转杯断续复合色纺纱的研制

Spinning of Intermittent Composite Colored Yarn by Rotor Spinning

在转杯纺纱机上,从喇叭口与棉条一起喂入若干根有色饰纱,利用转杯纺的分梳牵伸作用实现对有色饰纱的切断,形成具有段彩或彩点效果的断续复合色纱;通过对转杯断彩复合纱彩点的个数、长度、间距的分析,找出影响段彩效果的因素,对纺制工艺进行优化设计。结果表明:喂入饰纱根数不能超过3根,随着喂入饰纱根数的增加,转杯段彩复合纱的段彩外观效果越明显,单位长度内彩点个数呈下降趋势,彩点平均长度随之增加,彩点间平均间距不断减少。在纺纱工艺上分梳辊转速是影响顺利纺纱的关键因素。

Several colored decorative yarns were fed into rotor spinning machine together with cotton sliver.Colored decorative yarns were cut off by carding and drafting of rotor spinning.Thus intermittent composite colored yarn with segment color or color dot effect was formed.Through the analysis of the number,length and spacing of color dots in the composite yarn,the factors affecting the segment color effect of yarn were found out.The spinning process was optimized.The results showed that the number of yarns could not exceed three.With the increase of the number of decorative yarn,the segment color appearance of the composite yarn became more obvious,the number of color dots per unit length decreased,the average length of color dots increased and the average distance between color dots decreased.Carding roller speed was the key factor affecting the smooth spinning in spinning process.