Impact of Fibre and Yarn Parameters on the Surface Friction of Cotton Yarns

Abstract

One of the most frequent problems on the machines for manufacturing surface materials is the friction between yarn and metal. It depends on a series of parameters: parameters independent on yarn, parameters dependent on yarn properties and parameters dependent on the element against which friction is performed. The paper explores surface friction of cotton yarns spun from Egyptian Cotton Giza 75 FG, Sudan Cotton XG5B“ and the high-quality White Turkish Cotton which are used as warp yarn. The yarns were made in four counts: 14, 17, 20 and 25 tex, and each of them contained different noil percentages: 14, 16, 18 and 20 %. The test results of the mentioned yarns indicated the fact that the surface coefficient of yarn friction depends on cotton type and fiber quality parameters, but it does not significantly depend on yarn count and noil percentage, and friction coefficient is lower for the cotton containing shorter and coarser fibers on average.