Differences in feed-yarn orientation are shown to propagate through texturing and to influence most of the textured yarn properties, but information on feed-yarn orientation differences is lost on high-temperature dyeing. The correlations between the dyeing data and certain combinations of other yarn properties are encouragingly good. Several of the crimp, shrinkage, and tensile properties of the textured yarns are much more sensitive to feed-yarn orientation and to the texturing variables than are the dyeing measurements. The implications for barré problems are discussed.
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