Some Factors Affecting Open-End-Spun Cotton Yarns

Abstract

The spinning variables of two cottons with widely differing fiber properties (one cotton long and strong, the other short and weak) were studied. The cottons were used in their 100% forms and in 2:1- and 1:2-ratio blends. The relationships of the mechanical-spinning variables (rotor speed, rotor diameter, and feed-plate setting) to yarn strength, fiber-wrapper formation, and yarn uniformity were determined. Fiber composition in the blend affects open-end yarn strength significantly more than the change in rotor speed or yarn size. Fiber wrapper and yarn strength are inversely related for a given cotton, and rotor speed affects fiber-wrapper formation much more than it affects yarn strength. Furthermore, cotton with longer staple length tends to be more susceptible to fiber-wrapper formation.

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References

Am. Soc. Test. Mat., "Annual Book of ASTM Standards," Parts 32 and 33, 1979.

Anon., Cotton Fiber Properties and Open-End Spinning, Textile Topics (Textile Research Center, Texas Tech University, Lubbock, Tex.) 3(6):1 (Feb, 1975).

Barella, A. , Tura, J.M. , and Vigo, J.P. , Belts in Open-End Yarns; Influence of Rotor Diameter and Statistical Distribution , Textile Res. J. 47, 389-394 (1977).

Lord, P.R. , The Structure of Open-End Spun Yarn, Textile Res. J. 41, 778-784 (1971).

Louis, G.L. , Fiori, L.A. , and Leitz, L.A. , Relationships Among Fiber Properties, Yarn Properties and End Breakage for Medium Staple Cottons. Textile Bull. 94, 43-48 (Apr, 1968).

Lunenschloss, J. and Kampen, W. , How Fiber Length and Coefficient of Fiber Friction Affect the Formation of Wrappers, Melliand Textilber. (English Ed.), 199 (Mar, 1978).

Ramey, H.H. , Lawson, R. , and Worley, S. , Relationship of Cotton Fiber Properties to Yarn Tenacity, Textile Res. J. 47, 685-691 (1977).

Sengupta, A.K. , Dutta, B. , and Radhakrishnaiah , P. , Studies on Fiber Belts in Rotor-Spun Yarns, Textile Res. J. 50, 228-230 (1980).

Simpson, Jack and Murray, Michael F. , Effect of Cotton Fiber Fineness and Strength on Mechanical Processing and Open-End Spinning and Yarn Properties , Textile Res. J. 48, 270-276 (1978).

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Vaughn, E.A. and Rhodes, J.A. , The Effects of Fiber Properties and Preparation on Trash Removal and Properties of Open-End Cotton Yarns, Am. Soc. Mech. Eng. 76-Tex-7, 1-6.