Dye mixtures useful for dyeing and printing polyester and cellulose acetate contain N-(3-(2-methoxyethoxy)-propyl-, N-3-methoxypropyl and N-3-ethoxypropyl-1,4-diamino-anthraquinone-2,3-dicarbimide

摘要

Dye mixtures contain, as essential components, three N-3-alkoxypropyl-1,4-diamino-anthraquinone-2,3-dicarbimide compounds, comprising the N-(3-(2-methoxyethoxy)-propyl compound (IA), N-3-methoxypropyl compound (IB) and N-3-ethoxypropyl compound (IC). Dye mixtures contain, as essential components, three N-3-alkoxypropyl-1,4-diamino-anthraquinone-2,3-dicarbimide compounds, comprising the N-(3-(2-methoxyethoxy)-propyl compound (IA), 3-methoxypropyl compound (IB) and 3-ethoxypropyl compound (IC) of formula (I): R = (IA) 2-methoxyethyl (-(CH2)2-O-CH3), (IB) methyl (CH3), (IC) ethyl (C2H5). Independent claims are also included for: (a) the preparation of the dye mixtures; (b) dye formulations containing the mixtures and a dispersant based on arylsulfonic acid-formaldehyde condensation products and/or ligninsulfonate.