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US 8,864,850 B2Granted
Mixtures of reactive dyes and their use
AssigneeHuntsman International LLC
InventorsAthanassios Tzikas, Georg Roentgen
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Abstract
Dye mixtures comprising at least one dye of formula together with at least one dye from the group of formulae wherein the radicals have the definitions given in the claims, are suitable for dyeing or printing cellulose-containing fiber materials, while at the same time exhibiting good build-up behavior, and yield dyeings of deep shade having good fastness properties.
Claims4
A dye mixture consisting of
- at least one dye of formula
- and at least one dye from the group of formulae
- and optionally an additive selected from sodium chloride, dextrin, a buffer, a dispersant, an anti-dust, an organic solvent, a solubilizer, a thickener, a surfactant, a humectant, an anti-foam, a preservative, a fluorinated polymer, a telomer and a mixture thereof, wherein
- (R1) is sulfo,
- R2 is C1 alkoxy,
- R3, R4 and R5 are each hydrogen,
- one of the radicals Q1 and Q2 is amino and the other of the radicals Q1 and Q2 is hydroxy,
- X1 is chlorine,
- Y1 and Y3 are each a fibre-reactive radical of formula
- —SO2—Z (5a)
- T1 is a fibre-reactive radical of formula
- Z is a —CH2—CH2—U radical and U is a group that is removable under alkaline conditions,
- b is 1,
- and k is 1.
11 more elements
Dependencies are inferred from the claim text.