acetic acid acid dye acridine acrylic fiber alkali animal anthraquinone aqueous solution archaeology azo compound bark batik berry biological pigment blue blue wool scale boiling point brazilin carbene dye cellulose cellulose acetate cellulose triacetate chartreuse chemical affinity chemical reaction chromophore cochineal color component conner prairie cotton dyeing dyewoods dylon faber and faber fiber fluorene fluorone food additive food coloring green hair coloring henna india indigo dye kalamkari kool-aid lake pigment law leaf leather leheria light madder mauveine metal middle east mineral mordant nile red nitroso nylon old fustic organic compound ph indicator paper perspiration phototendering phthalocyanine pigment polish cochineal polyester potassium dichromate procion quinone reactive dye resist dyeing rhodamine root saffron safranin salt silk sodium chloride sodium sulfate solvent dye stain substantive dye substituent sulfur dye temperature thiazole tie-dye trade and use of saffron traditional dyes of the scottish highlands triphenylmethane tyrian purple vat dye vegetable water wiktionary wood wool xanthene