转杯纺混色棉纱的纤维混合均匀度

为探究纤维混合方式对转杯纺混色棉纱中纤维混合程度的影响,通过不同混合方式(一并条子混合、三并条子混合和粗纱混合)所得的二组分转杯纺混色棉纱和三组分转杯纺混色棉纱的纱线横截面切片样本对转杯纺混色棉纱线中不同颜色棉纤维的径向分布规律进行分析。引用汉密尔顿转移指数方法表征混色纱中各色棉纤维径向分布的均匀程度,研究纤维混合方式对转杯纺纱线均匀度的影响。结果表明:无论采用一并棉条混合、三并棉条混合,还是粗纱混合,混色棉纱中不同颜色纤维分布均匀,纤维根数比例与设计比例相符合;混合方式对转杯纺纱线的径向均匀度没有明显影响,三通道转杯纺纱机可实现对纤维良好的混合效果。

Study on mixing uniformity of fibers in rotor-spun mixed yarns

In order to investigate the effect of fiber mixing on the degree of fiber mixing in the rotor mix cotton yarn,the radial distribution characteristics of cotton fiber with different colors in rotor spinning blended cotton yarn were analyzed by studying the cross section sample of two-component blending rotor spun cotton yarn and three-component blended rotor spun cotton yarn with different blending modes (mixed by two-slivers, by three-slivers and by roving). The Hamilton transfer index method was adopted to characterize the uniformity of the radial distribution of cotton fibers in the blended cotton yarn, and the influence of the fiber blending methods on the radial uniformity of the rotor spinning cotton yarn was discussed. The experimental results show that for the above mentioned combination modes, color fiber distribution of different mixed-color cotton yarn is uniform, and the real ratio of fiber is consistent to the designed ratio. The mixing methods have no obvious influence on the radial uniformity of the rotor spinning cotton yarns, and the three-channel rotor spinning can achieve good blending effect of the fibers.