HEAT-SHRINKABLE POLYESTER FILM WITH LOW TEMPERATURE SHRINKAGE AND EXCELLENT SHOCK RESISTANCE BEFORE/AFTER HEAT TREATMENT

摘要

PURPOSE: A heat-shrinkable polyester film is provided to improve low temperature shrinkage, flexibility and shock resistance, good shrinkage finishing property, and low rupture faults.;CONSTITUTION: A heat-shrinkable polyester film is prepared by a copolymerized ester composition consisting of acid and diol components and comprises a dimer acid of unsaturated aliphatic dicarboxylic acid in which the acid component is C16 or more. The acid component comprises dicarboxylic acid 60-97 mole % and dimer acid 3-40 mole %. The diol component comprises ethylene glycol 60-90 mole % and at least one diol 10-40 mole %.;COPYRIGHT KIPO 2010