李鹏翔
LI Peng-xiang

• 1:神马股份帘子布公司

摘要(Abstract)：

采用聚酰胺66熔体直接纺丝生产111 dtex/36 f高速缝纫线,探讨了熔体黏度、纺丝温度、缓冷温度、侧吹风条件、预网络压力、纺丝速度等工艺参数对生产的影响。结果表明:采用相对黏度77~79的聚酰胺66熔体,纺丝温度299℃,缓冷温度298℃,侧吹风速度0.25~0.30 m/s,侧吹风温度19℃,预网络压力0.08~0.12 MPa,卷绕速度2 900 m/min等优化后的工艺参数,生产稳定,产品质量优良,断裂强度达到7.92 c N/dtex,干热收缩率4.6%,染色合格品率98.9%,染色均匀度3~4级,满筒A级品挑出率提高15%左右。
The 111dtex/36 f sewing thread was produced by melt direct spinning process, the influences ofmelt viscosity, spinning temperature, heat-retarder temperature, quenching condition, pre-interlaced pres-sure, spinning speed on the production were discussed. The results showed that when relative viscosity ofpolyamide was 77~79, spinning temperature was(299±2) ℃, heat-retarder temperature was 298 ℃, quench-ing air speed was 0.25~0.30 m/s, quenching air temperature was 19 ℃, pre-interlaced pressure was 0.08~0.12 MPa, spinning speed was 2 900 m/min, the stable production and good quality products were got, thebreaking strength of polyamide 66 sewing thread was 7.92 c N/dtex, hot air shrinkage was 4.6%, qualifieddye product ratio was 98.9%, dye evenness grade was 3~4, and full bobbin product pick out ratio increased 15%.

关键词(KeyWords)： 锦纶66;直接纺丝;缝纫线;生产工艺;挑出率
polyamide 66,direct spinning,sewing thread,production process,full bobbin product pick out ratio

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李鹏翔
LI Peng-xiang

DOI: 10.16090/j.cnki.hcxw.2015.05.006

参考文献(References)：

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