Reactive dye mixtures, used for dyeing and printing fibrous material with hydroxyl or carbonamido groups, contain sulfonated amino-naphthol disazo and monoazo dyes and optionally other dyes

摘要

Reactive dye mixtures contain one or more, e.g. 2 or 3, preferably 1 or 2 each of 8-amino-2,7-disazo-1-naphthol-3,5(6)-disulfonic acid dye(s) (I) and 7-amino-8-azo-1-naphthol-3-mono- or 3,6-disulfonic acid dye(s) (II) and optionally other mixing or nuancing dye component(s) (III), where (I) has 1 or 2 optionally further substituted N-phenyl-, N-naphthyl- or N-alkyl-carbamoylphenyl-azo groups. Reactive dye mixtures contain one or more, e.g. 2 or 3, preferably 1 or 2 each of 8-amino-2,7-disazo-1-naphthol-3,5(6)-disulfonic acid dye(s) (I) and 7-amino-8-azo-1-naphthol-3-mono- or 3,6-disulfonic acid dye(s) (II) of the given formulae and optionally other mixing or nuancing dye component(s) (IIIa-f). D1, D2 = substituted carbamoylphenyl in one or both cases, otherwise phenyl or naphthyl; D3 = as D1, D2 or amino-sulfo-phenyl. The full definitions are given in the DEFINITIONS (Full Definitions) Field. Details of optional dyes (IIIa-f) are given in the TECHNOLOGY FOCUS (Organic) Field. Independent claims are also included for the following: (1) Three methods of preparing the dye mixtures; (2) Aqueous liquid preparations containing one of these dye mixtures, with a total dye content of 5-50 wt.%.