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US 10,301,475 B2Granted
Heavy metal free, blue and navy fibre-reactive dye mixtures
AssigneeDryStar Colours Distribution GmbH
InventorsAdrian Murgatroyd, Manfred Hoppe, Clemens Grund, Brian Connolly, Thomas Stepanski
Life of this patent
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Abstract
The invention relates to mixtures of fiber-reactive Triphendioxazine dyes with other fiber-reactive azo dyes and their use for the dyeing of hydroxyl- and especially carboxamide-containing material in blue and navy shades.
Claims15
A dye mixture comprising at least one dye of formula (I)
- and at least one dye (II) selected from the group consisting of:
- wherein independent of each other
- A is OH and B is NH2 or A is NH2 and B is OH,
- D is (C1-C4)-alkyl or Cl,
- R1 is hydrogen or (C1-C4)-alkyl,
- R2 is hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy or sulfo,
- Z1 is —CH═CH2, —CH2CH2G or hydroxyl,
- wherein
- G is hydroxyl;
- halogen;
- ester groups of organic carboxylic and sulfonic acids;
- or acidic ester groups of inorganic acids;
- X is Cl or F,
- and
- M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal and.
12 more elements
A process for dyeing a carboxamido-containing material which comprises contacting the material with a dye mixture comprising at least one dye of formula (I)
- and at least one dye of formula (II)
- wherein independent of each other
- A is OH and B is NH2 or A is NH2 and B is OH,
- D is (C-C4)-alkyl or CI,
- R1 is hydrogen or (C1-C4)-alkyl,
- R2 is hydrogen, (C1-C4)-alkyl, (C1-C4)-alkoxy or sulfo,
- Z1 is —CH═CH2, —CH2CH2G or hydroxyl,
- wherein
- G is hydroxyl;
- halogen;
- ester groups of organic carboxylic and sulfonic acids;
- or acidic ester groups of inorganic acids;
- X is Cl or F,
- n is 2 or 3 and
- M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal and
- with the proviso that formula (II) is not of the formula (II-2)
13 more elements
A dye mixture comprising at least one dye of formula (I) which is selected from the group consisting of (I-1)-(I-10)
- and at least one dye of formula (II) which is selected from the group consisting of (II-1), (II-2) and (II-3)
- wherein independent of each other
- M is hydrogen, an alkali metal or one equivalent of an alkaline earth metal.
Dependencies are inferred from the claim text.