Kinetics of Reactive Dyed Pretreated Cotton Fabrics With and without using Salt

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Abstract

Most of the cotton fabrics at present are dyeing using reactive dyes which requires large quantities of salt, further produce large amount of effluent load to the environment in the form of more salinity in the effluent water along with other pollutants. In order to reduce the salinity in the waste water lot of investigations were carried out. Cotton fabrics pretreated with chitosan were dyed with reactive dyes. Pretreated samples were dyed without using salt as an electrpolyte. The influence of pretreatment on kinetics in dye bath i.e rate of dye particle movement towards the fabric, wash fastness, rubbing fastness was determined. The results of this study shows that the pretreatment of cotton with chitosan increases dye uptake and shows good fastness to washing and rubbing same as that of conventional way of dyed samples. It was determined that chitosan was effective cross linking agent in salt-free dyeing of cotton fabrics.

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Venkatesh*, B., Chavhan, Md. V., … Kumar, M. S. J. (2019). Kinetics of Reactive Dyed Pretreated Cotton Fabrics With and without using Salt. International Journal of Recent Technology and Engineering (IJRTE), 8(4), 9723–9726. https://doi.org/10.35940/ijrte.d9191.118419

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