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    Comparative Analysis of Production Processes and Quality Parameters of Two Different Semi-Combed Yarns

    Khan, Md Rubel, Dip, Tanvir Mahady, Rashid, Md Ehsanur, Haque, Raihan Ul, Neloy, Farhan Kabir, Salehin, Sayed Mohammad Minhajus, Galib, Safwan and Muhammad Sayem, Abu Sadat ORCID logoORCID: https://orcid.org/0000-0003-3034-7892 (2023) Comparative Analysis of Production Processes and Quality Parameters of Two Different Semi-Combed Yarns. Journal of Natural Fibers, 20 (1). 2163333. ISSN 1544-046X

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    Abstract

    Semi-combed yarn represents a type of ring-spun yarn produced by modifying the typical carded and combed yarn manufacturing process. Carded yarn is inferior in quality, while combed yarns are not cost efficient. The semi-combed yarn has therefore emerged as an alternative to fully combed yarn to facilitate a reasonable quality-cost compromise. This paper reports two manufacturing techniques and associated features of the cotton ring-spun semi-combed yarn of the same count. One process involves sliver mixing in draw frame, and the other by reducing the noil extraction percentage in comber. The aim of this study is to run a comparative analysis of both the end products against themselves and their carded and combed counterparts to establish their acceptance in the industrial scale. Important quality parameters such as unevenness (U%), coefficient of variation (CVm%), thick place(+50%)/km, thin place(−50%)/km, neps(+200%)/km, hairiness (H), strength, elongation, CSP, and cost have been evaluated, analyzed, and compared among these products. In several cases, the quality of semi-combed yarn was comparable to fully combed yarns and better than carded yarns. This offers a cost-effective and sustainable alternative to combed yarn. Comparison shows that the noil extraction process offers less hairiness, and more sustainability and involves no extra operation to develop the yarn.

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