涤纶短纤维后加工桶底丝产生的原因及控制措施  

Reasons and control of remainder fiber during post-processing of polyester staple fiber

作　　者：张倩楠[1] 

机构地区：[1]中国石化股份公司天津分公司化工部短丝车间,天津300271

出　　处：《合成纤维工业》2016年第1期69-71,共3页China Synthetic Fiber Industry

摘　　要：在纺丝油剂浓度不变的条件下,分析了涤纶短纤维后加工过程中桶底丝产生的原因,并提出控制措施。结果表明:原丝内在质量不均匀、含油水率及后加工集束张力的差异是产生桶底丝的主要原因;适当提高纺丝温度、纺丝速度和纺丝组件初始压力,以及合适的侧吹风条件有利于提高原丝质量的均匀性;通过优化纺丝工艺及上油条件,控制集束张力,120 kt/a涤纶短纤维装置桶底丝明显减少,年平均损耗由原来的3.5 kg/t降低至2.4 kg/t。The reasons for remainder fiber were analyzed at a constant spinning finish concentration during post-processing of polyester staple fiber. The control measures were put forward. The results showed that the main reasons for remainder fiber included the internal quality unevenness of as-spun fiber and the difference in oil and water contents and collection tension; the quality evenness of as-spun fiber could be improved by properly raising the spinning temperature, spinning speed and initial pres- sure of spin pack and rationally controlling the cross air conditions; and the quantity of remainder fiber could be obviously decreased and the annual average consumption could be decreased from 3.5 kg/t to 2.4 kg/t for a 120 kt/a polyester staple fiber plant by optimizing spinning process and oiling conditions and controlling collection tension.

关 键 词：涤纶短纤维 后加工 桶底丝 原丝质量 上油 张力 

分 类 号：TQ342.21[化学工程—化纤工业]