Impact of Piecing Index on Combed Yarn Quality

After combing operation is completed, the detaching rollers feedback a part of the previously formed web. The nippers swing forward and lay the just combed fringe onto the web portion projecting from the detaching rollers. This is called piecing of web in comber machine. Many parameters such as fibre properties, machine settings and process parameters affect the piecing and thus yarn quality. In this paper, the effect of piecing index on combed yarn quality was studied. Conventional and high speed comber machines were chosen and samples were taken by changing various piecing index. Based on the study, piecing index influences the sliver U , yarn IPI and classimat faults. Smaller variation in piecing index severely affects the sliver and yarn quality and no rule to determine the optimum piecing index for a particular process. A. Muralikrishnan "Impact of Piecing Index on Combed Yarn Quality" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-7 , December 2022, URL: https://www.ijtsrd.com/papers/ijtsrd52536.pdf Paper URL: https://www.ijtsrd.com/engineering/textile-engineering/52536/impact-of-piecing-index-on-combed-yarn-quality/a-muralikrishnan