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Dyes and PigmentsNatural dyesNatural dyes are derived from nature, from animal, vegetable and mineral matter. The difficulty was making them colourfast. The treatment of fabrics before dying with mordants, natural acids or oxides, will fix the natural dye on and in the fiber. Madder-red Woad- indigo-blue Cochenille-vivid red Shellfish-purple Saffron- yellow
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