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The Relationship Between the Bulk of a Relaxed Skein and the Tactile Properties of the Resultant Woven and Knitted Fabrics

P. Radhakrishnaiah, A.P.S. Sawhney


This work is an attempt to develop some simple and realistic tools that can be applied by textile manufacturers to control the apparel quality of yarns produced at high production rates. The approach used in this work is based on the assumption that certain differences in the tactile behavior of woven and knitted fabrics made from rotor-spun yarns are reflected in the wet relaxation behavior of the yarns and fabrics. Differences in the wet relaxation behavior can be expected to arise as a result of the differences in spinning parameters such as yarn twist level, spinning tension, fiber disposition and yarn structure.

Results obtained on 100% cotton rotor yarns produced under two sets of spinning conditions revealed the differences in the apparel quality of these yarns. Results also revealed how the differences in yarn bulk and relaxation properties translate into fabric tactile behavior. Physical measurements made on relaxed skeins demonstrated how yarn manufacturers can readily monitor the apparel quality of yarns produced on high speed rotor spinning machines so as to maintain the tactile quality of the resultant woven and knitted fabrics within acceptable limits. Yarns produced with certain rotor and doffing tube combinations yielded relaxed skeins that were shorter and thicker than those produced with other rotor and doffing tube combinations. The yarns representing short and bulky skeins produced some what bulky and soft fabrics. The compression properties of the relaxed skein showed very good correspondence with the compression properties of the relaxed fabrics.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pp. 1497 - 1499
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998