The Response of Textured Yarn Properties to Process Variables in Relation to Barré

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Abstract
A thermomechanical analysis technique has been used to characterize a set of false-twist pin-textured polyester yarns. These yams were generated under a wide range of texturing conditions from two distinct lots of fully-drawn feed yarn which differed in orientation. The analysis yielded a variety of thermomechanical yarn parameters. One set of parameters had some of the properties of an “effective yarn-texturing temperature.” A different set of parameters correlated with the tensile, shrinkage, or crimp parameters of the yarns and were sensitive to the effects of feed-yarn orientation differences. Other parameters correlated with textured yarn dyeability. Measurements of this type should prove valuable in the quality control of textured yarns and in the diagnosis of yarn faults.