Direct Dye - Liquid Concentrate, Anionic Sulfonate Soluble, Enhanced Light Fastness

we are indulged in manufacturing and supplying an Direct Dye in Ludhiana, Punjab, India. Direct dyes are another class of dyes, one of the two types of dyes that are mixed in 'all purpose' dyes such as Rit. (The other type in the mixture is an acid dye, which will not stay in any cellulose fiber for long.) The colours of direct dyes are duller than those provided by fiber reactive dyes, and the wash fastness is poor - expect anything dyed with them to 'bleed' forever. The one advantage is that direct dyes may be more light fast, that is, resistant to fading in the light, than fiber reactive dyes. The "direct dye" classification in the Colour Index system refers to various planar, highly conjugated molecular structures that also contain one or more anionic sulfonate group. It is because of these sulfonate groups that the molecules are soluble in water. Though most direct dyes still can be obtained in powder form, it is increasingly popular to receive them as liquid concentrates.