| abstract |
PROBLEM TO BE SOLVED: To provide a polyester heat-shrinkable film having good shrinkage characteristics, good shrinkage finish, and no deviation due to external force between the shrinked film and the shrinkage target. SOLUTION: After immersing in hot water at 80 ° C. for 10 seconds and then in water at 23 ° C. for 30 seconds, the maximum heat shrinkage in the main shrinkage direction is in the range of 20 to 50%, and in hot water at 80 ° C. It is a polyester heat-shrinkable film having an initial shrinkage stress of 12 MPa or more when immersed. [Selection figure] None |