数码转杯纺成纱原理及其纱线特点

为开发新颖的纱线品种，提高纱线生产效率，提出数码转杯纺成纱方法并介绍其原理，对成纱色彩特点进行研究。数码转杯纺采用３ 组分异步喂入的方式，纤维通过分梳辊的梳理和混合，在转杯内离心力作用下再次混合并凝聚成须条，经加捻后成纱，再由引纱罗拉导出形成特种纱线。该工艺过程可随机调控转杯纺成纱的线密度及混纺比，生产多种混合均匀的混色纱和混纺纱品种。分别纺制了混色纱、变色纱、段彩纱、竹节纱、彩节纱和双变纱等典型数码纱，并对其色彩特点进行分析，总体来说数码转杯纱不同颜色的单纤维混合均匀，纱线颜色柔和。

Mechanism and characteristics of digital rotor spun yarn

In order to develop new varieties of yarns and improve the efficiency of yarn production, the method and principle of digital rotor spinning process were explored and the color characteristics of its products were studied. During digital rotor spinning process, three rovings were delivered into three-component asynchronous feeding rollers. Then they were combed and mixed by carding roller, mixed again in the rotor under the action of centrifugal force and condensing into sliver, and then twisted and wound to form special yarn. By this novel process, the linear density and blending ratio could be controlled online with digital controlling system. Melange yarn, gradient melange yarn, period melange yarn, slub yarn, color pointed melange yarn and yarn with changing linear density and draft ratio were produced and analyzed, respectively. It can be concluded that single fiber with different colors are well blended during spinning process, and digital yarns show soft colors.