环锭纺及转杯纺和喷气涡流纺混色纱的纤维混合效果研究

为研究环锭纺、转杯纺和喷气涡流纺3种不同成纱方法对混色纱中各色纤维混合效果的影响,分别使用3种成纱方法、2种条混方式(1道并条工序、3道并条工序)纺制6种混色纱,并制作6种混色纱的横截面切片样本,通过计算汉密尔顿指数,表征混色纱中各色纤维径向分布的均匀程度,分析不同成纱方法的纤维混合规律;同时测试6种混色纱的成纱性能,分析不同成纱方法混色纱的成纱质量。结果表明:转杯纺混色纱纤维混合效果优于环锭纺和喷气涡流纺,环锭纺次之,喷气涡流纺纤维混合最不均匀;经过3道并条工序的混色纱纤维混合效果优于经过1道并条工序的混色纱;环锭纺混色纱的强度最高,喷气涡流纺混色纱的毛羽最少。

Study on fiber mixing effect in ring spun,rotor and air-jet-vortex spun color blended yarns

In order to study the influence of different yarn forming methods (ring spun, rotor spun and air-jet-vortex spun) on the mixing effect of different colored fibers in blended yarns, six types of color blended yarns were spun by using two blending methods (one-drawing process and three-drawing process) and three yarn forming methods. Cross-sectional samples of color blended yarns were made, and Hamilton index was calculated to characterize the radial distribution of colored fibers in the blended yarns. By testing the yarn properties, the yarn quality associated to different spinning methods was analyzed. The results show that the fiber mixing effect of rotor spun blended yarn is best, followed by the air-jet-vortex and ring spun yarns. The fiber mixing effect of the color blended yarns with three-drawing processes was better than that with one-drawing process, and the strength of blended ring spun yarns was the highest, and the hairiness of air-jet-vortex spun blended yarns was the least.