22 dtex/35 f超细旦PA6 FDY高速纺工艺探讨  

High-speed spinning process of 22 dtex/35 f ultrafine PA6 FDY

作　　者：马清芳[1] 王峥[1] 李江[1] 郝超伟[1] 来国桥[1] 蒋剑雄[1] 陆达天[1] 

机构地区：[1]杭州师范大学有机硅化学及材料技术教育部重点实验室,浙江杭州310012

出　　处：《合成纤维工业》2012年第6期68-70,共3页China Synthetic Fiber Industry

基　　金：浙江省重大科技专项重点工业化项目(2010C11043);国家863计划项目(2010AA03A406)

摘　　要：采用自制的专用母粒与尼龙6(PA6)切片共混纺丝,通过调整工艺参数,在高速纺设备上纺制了规格为22 dtex/35 f超细旦PA6全拉伸丝(FDY);对PA6及专用母粒的干燥、纺丝温度、组件压力、侧吹风速度等工艺条件对超细旦PA6 FDY生产的影响进行了研究。结果表明:在纺制超细旦PA6 FDY时,选择孔径为0.22 mm,长径比为2.5的喷丝板,纺丝温度为260℃,纺丝速度为4 200 m/min,侧吹风温度约为28℃,速度约为0.30 m/s,相对湿度为75%时,生产稳定,产品质量优良,纤维断裂强度为4.92 cN/dtex,断裂伸长率为36.3%,条干不匀率为1.21%。An uhrafine nylon6（PA6） fully-drawn yarn（FDY） of 22 dtex/35 f was produced by blending a self-made special masterbatch and PA6 chip on a high-speed spinning unit. The effects of PA6 chip and special masterbatch drying process, spinning temperature, spinpack pressure and cross air blow speed on the production of ultrafine PA6 FDY were studied. The results showed that the ultrafine PA6 FDY of excellent quality can be steadily produced with the breaking strength of 4.92 cN/dtex, elongation at break 36.3% and yarn irregularity 1.21% when the process conditions were as followed： spinneret with hole diameter of 0. 22 mm and length-and-diameter ratio of 2.5, spinning temperature 260 ℃, spinning speed 4 200 m/rain, cross air blow temperantre about 28 ℃, relative humidity 75% and speed about 0. 30 m/s.

关 键 词：聚己内酰胺纤维 超细旦纤维 全拉伸丝 母粒 共混纺丝 

分 类 号：TQ342.21[化学工程—化纤工业]