Abstract
The goal of the work is to determine the dependence of lightfastness of colours obtained by reactive dyes on the interlacing of cotton knitted fabrics. The study was carried out using cotton knitted fabrics of various interlacing: plain, rib knitted fabric 1×1 and pique. Samples of knitted fabric were previously prepared by the combined method of washing and peroxide bleaching. Dyeing was carried out by reactive dyes brand Bezaktiv Cosmos periodically. The insolation of the dyed samples was carried out on a device with a mercury-tungsten lamp. The lightfastness of the samples was evaluated according to BS 1006 UK/TN standard by determining color differences at regular intervals using a colorimeter.
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