Abstract:

In order to reduce yarn hairiness, a contacting wetting device between the front roller nip and guider in ring spinning frame was presented to wet the fiber strands. High speed camera was used to shoot the triangle section of water, the data shows the device with the bigger diameter guide wheel has a longer length of water triangle contacted with the yarn. By the tests of water consumption in spinning process, the data shows the device the bigger diameter guide wheel has more water consumption when the yarn count is the same. In the meantime, the bigger yarn count would increase the water consumption during the spinning process. Under these conditions, after the observation of yarn appearance and the data comparison of the harmful hairiness, the appearance of yarns in wet spinning is obvious improved, and the harmful bobbin hairiness of combed xotton yarn (JC) of 14.6 tex and JC 19.5 tex decreases by 35.9% and 41.1% compared with ring spinning, and the cone hairiness of JC 14.6 tex reduces by 41.6% comppared with ring spinning. The results show that the device with the guide wheel which could wet the fiber strand can both satisfy the good hairiness reduction effect and good yarn quality.

Key words: ring spinning, fiber strand, wetting device, yarn hairiness