| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated film for a vessel cover material which causes little curling of a tab for opening at the time of boiling or retort sterilization and has an excellent external appearance. SOLUTION: In a method for manufacturing a laminated film (A) having a constitution wherein a sealant film is laminated on a laminated film (B) prepared by laminating a base film and an intermediate layer film of which hot water shrinkage factors in longitudinal and lateral directions by treatment of 95 deg.×5 min. in hot water are both 1.5-3.0%, the tension of the sealant film on the occasion of laminating the sealant film on the laminated film (B) is made 0.5-1.0 time as large as that of the laminated film (B). |
