Properties of cotton/polyester composite ring spun yarns

The article presents the results of the analysis of the properties of composite yarns spun in the cotton/polyester ring method. For this, samples were prepared in the proportions of 15.4 tex (Ne 40/1) 80/20%, 60/40%, 50/50%, and 0/100%. Samples of mixed yarns were made using medium-fiber cotton fiber (linear density 0.186 tex×length 32 mm) and polyester fiber (linear density 0.164tex×length 38 mm). Unevenness in the mass of finished yarns, thin and thick places, the number of neps, specific tensile strength, tensile strength, breaking work (B-work) were determined using USTER test instruments (Uster® Tester 6, Uster® Tensojet 4, etc.) and obtained. The parameters were checked for compliance with the Uster® Statistics 2018. The increase in the proportion of polyester fibers in mixed yarns has led to a decrease in the mass unevenness of the yarn, thin and thick places, and the number of neps; on the other hand, the specific tensile strength of the yarn, the tensile strength, the breaking work values of the yarn increased.

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