A Study of Tensile Properties of Twill-Woven Fabrics

Abstract

Four 8-end twill-weave structures (1/7, 2/6, 315, and 4/4) were chosen to study the tensile behavior of fabrics in relation to the varying float length and the number of picks per inch. For each weave structure at a given warp set, a range of picks per inch was woven. Warp sets were 30, 44, and 60 ends per inch. The results indicate that, with increase in float length, the warp strength decreases. With increasing float length, localization of rupture and binding effect decrease, thereby reducing the strength. There is practically no effect of tloat length on the weft strengths. Further, the wap strength of the fabric increases with picks per inch ul to a certain limit and then it starts decreasing This limit depends upon the nature of the weave. Atso, the dependence of elongation on maximum float length and number of picks per inch is discussed