Cotton Fiber Imperfections and Their Probable Relation to Yarn Quality

Abstract

In this paper the common imperfections occurring in cotton fibers have been studied in order to determine (1) the growth factors contributing to the formation of such imperfec tions and (2) the importance of imperfections as factors which contribute to neppiness in spun cotton.

An analysis was made of several hundred neps occurring in both carded and combed yarns which showed that they were composed of ten different elements. Although there is no con clusive proof that fiber imperfections are the cause of such neps it is shown that more neps contain immature fibers than any other element. It is also shown that fibers of large diameter and deformities are factors which contribute to neppiness and thus to spinning difficulties in greater proportion than their prevalence in cotton would indicate.

Get full access to this article

View all access options for this article.

References

Farr, Wanda K. , Cotton Fibers—IV: Fiber Abnormalities and Density of Fiber Mass Within the Boll. Contribution from Boyce Thompson Institute, 6, No. 4, pp. 471-478, 1934.

Clegg, Gladys G. , Stapling of Cottons: Laboratory Methods in Use at the Shirley Institute, 1931 (British Cotton Industry Research Association). J. Text. Inst. , 23, No. 2, pp. T35-54, 1932, and Shirley Institute Memoirs, 11, pp. 1-20, 1932.

Cook, O.F. , and Willis, A.Y. , Jr., Uniformity of Cotton Fiber Determined by Field Inspection. Circular No. 310, United States Department of Agriculture, 1934.

Peebles, R.H. , and Fulton, H.J. , Ratooned S X P Cotton. Circular No. 693, United States Department of Agriculture, 1944.