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Effect of percentage of short fibers removed from cotton during spinning on the properties of dyed polyester/cotton‐blended knitted fabrics

The aim of this study was to assess the effect of the percentage of short cotton fibers removed during spinning on the properties of dyed polyester/cotton‐blended knitted fabrics. Combing of cotton fibers was done at 12% and 18% short fiber removal (noil%) before spinning into yarns with a polyester/cotton‐blending ratio of 52:48. The yarns were then knitted into 1 × 1 rib structure on a 20‐gauge, 20‐inch diameter double jersey machine. The knitted fabrics were pre‐treated and dyed with disperse/reactive dyes. After dyeing both the fabrics with 12% and 18% short cotton fiber removal, they were tested for their physical properties. It was found that the increase in the percentage of short fiber removal from 12% to 18% does not result in any significant enhancement of the fabric properties. Hence, a noil% of 18% is not justified for 52:48 polyester/cotton‐blended knitted fabrics. Savings of 6% in the cotton fiber may be made by keeping the noil% at 12%.