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Abstract

Mechanical and thermal coring techniques were used to create a series of wool/polyester (65/35) blend staple yarns with varying percentages of wool fiber in the outer layer of yarn (WOLY) (one- fifth yarn diameter-% WOLY). A maximum value of 94% WOLY was achieved via controlled relaxa tion of a high-shrink polyester as the blending fiber. While the techniques employed do not result in a reduction in fiber packing density, a lower level of yarn lateral coherency is created, which manifests itself in reduced pilling and abrasion resistance and lower flexural rigidity of fabrics knitted from these cored yarns. The aesthetic qualities of the fabrics produced from the blend yarns studied are not enhanced by polyester fiber coring.

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Development of Cored Wool/Polyester Blend Yarns and Their Evaluation in Fabrics

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