A Study of the Influence of Fibre Properties on the Characteristics of Rotor-spun Yarns by Factor Analysis

Abstract

The influence of important fibre properties such as the 2.5% span length, Micronaire value and breaking tenacity on the characteristics of 30-tex yarns spun on the rotor-spinning system from 32 different varieties of Indian cotton has been investigated by the technique of factor analysis by using the SPSS package on a DEC 2020 computer. The behaviour of corresponding ring-spun yarns from the same cottons has also been evaluated for comparative interpretation. Factors expressed in terms of variables lead to the development of new expressions for yarn and fibre quality indices. The method of factor analysis used in the present study confirms a lower degree of exploitation of fibre properties into the yarn characteristics of rotor-spun yarns as compared with ring-spun yarns, which is attributed to the difference in structure of these two types of yarn. Factor loadings obtained by the iterative rotation of the correlation matrix indicate a much higher impact of cotton fibre length on the rotor-spun yarns than...