Views: 3 Author: Site Editor Publish Time: 2022-02-28 Origin: Site
Dyes are the class of organic compounds that can make other substances obtain bright and firm colors. According to the source, they can be divided into natural dyes (such as vegetable dyes, animal dyes and mineral dyes, etc.) and synthetic dyes (or artificial dyes).
According to dye properties and application methods, it can be divided into direct dyes, insoluble azo dyes, reactive dyes, vat dyes, soluble vat dyes, sulfur dyes, sulfur vat dyes, phthalocyanine dyes, oxidation dyes, condensation dyes, disperse dyes, acid dyes, acid media And acid mordant dyes, basic and cationic dyes.
Pigment is the special substance of colored fine particle powder material, generally insoluble in water, and can be dispersed in various oils, solvents and resins. It has hiding power, tinting power, and relatively stable to light. It is often used in the preparation of paints, inks, and colored plastics and rubbers, so it can also be called a colorant. From the chemical composition of pigments, they can be divided into two categories: inorganic pigments and organic pigments. In terms of their sources, they can be divided into natural pigments and synthetic pigments.
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