dye (dyestuff) definition
dye (dyestuff) means an organic compound which may be used to impart colour to a substance and may be classified as Acid Dyes, Basic Dyes, Direct Dyes, Sulphur Dyes, Vat Dyes, Azoic Dyes, Ingrained Dyes, Metal Complex Dyes, Disperse Dyes, Reactive Dyes, Oil Dyes, and Water Soluble Dyes.