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Polyester fiber was dyed with indigo vat dye to examine the practical dyeing feasibilities and behaviors. Vat dyes, which commonly applied to the cellulosic fibers, could be considerable colorants to dye polyester substrate, especially focusing on fastness aspect in terms of washing test. In this work, the optimized dyeing conditions and behaviors were investigated. In addition, extended multiple...
The dyeing behaviors using indigo vat dye on conventional and microfiber polyester and its fastness properties to washing were examined. Acid leuco dyeing technique with acetic, formic and citric acids was considered. The effect of urea addition to improve the dye build-up was also investigated. In addition, repeated multiple washings of indigo dyeings, which were compared to the results of disperse...
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