| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain the easily openable packaging material for the photosensitive material enhanced in physical strength and having not only perfect airtightness and perfect light-shielding performance but also easy openability and moreover having both of aptitudes to waste disposal and recycling by using laminated films comprising at least one light shielding layer and at least one easily openable layer. SOLUTION: The packaging material is made of the laminated films comprising the biaxially stretched film layer 1a and a thermoplastic resin film layer 2a containing an ethylene copolymer resin and/or a thermoplastic elastomer in an amount of at least 5weight%, and at least one of the laminated films has a perfect light-shielding performance, and at least one layer 3a except the biaxially stretched film layer 1a is molecule-oriented plastic film having a ratio TD/MD of a tear strength in the lateral direction (TD) to one in the longitudinal direction (MD) of >=3.</p> |
