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Your brother wants to open a Dyeing and printing unit. Explain the three varied wayshe can decorate his fabrics along with the principles of each method.​

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The process of applying color to fiber stock, yarn or fabric is called dyeing." There may or may not be thorough penetration of the colorant into the fibers or yarns.

Dyes can be used on vegetable, animal or man made fibers only if they have affinity to them. Textile dyes include acid dyes, used mainly for dyeing wool, silk and nylon and direct or substantive dyes, which have a strong affinity for cellulose fibers. Mordant dyes require the addition of chemical substances, such as salts to give them an affinity for the material being dyed. They are applied to cellulose fibers, wool or silk after such materials have been treated with metal salts. Sulfur dyes, used to dye cellulose, are inexpensive, but produce colors lacking brilliance

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