Abstract
The structure of fasciated yams, spun from 2.4 dtex, 51 mm acrylic fibers on an air-jet experimental machine, consisted of an untwisted core of fibers and a surface layer of fibers wrapped around the greater part of the core length. The surface fiber wrapping varied markedly in appearance and gave distinctive, reoccurring features along the yam length. These features were grouped into three classes based on the presence and the orderliness of the wrapping fibers. The mean length and frequency per meter of yam were obtained for each class, and the effects of the machine variables on these structural parameters and the yam properties were determined. Statistical analysis showed that the changes in the structural parameters correlated significantly with changes in the measured yam properties.
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