Abstract
This work assesses actual increases in the cross-sectional areas of Classimat yarn faults with different spinning systems. The nature of diameter deviations of yarn faults with varying blends and yarn counts is investigated. The actual decrease in the cross-sectional area at the place of thin faults lies very close to the prescribed range of Classimat, but the actual increase in cross-sectional area of the thick faults is much higher than the Classimat range limit. Of the different materials, 100% viscose yarn thick faults show the highest percent deviation from the range limit compared to polyester-viscose, acrylic-viscose, and 100% acrylic yams for different counts and spinning systems. Thin faults, however, show no such trend with varying blends and different spinning systems.
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