Mixtures of reactive dyes and their use

1 . A dye mixture comprising:

at least one dye of formula

together with at least one dye from the group of formulae

wherein

R 1 and R 2 are each independently of the other hydrogen or unsubstituted or substituted C 1 -C 8 alkyl,

R 3 and R 4 are each independently of the other hydrogen or unsubstituted or substituted C 1 -C 4 alkyl,

(R 5 ) 0-3 denotes from 0 to 3 identical or differing substituents from the group halogen, C 1 -C 4 alkyl,

C 1 -C 4 alkoxy, carboxy, nitro and sulfo,

A is unsubstituted or substituted phenylene, unsubstituted or substituted naphthylene, or

C 2 -C 8 alkylene which may be interrupted by oxygen,

D 1 and D 2 are each independently of the other the radical of a diazo component of the benzene or naphthalene series,

q and r are each independently of the other the number 0 or 1,

X 1 is halogen or a non-fibre-reactive substituent, and

Y 1 and Y 2 are each independently of the other a radical of formula

—SO 2 —Z  (3a),

—NH—CO—(CH 2 ) m —SO 2 —Z  (3b),

—CONH—(CH 2 ) n —SO 2 —Z  (3c),

—NH—CO—CH(Hal)—CH 2 -Hal  (3d),

—NH—CO—C(Hal)═CH 2   (3e) or

wherein

X 2 is halogen, T 1 independently has the definition of X 2 , is a non-fibre-reactive substituent or is a fiber-reactive radical of formula

—NH—(CH 2 ) 2-3 —SO 2 —Z  (4a),

—NH—(CH 2 ) 2-3 —O—(CH 2 ) 2-3 —SO 2 —Z  (4b),

wherein

Z is vinyl or a radical —CH 2 —CH 2 —U and U is a group that is removable under alkaline conditions,

Q is a group —CH(Hal)—CH 2 -Hal or —C(Hal)═CH 2 ,

m and n are each independently of the other the number 2, 3 or 4,

Hal is halogen,

Y 3 is a radical of the above-mentioned formula (3a), or is a radical of formula

wherein

s is the number 0 or 1, and

X 3 is halogen or C 1 -C 4 akylsulfonyl,

X 4 is halogen or C 1 -C 4 alkyl and

T 2 is hydrogen, cyano or halogen, and

V is C 2 -C 4 alkanoyl, benzoyl which is unsubstituted or is substituted by a radical of formula (3g), or is a radical of formula

wherein

X 5 is halogen, and

T 3 is a non-fibre-reactive substituent.

2 . A dye mixture according to claim 1 , wherein

R 1 and R 2 are hydrogen.

3 . A dye mixture according to claim 1 , wherein

R 3 is hydrogen, methyl or ethyl and R 4 is hydrogen.

4 . A dye mixture according to claim 1 , wherein

X 1 is chlorine.

5 . A dye mixture according to claim 1 , wherein

D 1 and D 2 are each independently of the other a radical of formula

wherein

(R 6 ) 0-3 denotes from 0 to 3 identical or differing substituents from the group halogen, C 1 -C 4 alkyl,

C 1 -C 4 alkoxy, carboxy, nitro and sulfo, and

Y 4 is a radical of formula (3a), (3b), (3c), (3d), (3e) or (3f) according to claim 1 .

6 . A dye mixture according to claim 1 , wherein

D 1 and D 2 are each independently of the other a radical of formula

wherein

(R 6a ) 0-2 denotes from 0 to 2 identical or differing substituents from the group halogen, C 1 -C 4 alkyl,

C 1 -C 4 alkoxy and sulfo,

Y 4a is α,β-dibromopropionylamino or α-bromoacryloylamino,

m is the number 2 or 3,

n is the number 2 or 3, and

Z 1 , Z 2 , Z 3 and Z 4 are each independently of the others vinyl, p-chloroethyl or -sulfatoethyl.

7 . A dye mixture according to claim 1 , wherein

-A—Y, is a radical of formula

wherein

(R 6a ) 0-2 denotes from 0 to 2 identical or differing substituents from the group halogen, C 1 -C 4 alkyl,

C 1 -C 4 alkoxy and sulfo,

m is the number 2 or 3, and

Z 1 , Z 2 and Z 3 are each independently of the others vinyl, β-chloroethyl or β-sulfatoethyl.

8 . A dye mixture according to claim 1 , wherein

R 1 and R 2 are hydrogen,

D 1 is a radical of formula

D 2 is a radical of formula

wherein

R 6a and R 6b are each independently of the other methyl or methoxy, and

Z 1a and Z 1b are each independently of the other vinyl, β-chloroethyl or β-sulfatoethyl.

9 . A dye mixture according to claim 1 , wherein the dye of formula (2a) is a dye of formula

wherein

R 3 is hydrogen, methyl or ethyl, and

Z 1 is vinyl, β-chloroethyl or β-sulfatoethyl.

10 . A method of dyeing or printing of hydroxyl-group-containing or nitrogen-containing fibre materials, which comprises contacting said materials with a tinctorially effective amount of a dye mixture according to claim 1 .

11 . A method according to claim 10 , wherein cellulosic fibre materials are dyed or printed.

12 . An aqueous ink comprising a dye mixture according to claim 1 .

13 . A method of printing of hydroxyl-group-containing or nitrogen-containing fibre materials by the inkjet printing method, which comprises contacting said materials with a tinctorially effective amount of an aqueous ink according to claim 12 .

14 . A method according to claim 10 , wherein cotton-containing fibre materials are dyed or printed.

15 . A method according to claim 13 , wherein hydroxyl-group-containing fibre materials are dyed or printed.