? Organic Pigments are insoluble organic compounds that are typically added to substrates in a highly dispersed state to color the substrates. 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 can be converted into each other by using different methods of use. For example, some reducing dyes and sulfurized reducing dyes can be used as fiber dyes if they are reduced to cryptochromes; If not reduced, it can be used as a pigment for advanced inks. Organic pigments are widely used for coloring inks, paints, coatings, raw materials of synthetic fibers, as well as for printing fabrics, coloring plastics and rubber, leather, etc. Among them, ink pigments are used in the largest amount.
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