| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin stretched film having rigidity, toughness and transparency, not generating pinholes or the undulation of a film at a time of the heat seal by a hot-melt adhesive in a bag article packing field and generating wrinkles in the window bonding of an envelope having a large window frame. SOLUTION: In a resin stretched film composed of a vinyl aromatic hydrocarbon/aliphatic unsaturated alkyl carboxylate copolymer (A) or consisting of the copolymer (A) and other thermoplastic polymer (B), Vicat softening point is 80-110 deg.C, the average of longitudinal and lateral heat shrinkage stresses is 2-20kg/cm<2> and the heat shrinkage factor at the time of heating at 80 deg.C for 10min in a hot air circulating oven is 5% or less in longitudinal and lateral directions. |
