HEAT SHRINK POLYESTER FILM

摘要

PURPOSE: A heat-shrinkable polyester film is provided to offer the excellent shrinkage finishing property of the film by mainly shrinking to the main contraction direction during a labeling the heat-shrinkable polyester film. CONSTITUTION: A heat-shrinkable polyester film has the heat-shrinking rate to the min contraction direction and the orthogonal direction of 0-5% at room temperature and the shrinking speed of 0.0-0.5% per deg C. The heat-shrinkable polyester film is obtained from a mixture formed with an acid component and a diol component. The acid component is aromatic dicarboxylic acid. The diol component is selected from 60-90mol% of ethylene glycol, or 10-50mol% of trimethylene glycol, tetramethylene glycol, 2,2-dimethyl-1,3-propanediol, and 1,4-cyclohexanedimethanol.