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COMPARISON OF YARN TENACITY DATA OBTAINED USING THE USTER TENSORAPID, DYNAMAT II, AND SCOTT SKEIN TESTERS

  • 출판일1992.06
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 260
Tenacity data from three different yarn testing machines were compared to show mathematically how single strand and skein tenacities differ, and how the single strand yarn tenacity is affected by the time-to-break parameter. USDA Acala cotton fibers were ring-spun into five different yarn sizes, each with five different twist factors. The machines calculated yarn, and the effective fiber lengths acting in each yarn; the data were then normalized. Normalization showed that the yarn tenacity data were independent of yarn size and twist factor, and that the effects of time-to -break and skein strength parameters differed from machine to machine with normalized magnitudes decreasing in the order Dynamat II, Tensorapid, Scott. All three machines gave identical results for the square root of normalized yarn tenacity, percent broken fibers, and effective fiber length. 18 refs.
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