Fibers, Vol. 13, Pages 135: A Comparative Investigation of Cotton Yarn Properties with Various Twist Factors During Yarn-Steaming Treatment

Fibers doi: 10.3390/fib13100135

Authors:
Wenqing Zhang
Bin Chen
Ruicheng Zhang
Keshuai Liu

In this investigation, C20S (29.5 tex) and C30S (19.7 tex) ring-spun cotton yarns with different twist factors were produced using the same technological parameters for the yarn steaming process. The experimental results for yarn snarling, tensile strength, hairiness, fineness, and unevenness were compared before and after steaming. Yarn snarling was clearly reduced in the spun yarn with a higher twist factor due to the elimination of internal stress imbalances. The fineness of the yarn increased slightly after the steaming treatment. Importantly, the tensile strength of the yarn was greatly enhanced due to the adjusted fibre internal stress resulting from the steaming treatment, especially for twist factors of less than 320. The rate of increase in tensile properties decreased as the twist factor increased. Furthermore, the yarn-steaming process was beneficial for hairiness, but generally detrimental to yarn irregularity. Notably, C20S ring-spun cotton yarns exhibited a slightly higher hairiness reduction ratio and unevenness than C30S ring-spun cotton yarns at the same twist factor. Ultimately, the influence of steaming on yarn properties was thoroughly studied to improve yarn quality with reduced snarling and enhanced tensile strength.

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Wenqing Zhang www.mdpi.com