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Pigments >>
![Pigments]( "Pigments")
A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which a material emits light. Pigments are used for coloring paint, ink, plastic, fabric, cosmetics, food and other materials.
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Dyes >>
![Dyes]( "Dyes")
A dye is a colored substance that has an affinity to the substrate to which it is being applied, the dye is generally applied in an aqueous solution, and many require a mordant to improve the fastness of the dye on the fiber.
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