Using Cotton Sliver Draft Force to Evaluate Textile Processing Efficiency, Part I
USING COTTON SLIVER DRAFT FORCE TO EVALUATE TEXTILE PROCESSING EFFICIENCY, PART I D. D. McAlister, III, J. D. Bargeron, L. C. Godbey ABSTRACT. Fiber bundles in sliver form more closely represent the fiber bundles commonly used in commercial testing. Therefore, this experiment focused on studying drafting force using untwisted fiber bundles (sliver) rather than twisted fiber bundles (roving) as had been previously studied. Four cottons of similar micronaire but different lengths were utilized for this experiment. Ring spun yarns of three different linear densities were produced from each cotton to cover the range of coarse to fine yarns commonly produced in a textile mill. Fiber quality, processing quality, and yarn quality were measured for each cotton in addition to finisher sliver drafting force. The analysis of the data indicates that short fiber content has the greatest impact on drafting force. In addition, it appears to be possible to determine processing waste and spinning efficiency levels through the determination of drafting force of sliver. Keywords. Cotton, Textile processing, Fiber quality, Short fiber content, Drafting force. pinning technology is advancing far beyond predict- and against metal (fiber-to-metal) and found a strong rela- ing cotton fiber performance from the fiber proper- tionship (r = 0.85) between fiber crimp and fiber-to-fiber co- ties reported by High-Volume Instruments (HVI) hesion with a RotorRing test method. In earlier work, and used for the marketing of cotton. Currently the convolutions in cotton fiber (similar to crimp in synthetic fi- fiberS properties measured by HVI are length, length unifor- ber) were found to play an important role in the friction be- mity, strength, micronaire, color, and trash.
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