Contaminants in cotton fibers cause yam regularity defects that alter their structure. The effect of these alterations on yarn strength is discussed with particular focus on seed coat fragments (SCF), one of the primary cotton contaminants from the fiber to the finished product. This paper presents the results of an experimental study showing that, in certain cases, the presence of SCF has a significant effect on yarn strength. This effect is closely correlated with fiber quality, and a discussion of this interaction is presented on the basis of different statistical methods.
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References
1.
1. Bargeron, J. D., and Garner, T. H., Cottonseed Fragment Contamination and Fabric Imperfections, Trans. ASAE34(4):1575–1582 (1991).
2.
2. Chambers, J. M, Cleveland, W. S., Kleiner, B., and Tukey, P. A., “Graphical Methods for Data Analysis,” Wadsworth International Group, Duxubury Press, Belmont, CA, 1983.
3.
3. Frydrych, I., A New Approach for Predicting Strength Properties of Yarn, Textile Res. J.62(6):340–348 (1992).
4.
4. Frydrych, R., Krifa, M., Tamime, O., Giner, M., and Gour-lot, J.-P., Detection and Counting of Two Cotton Contaminants: Seed Coat Fragments and Honeydew Deposits, in “Proc. Beltwide Cotton Conferences,” Orlando, FL, January 3–7, 1999, pp. 695–698.
5.
5. Gupta, A. K., and Vijayshankar, M. N., Seed-Coat Fragments in Cotton as Sources of Blemishes in Ring-spun Yarns, J. Textile Inst.76(6):393–401 (1985).
6.
6. Krifa, M., Contribution â l'étude de lTmpact des Fragments de Coque de Graine sur la Qualité du Fil de Coton (G. hirsutum), D.E.A Génie des Processus et des Matériaux Textiles et Paratextiles, Master's thesis, Université de Haute Alsace, Mulhouse, France, 1997.
7.
7. Krifa, M., Vydelingum, V., Gourlot, J.-P., and Frydrych, R., Seed-Coat Fragments, Effect on Carded Cotton Yarn Evenness, in “Proc. Beltwide Cotton Conferences.” San Antonio, TX, January 4–8, 2000, pp. 1538–1541.
8.
8. Matusiak, M., Frydrych, I., and Hequet, E., Seed Coat Neps–Their Assessment Methods and Changes of Their Number During Processing, in “Proc. Fiber Society Meeting,” Guimaraes, Portugal, May 17–19, 2000, pp. 1–4.
9.
9. May, O. L., and Taylor, R. A., Breeding Cottons with Higher Yarn Tenacity, Textile Res. J.68(4):302–307 (1998).
10.
10. Pearson, N. L., Neps in Cotton Yarns as Related to Variety, Location, and Season of Growth, USDA technical bulletin no. 878, 1944.
11.
11. Pearson, N. L., Seed Coat Fragments in Cotton–An Element of Yam Quality, USDA technical bulletin no. 1116, 1955.
12.
12. Price, J. B., The Suitability of Certain American Cottons for the Production of Fine Count Rotor-spun Yarn, Texas Tech University, 1987.
13.
13. Ramey, H. H. Jr., Lawson, R., and Worley, S. J., Relationship of Cotton Fiber Properties to Yarn Tenacity, Textile Res. J.47(10):685–691 (1977).
14.
14. Sawich-Towler, M., and Rogers, C.-D., Influence of Neps on Rotor Spun Yarn Strength, in “Proc. Beltwide Cotton Conferences,” New Orleans, LA, January 6–10, 1997, pp. 729–733.
