shrinkage curve

The temperature upper limit was determined with 1st stage temperature shrinkage curve of the film, which can ensure the heat-sealing strength and reduce the heat-sealing time, reduce the damage rate, and ensure the beauty of the sealing line.

确定了对于共挤薄膜的热封温度应取温度收缩曲线的一阶段作为上限，并在保证封口强度的基础上，应减少热封时间，可以有效地减少破损率，保证封合处的表面美观。

The results of heat shrinkage rate of multi-filaments only express the maximum heat shrinkage rate of unbroken filament. The tensile curve of multi-filaments after heat shrinkage had some relationship with the distribution of heat shrinkage rate of single fiber.

结果表明，复丝热收缩率的测试数据只大体反映未被拉断的单纤维中的热收缩率最大值，复丝热收缩后的拉伸曲线与单纤维热收缩率分布有一定程度的相关性。