34—A GENERALIZED EQUATION FOR PREDICTING THE LEA STRENGTH OF RING-SPUN COTTON YARNS

Abstract

Abstract An equation for predicting the lea strength of ring-spun cotton yarns is evolved by correlating a function of the lea strength, namely. Bogdan's intrinsic-strength parameter, P, with an integrated fibre-quality index, Q, the regression coefficients being allowed to account for the effect of the spinning conditions. The equation is shown to be a good fit for a wide range of cotton yarns, spun under different spinning conditions. It overcomes many of the drawbacks of the linear-multiple-regression equations and some of the earlier curvilinear equations. A possible improvement of the new equation is also suggested.