A Brief Introduction To Organic Pigments

Organic pigments are insoluble organic compounds that are usually added to the substrate in a highly dispersed state to color it. The fundamental difference between it and dyes is that dyes can dissolve in the dyeing medium used, while pigments are neither soluble in the medium in which they are used nor in the substrate being colored. Many pigments and dyes have the same chemical structure, and different usage methods can convert them into each other. For example, certain vat dyes and sulfurized vat dyes can be used as fiber dyes if they are reduced to a cryptochrome; If not restored, it can be used as a pigment for advanced inks. Organic pigments are widely used for coloring inks, paints, coatings, synthetic fibers, as well as for pigment printing of fabrics, coloring of plastics, rubber, and leather, among which ink pigments are the most commonly used. The production of organic pigments accounts for about a quarter of the total production of dyes.