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US 2008/0104776 A1Published application
Process for Dyeing
OwnerRainer Nusser, Markus Gislerinventors
Life of this patent
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Abstract
The present invention relates to a process for the bichromatic or the trichromatic dyeing or printing of hydroxy-group-containing or nitrogen-containing organic substrates with dye mixtures and also to such dye mixtures and hydroxy-group-containing or nitrogen- containing organic substrates dyed or printed therewith.
Claims10
Trichromatic or bichromatic dyeing process for dyeing or printing hydroxy-group-containing or nitrogen-containing organic substrates characterized by using a dye mixture comprising at least one red-dyeing compound of the formula (I)
- and at least one yellow-dyeing compound or orange-dyeing compound or one blue-dyeing compound.
A dye mixture comprising at least one red-dyeing compound of the formula (I)
- and at least one yellow-dyeing compound or orange-dyeing compound or one blue-dyeing compound wherein the at least one yellow (or orange)-dyeing compound is of the formula (II)
- wherein
- R4 and R5 signify independently from each other H or —SO3H,
- A signifies a group of formula (I) or (Ia)
- wherein
- X is a halogen radical and
- Y signifies —CH═CH2 or —CH2CH2—Z, wherein Z is a radical which can be eliminated by alkali,
- R6 and R7 signify independently from each other H;
- unsubstituted C1-4alkyl or substituted C1-4alkyl,
- B signifies
- wherein R8 signifies C1-4alkyl;
- —NH2 or —NHC1-4alkyl,
- and the asterisk marks the bond to the —N═N—group;
- and/or at the least one yellow-dyeing compounds or orange-dyeing compounds is of formula (IV)
- wherein
- R13 signifies H;
- methyl;
- methoxy, ethoxy;
- —NHCONH2 or —NHCOCH3,
- R14 signifies H;
- methyl;
- methoxy or ethoxy,
- RG signifies
- wherein
- R15 signifies H or chlorine,
- Y signifies —CH═CH2 or —CH2CH2—Z, wherein Z is a radical which can be eliminated by alkali, and may be bonded in a meta- or in para-position with respect to the azo group.
- and the at least one blue-dyeing compound is of formula (VI)
- in which
- R21 is H or —COOH,
- each of R22 and R24 is independently H;
- —COOH;
- —SO3H;
- —NHCOCH3;
- —NHCOCHY2-CH2Y1;
- —NHCOCY2=CH2 or —NHCOCH2Y1,
- R23 —COOH,
- Y1 is chlorine;
- bromine;
- —OSO3H or —SSO3H and
- Y2 is H;
- chlorine or bromine;
- and/or the at least one blue-dyeing compound is of formula (VI)
- in which
- Y signifies —CH═CH2 or —CH2CH2—Z, wherein Z is a radical which can be eliminated by alkali,
- R25 signifies H or —SO3H,
- R26 signifies H or —SO3H;
- and/or the at least one blue-dyeing compound is of formula (VII)
- wherein
- each Y signifies independently from each other —CH═CH2 or —CH2CH2—Z, wherein Z is a radical which can be eliminated by alkali,
- R27 and R28 are independently from each other H;
- unsubstituted C1-4alkyl or substituted C1-4alkyl.
48 more elements
Dependencies are inferred from the claim text.