论文部分内容阅读
在普通棉型涤纶短纤维生产线上,通过设计专用中空喷丝板,适当改造环吹冷却、打包系统,增设中空纤维专用松弛热定形设备,成功生产出6.67 dtex中空涤纶短纤维,并探讨了其生产工艺。结果表明:选择纺丝温度286~288℃、环吹风温度19~21℃、环吹风速度3.4~3.5 m/s、拉伸倍数3.0倍、拉伸温度85~90℃,生产的6.67 dtex中空涤纶短纤维的中空度可达30%~35%,产品质量满足后道用户要求。
In the ordinary cotton type PET staple fiber production line, the 6.67 dtex hollow polyester staple fiber was successfully produced by designing a special hollow spinneret, appropriately modifying the ring blow cooling and packing system, and adding the slab heat setting equipment for hollow fiber. Production Process. The results show that the spinning temperature is 286 ~ 288 ℃, the ring blowing temperature is 19 ~ 21 ℃, the ring blowing speed is 3.4 ~ 3.5 m / s, the drawing ratio is 3.0 times and the drawing temperature is 85 ~ 90 ℃. The production of 6.67 dtex hollow polyester Hollowness of short fibers up to 30% to 35%, product quality to meet the requirements of users after the road.