A process through which molecules imparting colour are chemically bonded to fibers. The fibers may be un-spun, or in the form of yarns or fabrics, during the dyeing process.

The processes involved in the permanently colouring a fibrous material by chemically bonding colour imparting molecules to the fibres. The fibers may be un-spun, or in the form of yarns or fabrics, during the dyeing process. A variety of different dyes can be used such as vegetable dyes, mineral dyes, natural dyes and chemical dyes.