涤纶预取向丝(P-POY) POLYESTER PRE-ORIENTED YARN FULL DRAW YARN(全拉伸丝) DTY是指POY在加弹机上经过拉伸定型后的丝,简单的说与FDY相比,具有蓬松性。 低弹丝和高弹丝的区别是POY在加弹的过程中,加弹机有没有使用二热箱,经过二热箱定...
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