摘要
采用特性粘数为0.645dL/g的半消光PET熔体直接纺丝生产56dtex/72f涤纶FDY。结果表明,采用喷丝板孔径为0.17mm,长径比为3.0,油嘴上油,纺丝温度291℃,侧吹风速度0.35~0.40m/s,缓冷器温度290℃,拉伸温度90~92℃,定型温度128~131℃,拉伸倍数2.55—2.65,卷绕速度4200m/min,生产稳定,纤维条干不匀率为1.43%,染色均匀度大于4级,沸水收缩率为8.0%。
A kind of 56 dtex/72 f PET FDY was prepared via direct spinning process from semi-dull PET melt with the intrinsic viscosity of 0. 645 dL/g. The results showed that the production can be stabilized by using a spinneret with orifice diameter 0.17 mm and length-and-diameter ratio 3.0 and oil nipples for oiling under the conditions as followed: spinning temperature 291℃, cross air speed 0.35 -0.40 m/s, annealer temperature 290℃, drawing temperature 90 -92℃, setting temperature 128 - 131℃, draw ratio 2.55 -2.65, winding speed 4 200 m/min. The obtained fiber had the yarn unevenness 1.43%, dyeing uniformity above Grade 4 and boiling water shrinkage 8.0%.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2008年第6期57-59,共3页
China Synthetic Fiber Industry
关键词
聚对苯二甲酸乙二酯纤维
直接纺丝
微细旦
全拉伸丝
生产工艺
polyethylene terephthalate fiber
direct spinning
micro-denier
fully-drawn yarn
production process