Reactive Dyes

Reactive dyes or fiber reactive dyes are basically a class of highly coloured organic substances. Reactive dyes uses a chromophore that contains a substituent that is quite capable of a direct reaction with a fiber substrate. It is the covalent bonds Which the reactive dyes form with the substrates that are responsible for attaching the reactive dye to natural fibers. These bonds makes reactive dyes among the most permanent of dyes. 

This can be described as: Reactive dyes + Fibre = reactive dye- Fibre ( Co-valent bonding )

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