摘要 |
<p>In heat-shrinkable polyester films, the content of 1,4-cyclohexane dimethanol is 10 to 50 % by mole based on the polyhydric alcohol component and that the heat shrinkage factors of a 10 cm square sample of the films in (A) hot water of 75 DEG C, (B) hot water of 85 DEG C, and (C) hot water of 95 DEG C are 30 to 40 %, 50 to 60 %, and 65 to 77 %, respectively. The films can be produced by drawing under specified conditions.</p> |