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Are all types of fiber bleached the same way?

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Bleaching processes vary for different fibers. Cotton, naturally a grayish yellow, contains waxy and oily impurities that interfere with the action of dyes. It must be scoured and boiled in huge kettles (kiers) before bleaching. Since chlorine bleaches react with the protein of animal fibers, silk and wool are commonly bleached with hydrogen peroxide. For effective bleaching, wool must first be scoured and silk must be degummed.

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Similar questions: How is silk bleached? Why must cotton be scoured before bleaching? What bleaching processes are used for different fibers? How is cotton bleached? How is wool bleached? [ Hide these questions ]

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