethylene having melt- index of 0.5 to 10g/10min and moreover, the sum total of thicknesses of both the outer layers is 10 to 90% of the total film thickness. A film having density of not exceeding 0.905g/cm<3> is preferable for the straight chainlike low-density polyethylene. |
