Organic Dyes

The fundamental difference between it and the dye is that the dye can be dissolved in the dyeing medium used, while the pigment neither fills the medium in which it is used nor the substrate to be colored. Excess Pigments and dyes are chemically identical in structure, and can be converted into each Other by different methods of use, so that certain vat dyes and sulfurized vat dyes can be used as fiber dyes if they are reduced to leuco. If it is not reduced, it can be used as a pigment as an advanced ink. Organic Pigments are widely used in inks, paints, coatings, synthetic fiber coloring, as well as fabric printing, plastics and rubber, leather coloring, etc., in which the ink is used in the largest amount. At present, the volume of organic pigments accounts for about a quarter of the total volume of the dye.