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Azoic dyes

Azoic dyes are insoluble pigments formed within the fibre by padding.



Dips are used to describe fabric or yarn when in the dye. Indigo yarns dipped in an indigo bath usually 6 times but up to 16 times.


Madder has been cultivated as a dyestuff since antiquity in central Asia and Egypt, where it was grown as early as 1500 B.C. Cloth dyed with madder root pigment was found in the tomb of the Pharaoh Tutankhamun and in the ruins of Pompeii and ancient Corinth.


Over-dye is a fabric dye process on denim fabrics. Most frequently used on indigo or black denim fabric, this is over-dyed black and when coloured jeans are in trends.