Abstract:

In order to explore the weavability variation of warp yarns in the weaving process, the warp yarns on the loom are divided into three parts: warps from back rest to the dropper, warps from the dropper to the heald, warps from the heald to the cloth-fell. Breaking strength and elongation, abrasive resistance and hairiness of the three parts of warp yarns were tested to explore the weavability variation on the loom in the weaving process. Breaking strength and elongation, abrasive resistance and hairiness under different loom speed were tested and analyzed by above-mentioned warp sectionalization test method.The test results show that compared with the warp yarns from back rest to the dropper, Breaking strength and elongation of warp yarns from the dropper to the heald decreased within 5%, the abrasive resistance of warp yarns from the dropper to the heald decreased by 15% and hairiness of warp yarns from the dropper to the heald increased by 10%. Breaking strength and elongation of warp yarns from the heald to the cloth-fell decreased within 5%, the abrasive resistance of warp yarns from the heald to the cloth-fell decreased by 25% ,short hairiness of warp yarns from the heald to the cloth-fell increased by 15%. and long hairiness of warp yarns from the heald to the cloth-fell increased by 5%.The warp properties are in decrease trend as the increase of loom speed. Moreover, when loom speed is reached to750r/min, warp properties are decreased obviously.So the loom speed for this fabric should not be set larger than 700r/min.

Key words: warp yarn, weavability, sectionalization test, loom speed