e textile industry is one of the oldest and largest industries on a global level, and while dyes and pigments of natural origin have been used for coloring clothing and other purposes since 3000 BC, it is only within the past 200 years that a wide variety of synthetic dyes have begun to be produced in massive quantities.[20, 21] Textiles are classified based on the material they are made of, which in turn dictates the type of dye which is used to impart them with color; for instance, reactive, direct, and indigo dyes are used for cellulose fibers, while acid dyes are used for protein fibers and both basic and dispersed dyes are used for synthetic fibers.[22] The structures of several common dyes used for textiles, paper, foo
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