【摘要】 本文采用低温拉伸,同时在保证纤维机械性能的前提下采用低拉伸倍率以及低温热定型,可以使聚酯中空纤维具有潜在的高收缩率。本研究用正交设计,找出既有利后拉伸又保证卷绕丝中空度的最佳工艺组合。采用此工艺已工业化试生产出中空度为8—20%,成空率≥98%,沸水收缩率为25—36%的双功能聚酯纤维。更多还原

【Abstract】 High shrinkage hollow PET fiber with proper mechanical properties could be obtained bymeans of low temperature stretching, low draw-down ratio and low temperature annealing. Thebest technological parameter both beneficial to the processing and the hollowness of as-spunyarn was found through this study. About 200 tons of high shrinkage hollow PET fiber withhollowness 8--20%, elastic recovery 79.1%, shrinkage in boiling water 25--36% has beenproduced.更多还原