Reactive Dyes

Reactive dyes are a class of highly colored organic substances, primarily used for tinting textiles, which attach themselves to their substrates by a chemical reaction that forms a covalent bond between the molecule of dye and that of the fiber.

The dyestuff thus becomes a part of the fiber and is much less likely to be removed by washing than are dyestuffs that adhere by adsorption. Different groups of Reactive dyes are available for dyeing/printing purposes with varying dyeing parameters and fastness properties.