The web-nep test for predicting dye-resistant nep formation in cotton fibers is com pared with other fiber-level evaluation procedures as a means of identifying potential cloth dyeing problems. Correlations of 0.92 were found between undyeable neps seen in the dyed webs and in the dyed cloth made from the same fibers. The web-nep test gave a better indication of the magnitude of cloth neps than did instrumental mea surements of average fiber quality, including micronaire, maturity, and linear density. Modifications in the procedure to increase the efficiency of the web-nep test are dis cussed.
Get full access to this article
View all access options for this article.
References
1.
Annual Book of ASTM Standards. section 7.02, American Society for Testing and Materials, Philadelphia, PA, 1988.
2.
Cheek, L., Hsu, C., and Thibodeaux, D.P. , Web-Nep ocedure for Predicting Potential Dyeing Problems in Cotton, Textile Res. J.60, 108-112 (1990).
3.
Cheek, L., and Wilcock, A., Retationship Between Direct Dye Characteristics and Coverage of Immature Fibre Neps in Dyed Cotton Fabric, J. Soc. Dyers Color.104, 477-482 (1988).
4.
Cheek, L., Wilcock, A., and Hsu, L., Effects of Sodium Hydroxide and Liquid Ammonia Treatments on the Coverage of Neps in Dyed Cotton Fabric, Textile Res. J.56, 569-573 (1986).
5.
Crompton, R. , HVI and the Strength, Textile Horizons9 (2), 35-41 (1989).
6.
Deussen, H.Rethinking of Breeding and Marketing Methods . Cotton Int.53, 32-36 (1986).
7.
Ghosh, S., How to Measure Cotton Maturity in Seconds, Textile World135 (10), 45 (1985).
8.
Ghosh, S., Institute of Textile Technology, Charlottesvdie, VA, personal communication.
9.
Hebert, J.J. , Mangialardi, G., and Ramey, H.H., Jr., Neps in Cotton Processing, Textile Res. J.56, 108-111 (1986).
10.
Hughs, S.E., and Lalor, W.F., The Effects of Cotton Variety, Gin Type and Cleaning Levels on Cloth Imperfections: A Progress Report, in "Beltwide Cotton Production Research Conferences1986," pp. 424-425.
11.
Hughs, S.E. , Lalor, W.F., and Wahba, F.T., Relationship of Ginning and Fiber Properties to Dyeing Imperfections, Textile Res. J.58, 557-565 (1988).
12.
Linnert, A. , Nep Counting at the Card, J. Textile Inst.52, 289-295 (1961).
13.
Lord, E., and Heap, S.A., "The Origin and Assessment of Cotton Fibre Maturity," International Institute for Cotton, Manchester, U.K., 1988.
14.
Mangialardi, G.J., Jr., Neps in Ginned Lint: A Review of Research, in " Beltwide Cotton Production Research Conferences," 1985, pp. 358-362.
15.
Pearson, N.L. , Neps and SimilarImperfections in Cotton, U.S. Dept. of AgricultureTechnical Bulletin No. 396, November 1933.
16.
Sasser, P., and Hinkle, D., An Objective Measurement of Neps by AFIS, in "Beltwide Cotton Production Research Conferences," 1988, pp. 568-570.
17.
Shofner, F., President, Zellweger Uster Technologies, personal communication .
18.
Thibodeaux, D.R., and Price, J.B., Reference Method for Determination of the Maturity of Cotton Fibers, Melliand Textilber.70, E95-96 (1989).
19.
Werber, F.X. , USDA Program Gears to Improve Cotton Quality , Textile World138 (4), 50-52 (1988).
