Processing of Weft-Stretch Spandex Woven Fabrics - Issuu

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As compared with ordinary cotton 100% fabric, width of weft-stretch SPANDEX fabric should be shrinked in the weft direction during the processing and therefore it is recommended to carry out processing of fabric proper after grasping the relationship among the three, namely, grey fabric width, finishing width and weft stretchbility (generally, about 20%30% shrinkage in the weft direction) [3,4]. Fabrics containing Spandex elastane yarn require careful control of processing conditions to preserve the intrinsic elastic properties of the fiber, while obtaining the required fabric characteristics. These dyeing and finishing conditions should be chosen with care, because the performance of Spandex elastane can be changed by prolonged hot/wet treatments, certain chemicals excessive tension and high temperature. It is therefore, necessary to be fully aware of the physical changes required to develop the desired weight, width, stability and stretch [1]