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A Study of Count Variation in Commercially Produced Single Yarns of All Types

Ontario Research Roundation, Toronto, Canada

Three surveys have been made of the count variation of all types of single yarn. The sampling covered 291 mills in 26 countries; 1155 yarns were inctudcd in counts of 1.7 to 6400 tex, some. filament, the others spun on the worsted,. cotton, bast-fiber, woollen, and condenser systems. Because of the broad coverage, the survey yarns are believed to be representative of general production.

Different levels of count variation were observed for the various spinning systems. but, within each system, the prevailing count variation was found to be independent of yarn count and, in most cases, of the fiber used. The observed count variation was analyzed into components of variance, and the ways in which they can arise in a spin ning mill are discussed. A comparison is made of the count variation obtained with "whole" and with "half" (approximately 100-m and 50-m) skeins. Ratings of count variation are proposed.

Textile Research Journal, Vol. 36, No. 6, 506-534 (1966)
DOI: 10.1177/004051756603600604


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