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Asian Journal of Textile

Year: 2012 | Volume: 2 | Issue: 3 | Page No.: 32-43
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Authors

J. Ochola

J. Kisato

L. Kinuthia

J. Mwasiagi

A. Waithaka

Keywords

Research Article

Study on the Influence of Fiber Properties on Yarn Imperfections in Ring Spun Yarns

J. Ochola, J. Kisato, L. Kinuthia, J. Mwasiagi and A. Waithaka
Fiber to yarn conversion process has been affected by several factors which include properties of raw material, level of technology, machinery and skill of machine operators. In cotton fibre spinning, the cost of raw material plays an important role, since it accounts for over 50% of the total cost of the ring spun yarn. Yarn imperfection (neps, thick and thin places) on the other hand is an important yarn parameter which affects yarn and fabric processing, and quality parameter. In this study, the relationship between fiber properties and yarn imperfections has been investigated using statistical and Monte Carlo techniques. The linear regression analysis developed models that generated coefficient of regression (R) value of 0.68, 0.65 and 0.68, respectively for neps, thick and thin places, respectively. The sensitivity analysis for statistical models showed that yarn twist, micronaire value, fiber maturity, trash area, fiber length, fiber strength and fiber yellowness are the influential factors for affecting yarn imperfections. Others factors that included trash grade, fiber uniformity, spinning consistency index, fiber reflectance, yarn linear density, trash content, fiber elongation and short fiber index should also are considered while studying yarn imperfection of cotton ring spun yarns.
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