| 摘要 |
<p>PURPOSE:To have excellent physical strength, bag preparability and film formability at a low cost, by preparing a laminated film by laminating a thermoplastic resin heat-sealing layer and a metal layer through an adhesive layer prepared by extrusion-lamination of a specified linear low density polyethylene resin and specifying the transmitting optical density, the moisture permeability and the static voltage on peeling. CONSTITUTION:A laminated film consists of a thermoplastic resin heat-sealing layer Ia and a metal layer IIIM which are laminated through an adhesive layer prepared by extrusion-lamination of a linear low density polyethylene resin prepared by blending 30-90 wt.% of linear low density polyethylene resin which is an ethylene-alpha-olefin copolymer resin and 70-10 wt.% of high pressure polyethylene resin, whose melt index is 5-20g/10 min and density is 0.870-0.930g/cm<3>. Moreover, this laminated film is prepared in such a way that the transmitting optical density, the moisture permeability and the static voltage on peeling are 4.0 or more, 2.0g/m<2> 24 hr or less and 50 kV or less respectively. It is also possible to laminate moreover a flexible sheet layer 4 on the metal layer IIIM side. It is thereby possible to improve the laminatability and the resistance to pinhole formation and the physical strength.</p> |
