Chrome Dyeing Using Anionic Trivalent Chromium Complexes as Mordants

Chrome dyeings are normally produced by first applying an acid dye containing ligand groups and then afterchroming with hexavalent chromium derivatives such as dichromate salts. The latter can damage wool fibres and also are toxic compounds in dyehouse effluents, so afterchroming with mixtures of Cr(III) salts and organic acids has been studied