Study of short staple processing of wool/cotton blends on rotor spinning system

Abstract

This study examined the processing of wool! cotton blends on the open-end rotor spinning system. The intent is to take advantage of higher production speeds possible with this system. Optimization of the spinning parameters may enable the commercial production of wool! cotton blend yarns with sufficient quality for coarse knitting and weaving applications. Three differentwool!cotton blends were tested. These were 75% wool /25% cotton, 50% wool /50% cotton, and 25% wool / 75% cotton. The fiber properties are listed in Table 1. Yarns were spun at 6N e on the Rieter Ml/1 system, using a 45mm rotor. Three twist multipliers' (4.5,4.8 and 5.42) and three rotor speeds (55,000, 50,000 and 45,000 rpm) were used, in order to cover the optimum parameters for spinning. . Resulting yarn properties examined included count:-strength-product (measured on Scott Pendulum Tester), single yarn tensile properties (on Uster Tensorapid), and yarn evenness (on U ster T~ster 3)