| 摘要 |
PROBLEM TO BE SOLVED: To provide a manually non-openable thin battery bag by providing, on the whole surface or whole peripheral part of a body, a sheet having an average tearing load or maximum tearing load by Trauzer tear method of a specified value or more in all tearing directions. SOLUTION: A sheet-like base material 6 is formed of a laminate material 4 consisting of a sealant layer 2 of modified polypropylene (modified PP) and a metallic layer 3 of aluminum foil and a uniaxial oriented resin film laminated product 1 adhered to the surface of the metallic layer 3 of the laminate material 4 through an urethane adhesive layer 5. The base material 6 is formed into a bag by mutually heat-sealing the sealant layers 2. The uniaxial oriented resin film laminated product 1 is laminated through the urethane adhesive layer 7 so that the angles of the orienting axes of two uniaxial oriented resin films 1a are right-angled to each other, and its average tearing load by JIS K 7128 A method (Trauzer tear method) is set to 1 Kgf or more in all directions. |
