The Dyes are classified based on the fibers to which they can be applied and the chemical nature of each dye. Dyes are complex unsaturated aromatic compounds fulfilling characteristics like intense color, solubility, Substantiveness, and fastness. Dyes can be defined as the different type of coloring particles which differ in each type from the other in chemical composition and are used for coloring fabrics in different colors and shades which are completely soluble in liquid media.
Dyeing can be performed using continuous or batch processes. Yarn dyeing is used to create interesting checks, stripes, and plaids with different-colored yarns in the weaving process. Substances which cause these changes are called dyestuffs.
Dyeing operations are used at various stages of production to add color and intricacy to textiles and increase product value. It chemically changes a substance so that the reflecting light appears colored.