Question

explain dyes with example ​

Answer 1

A dye is a colored substance that chemically bonds to the substrate to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. The dye is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber.[2]

Chemical structure of indigo dye, the blue coloration of blue jeans. Once extracted from plants, indigo dye is almost exclusively synthesized industrially.[1]

Both dyes and pigments are colored, because they absorb only some wavelengths of visible light. Dyes are usually soluble in water whereas pigments are insoluble. Some dyes can be rendered insoluble with the addition of salt to produce a lake pigment.