| 摘要 |
PURPOSE:To improve the seal strength of a film by providing the film formed by an extruded film having low temperature heat sealing properties and emulsion on a base sheet with a laminated structure. CONSTITUTION:An olefin resin film D, having a melting point lower than 145 deg.C, is laminated on a base sheet A, selected from aluminum foil, aluminum deposit film or paper, and a film C, formed by the water-based emulsion of ethylene resin particles having a melting point lower at least 5 deg.C than the melting point of said olefin resin, is formed on the surface of the resin film D. The olefin resin film B is orientated uniaxially and the thickness thereof is 2-50mum while the thickness of the film C is 0.3-10mum. The copolymer of ethylene copolymer and comonomer, having a flow melt ratio of 20g/10min and containing 5-5wt.% of comonomer to be polymerized, is employed as the water-based emulsion of ethylene copolymer resin particles which provide the film C. |
