在线展丝环锭复合纺纱技术及设备

Composite spinning technology and equipment based on multifilament online-spreading method using ring spinning system

在线展丝环锭复合纺纱技术能为落棉、木棉、羽绒等偏短、偏弱纤维的高品质、细支化成纱提供专门化的先进技术,因此,回顾国内外已公开的机械、超声波、声波、电极、气吹展丝技术的原理及常用设备,尤其是对适于短绒纤维的在线展丝复合纺纱技术,包括单束展丝、分劈双束展丝、上下层分别展丝机构及纺纱方法做了讨论。同时,对短绒纤维束的裹缠保护与结构稳定和对成纱加工和成纱强度的改善作用做了介绍。显然,基于长丝在线展丝方式的复合纺纱技术不仅适用于偏短偏粗、偏弱偏脆的纤维,尤其是回用纤维,而且是传统环锭纺纱技术中的先进与创新纺纱技术。

Composite spinning technology of online filament-spreading presented in this study is considered as a specialized and advanced one which can form high-quality and high-count yarns of shorter and weaker fibers,such as noil,kapok,eiderdown,etc. Various tow spreading technologies published domestic and overseas,e. g.,mechanical,supersonic,acoustic,electrical and pneumatic systems,and the related common equipments have been presented. In particular,the review concentrates on the composite spinning technology of online spreading systematically including single tow-spreading,splitted double tow-spreading, upper-lower-layered tow-spreading, and corresponding spinning methods.Meanwhile,the stable multifilament wrap-short staple core yarn structure,yarn-forming processing,and the improved mechanism of yarn strength have been introduced. Obviously,the composite spinning technology based on online filament-spreading is not only suitable for shorter and thicker fibers,weaker and frailer ones,especially the recycled ones,but also is considered as an advanced and innovative method of the traditional ring spinning processing technology.