Disperse dyes mixtures

1. A disperse dye mixture comprising

(a) two or more disperse dyestuffs of the formula (I)

wherein

D is a group of the formula (IIa)

wherein

T 1 , T 2 and T 3 are, independently, hydrogen, halogen or nitro;

T 4 is hydrogen, halogen, cyano or nitro;

wherein at least one of T 1 , T 2 , T 3 and T 4 is not hydrogen;

or a group of the formula (IIb)

wherein

T 5 is hydrogen or halogen; and

T 6 is hydrogen —SO 2 CH 3 , —SCN or nitro;

wherein at least one of T 5 and T 6 is not hydrogen;

or a group of the formula (IIc)

or a group of the formula (IId)

wherein

T 7 is nitro, —CHO or a group of the formula

wherein T 10 is hydrogen, halogen, nitro or cyano;

T 8 is hydrogen or halogen; and

T 9 is nitro, cyano, —COCH 3 or —COOT 11 , wherein T 11 is (C 1 -C 4 )-alkyl;

or a group of the formula (IIe)

R 1 is hydrogen, (C 1 -C 4 )-alkyl or —NHCOR 6 , where R 6 is (C 1 -C 4 )-alkyl or phenyl;

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl;

R 3 is hydrogen or methyl;

R 4 is hydrogen or methyl;

R 5 is hydrogen, methyl or phenyl;

R 7 is hydrogen, chloro, methoxy or ethoxy;

n is 0, 1 or 2 and;

s is 0 or 1;

or

(b) one or more disperse dyestuffs of the formula (I) as defined above and one or more other disperse dyestuffs.

2. The disperse dye mixture according to claim 1 , wherein the dyestuff of the formula (I) is of the formula (Ia)

wherein

D is a group of the formulae (IIa), (IIb), (IIc), (IId) or (IIe);

R 1 is (C 1 -C 4 )-alkyl;

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl; and

n is 0, 1 or 2;

or is of the formula (Ib)

wherein

T 3 is bromo or chloro; and

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl;

or is of the formula (Ic)

wherein

D is a group of the formulae (IIa), (IIb), (IIc), (IId) or (IIe);

R 1 is hydrogen, (C 1 -C 4 )-alkyl or —NHCOR 6 , where R 6 is (C 1 -C 4 )-alkyl or phenyl;

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl; and

R 3 is hydrogen and R 4 is methyl or R 3 is methyl and R 4 is hydrogen;

or is of the formula (Id)

wherein

D is a group of the formulae (IIa), (IIb), (IIe), (IId) or (IIe);

R 1 is hydrogen, (C 1 -C 4 )-alkyl or —NHCOR 6 , where R 6 is (C 1 -C 4 )-alkyl or phenyl;

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl; and R 5 is methyl or phenyl;

or is of the formula (Ie)

wherein

D is a group of the formulae (IIa), (IIb), (IIc), (IId) or (IIe);

R 2 is unsubstituted (C 1 -C 6 )-alkyl, substituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl;

R 6 is (C 1 -C 4 )-alkyl or phenyl;

R 7 is chloro, methoxy or ethoxy; and

n is 0, 1 or 2;

or is of the formula (If)

wherein

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl;

R 8 is nitro; and

n is 0, 1 or 2;

or is of the formula (Ig)

wherein

D is a group of the formulae (IIa), (IIb), (IIc), (IId) or (IIe);

R 1 is hydrogen, (C 1 -C 4 )-alkyl or —NHCOR 6 , where R 6 is (C 1 -C 4 )-alkyl or phenyl;

R 2 is unsubstituted (C 1 -C 6 )-alkyl, benzyl or phenylethyl; and R 3 is hydrogen or methyl.

3. The disperse dye mixture according to claim 2 , wherein the dyestuff of the formula (I) is of the formula (Ia)

wherein

R 1 is methyl;

R 2 is ethyl; and

n is 0;

or is of the formula (Ib)

wherein

T 3 is bromo or chloro; and

R 2 is ethyl, benzyl or phenethyl.

4. The disperse dye mixture according to claim 1 , which comprises a dyestuff of the formula (III)

wherein

each of X 1 and X 2 , independently are hydrogen or cyano;

R 9 is (C 2 -C 10 )-alkyl or —(CH 2 ) o COOR 14 ;

R 10 is hydrogen, methyl, cyanomethyl, halogenmethyl, ethyl, cyanoethyl, halogenethyl, halogen, —NH—CO—R 15 or —NH—SO 2 —R 15 ;

R 11 is unsubstituted (C 1 -C 8 )-alkyl or (C 1 -C 8 )-alkyl substituted by hydroxy, (C 1 -C 4 )-alkoxy, cyano, halogen, —OCOR 15 , COOR 15 , vinyl or phenyl; R 12 is hydrogen, unsubstituted (C 1 -C 8 )-alkyl or (C 1 -C 8 )-alkyl substituted by hydroxy, (C 1 -C 4 )-alkoxy, cyano, halogen, —OCOR 7 , COOR 7 , vinyl or phenyl;

R 13 is hydrogen, halogen, (C 1 -C 4 )-alkyl, unsubstituted (C 1 -C 8 )-alkoxy or (C 1 -C 8 )-alkoxy substituted by halogen, cyano or phenyl;

R 14 is (C 1 -C 4 )-alkyl;

R 15 is unsubstituted (C 1 -C 8 )-alkyl or (C 1 -C 8 )-alkyl substituted by halogen or cyano; and

o is 1, 2, 3, 4 or 5.

