| 摘要 |
PURPOSE:To inhibit the scraping of a packing bag by friction with a photographic sensitive material as well as to improve the heat sealability and to increase the physical strength by using a PE resin layer formed with PE resin so as to provide a prescribed Young's modulus. CONSTITUTION:A PE resin layer 1a having >=50kg/mm<2> Young's modulus and >=35mum thickness is formed as the innermost layer brought into contact with a photographic sensitive material with PE resin having >=0.930g/cm<3> density. A porous sheet 2 having <=0.92g/cm<3> density and >=60mum thickness is laminated on the PE resin layer 1a with an adhesive layer 4 in-between and a flexible sheet 3 contg. 0.1-20g/m<2> light shielding substances is further laminated on the sheet 2 with an adhesive layer 4 in-between. The amount of the light shielding material is regulated to >=0.5g per 1m<2> resulting laminate. |
