Fine denier POY with good quality can be produced by partially modifying on existing machine and optimizing process and its product quality is good.

• 摘要通过对现有纺丝设备的局部改造和工艺优化，使原生产中粗旦丝的设备能够生产细旦丝，产品的主要物理指标（如强伸度、条干不匀率等）达优等水平。