申请人:DIAFOIL HOECHST CO., LTD
公开号:EP0267799A2
公开(公告)日:1988-05-18
A shrinkable polyester film for applying to bottles and other articles comprises not less than 50 mol% of ethylene terephthalate units and has a birefringence of from 0.040 to 0.150, a shrinkage of not less than 40% in one of the machine direction and the transverse direction and a shrinkage of not more than 20% in the other of the said directions after 5 min treatment in an air oven at 100°C, and a heat of fusion of not less than 8.37 kJ/kg (2 cal/g).
一种用于瓶子和其他物品的可收缩聚酯薄膜,其对苯二甲酸乙二醇酯单元的含量不小于 50 摩尔%,双折射度为 0.040 至 0.150,在 100°C 的空气烘箱中处理 5 分钟后,在机械方向和横向中的一个方向上的收缩率不小于 40%,在上述两个方向中的另一个方向上的收缩率不大于 20%,熔融热不小于 8.37 千焦/千克(2 卡/克)。