Cotton Sirospun® yarn has a circular cross-sectional shape, with the two strands segregated and consolidated into an adjacent array. When it is untwisted, the strand twists in an alternate direction. When compared to single yam with the same linear density and twist multiplier, cotton Sirospun yam is superior in tenacity, evenness, hairiness, and abrasion resistance. Although cotton Sirospun yam is less hairy and more extensible than two-plied yarn, it is inferior to two-plied yam in evenness and imperfections.
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