5. The disperse dye mixture according to claim 1 , which comprises a dyestuff of formula (IV)

wherein

P and Q are both O or one is O and one is NH;

p is 1, 2, 3 or 4; and

R 16 is hydrogen, (C 1 -C 4 )-alkyl or (C 1 -C 4 )-alkoxyalkyl.

6. The disperse dye mixture according to claim 1 , which comprises a dyestuff of formula (V)

wherein

R 17 is hydrogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkyl or aryloxy-(C 1 -C 4 )-alkyl;

X is hydrogen, halogen, (C 1 -C 4 )-alkyl, nitro or cyano;

Y is hydrogen, halogen, (C 1 -C 4 )-alkyl, nitro, (C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkoxycarbonyl, aryl-(C 1 -C 4 )-alkoxycarbonyl, mono- or di-(C 1 -C 4 )-alkylamino-carbonyl, (C 1 -C 4 )-alkyl-(C 1 -C 4 )-alkoxycarbonyl or R 18 SO 2 ;

Z is hydrogen, hydroxyl, halogen, aryloxy-(C 1 -C 4 )-alkoxycarbonyl, aryl-(C 1 -C 4 )-alkoxycarbonyl, —OSO 2 aryl or R 18 SO 2 ; and

R 18 is aryloxy, or mono- or di-(C 1 -C 4 )-alkylamino.

7. The disperse dye mixture according to claim 1 , which comprises a dyestuff of formula (VI)

wherein

R 19 and R 20 independently are hydrogen, (C 1 -C 4 )-alkoxy, (C 2 -C 4 )-alkenyloxy or —O(CH 2 ) q R 22

wherein

q is an integer from 1 to 6; and

R 22 is —OR 23 or —COR 24 ;

where

R 23 is hydrogen, (C 1 -C 4 )-alkyl, (C 2 -C 4 )-alkenyl, substituted or unsubstituted phenyl, (C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkyl, phenoxy-(C 1 -C 4 )-alkyl, carbonyl-(C 1 -C 4 )-alkyl, carbonyl-(C 2 -C 4 )-alkenyl, carbonylphenyl, carbonyl-(C 1 -C 4 )-alkoxy-(C 2 -C 4 )-alkyl or carbonylphenoxy-(C 2 -C 4 )-alkyl; and

R 24 is (C 1 -C 4 )-alkoxy, (C 2 -C 4 )-alkenyloxy, substituted or unsubstituted phenyloxy, phenyl-(C 1 -C 2 )-alkoxy, phenoxy-(C 1 -C 4 )-alkoxy, (C 2 -C 4 )-alkenyloxy-(C 1 -C 4 )-alkoxy or (C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkoxy.

8. The disperse dye mixture according to claim 1 , which comprises the dyestuff of formula (VII)

9. The disperse dye mixture according to claim 1 , which comprises a dyestuff of formula (VIII)

wherein

each of R 24 and R 25 , independently is (C 1 -C 4 )-alkyl, (C 2 -C 4 )-alkenyl, substituted or unsubstituted phenyl, phenyl-(C 1 -C 4 )-alkyl or (C 1 -C 4 )-alkoxy-(C 2 -C 4 )-alkyl;

R 26 is hydrogen halogen, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy or —NHCOR 27 ;

each of R 28 , R 29 and R 30 , independently is hydrogen, chlorine, bromine, cyano or nitro;

R 27 is (C 1 -C 4 )-alkyl or (C 1 -C 4 )-alkoxy; and

r is 1, 2, 3 or 4.

10. A process for the preparation of the disperse dye mixture as claimed claim 1 , which comprises mixing two or more dyestuffs of the formula (I) or by mixing one or more dyestuffs of the formula (I) with one or more other dyestuffs.

11. A process of coloring a synthetic material which comprises contacting the synthetic material with the a disperse dye mixture as claimed in claim 1 .

12. Ink for injet printing which contains the disperse dye mixture as claimed in claim 1 .

13. The disperse dye mixture according to claim 1 , wherein R 1 is hydrogen or (C 1 -C 4 )-alkyl.

14. The disperse dye mixture according to claim 1 , consisting essentially of

(a) two or more disperse dyestuffs of the formula (I) or

(b) one or more disperse dyestuffs of the formula (I) as defined above and one or more other disperse dyestuffs.

15. The disperse dye mixture according to claim 13 , consisting essentially of

(a) two or more disperse dyestuffs of the formula (I) or

(b) one or more disperse dyestuffs of the formula (I) as defined above and one or more other disperse dyestuffs.

16. The disperse dye mixture according to claim 1 , consisting essentially of two or more disperse dyestuffs of the formula (I).

17. The disperse dye mixture according to claim 13 , comprising two or more disperse dyestuffs of the formula (I).