Carbohydrate Polymers
Carbohydrate Polymers
5 years ago

Industrial scale salt-free reactive dyeing of cationized cotton fabric with different reactive dye chemistry

Industrial scale salt-free reactive dyeing of cationized cotton fabric with different reactive dye chemistry
Dyeing of knitted cotton goods in the industry has been mostly with reactive dyes. Handling of salt laden coloured effluent arising out of dyeing process is one of the prime concerns of the industry. Cationization of cotton is one of the effective alternative to overcome the above problem. But for cationization to be successful at industrial scale it has to be carried out by exhaust process and should be adoptable for the various dye chemistries currently practiced in the industry. Hence, in the present work, industrial level exhaust method of cationization process was carried out with concentration of 40g/L and 80g/L. The fabrics were dyed with dyes of three different dye chemistry and assessed for its dyeing performance without the addition of salt. Dye shades ranging from medium to extra dark shades were produced without the addition of salt. This study will provide industries the recipe that can be adopted for cationized cotton fabric for the widely used reactive dyes at industrial level.

Publisher URL: www.sciencedirect.com/science

DOI: S0144861717306823

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