Papers

DYEING PERFORMANCE OF DIRECT AND REACTIVE DYES IN EXHAUST METHOD ON COTTON KNITTED FABRIC (Pages : 29 - 34)

M.M. BASHAR, M.A. AL MAMUN, M.M. RAHMAN, M.A.B. SIDDIQUEE AND T. HOSSAIN

Reactive and direct dyes are very popular choice in dyeing cotton fabric. They have wide range of color gamut. This paper represents the comparative dyeing performance of reactive and direct dyed fabric. Two reactive dyes namely Dychufix Red 6B-XF H/C and Dychufix Brilliant Yellow 4GL and two direct dyes Moder Direct Red BWS and Moder Direct Yellow PG were used respectively. Color fastness to water, washing, perspiration, rubbing and light were measured according to ISO norm. The color strength was measured by spectrophotometer. It was found from the study that color strength of reactive dyes was higher than that of direct dyes. The electrolyte used in dyeing reactive dye was higher than that used in direct dyes. All the wet fastness of direct dye is significantly poor whereas reactive dyed fabric showed the better results in this respect. But color fastness to light of direct dyed fabric is considerably higher than reactive dyed fabric.Download


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