直接纺超细纤维生产的关键技术分析

Study on the Key Technologies of Microfiber Production by Direct Spinning

本文重点介绍了直接纺丝法超细纤维制造过程中的关键技术,讨论了原料相对分子质量、喷丝孔尺寸、缓冷装置的设置、吹风冷却装置、纺程长度、纺丝速度等与纤维线密度的关系,发现凡是可以改善熔体流动性能和降低丝条拉伸张力的因素均有利于降低单纤维的线密度。

This paper focused on the key technologies of microfiber production by direct spinning, discussed the relations between fiber＇ s linear density and factors including material＇ s relative molecular weight, nozzle＇ s size, annealer and blowing set, spinning path length, spinning speed, etc. Finally, the authors concluded that all the factors which could improve melt flow behavior or reduce filament＇ s drawing stress were conductive to reduce fiber＇ s linear density.