Different types of dyestuff used in Fabric DyeingDirect Dyes: These dye staffs are generally sodium salt of sulphonic acid. They have direct affinity to cellulosic fibre. They are water soluble and need salt addition in the dye bath should be applied at alkaline or neutral condition. Poor fastness to wash but cheaper.Basic Dyes: These are generally ammonium, sulphonium or auxonium salt famous
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