Acid dye mixture
The present invention refers to a red-dyeing acid dye mixture comprising a dye of the formula (I) and at least one dye of the formula (II) a process for its manufacturing and a process for dyeing and printing of natural or synthetic polyamide fiber material in which it used.
1. A dye mixture comprising a dye of the formula (I)
wherein M is hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal,
and at least one dye of the formula (IIa) or (IIb)
M is defined above,
and at least one dye of the formula (IIIc), (IIId), (IIIe) or (IIIg)
wherein
M is defined above.
2. The dye mixture according to claim 1 , wherein M is hydrogen, sodium or potassium.
3. A process for the manufacturing of the dye mixture according to claim 1 , which comprises mechanical mixing of the dye of the formula (I) and the dye or the dyes of the formula (IIa) or (IIb) and at a dye of the formula (IIIc), (IIId), (IIIe) or (IIIg).
4. A process for dyeing and printing of natural or synthetic polyamide fiber material which comprises applying said dye mixture according to claim 1 to said material.
5. A process for trichromatic dyeing and printing of natural or synthetic polyamide fiber material which comprises applying to said material said dye mixture according to claim 1 together with at least one blue-dyeing dye or dye mixture and at least one yellow- or orange-dyeing dye or dye mixture.
6. The process according to claim 5 , wherein a dye selected from the group consisting of the dyes of formulae (IVa) to (IVh)
wherein M hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal,
or mixtures of two or more dyes of the formulae (IVa) to (IVh) are used as yellow- or orange dyeing dye.
7. The process according to claim 6 , wherein a mixture of a dye of the formula (IVa) and a dye of the formula (IVi)
wherein M is hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal,
is used as yellow or orange dyeing dye.
8. The dye mixture as claimed in claim 1 , which further comprises at least one dye selected from the group consisting of the dyes of formulae (IVa) to (IVh)
wherein M hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal.
9. The dye mixture as claimed in claim 8 , wherein at least one dye of the formula (IVb), (IVd), (IVe) or (IVf) is used and at least one of the dyes of the formula (IIId), (IIIe) or (IIIg) is used.
10. The dye mixture according to claim 1 , consisting of
the dye of the formula (I),
the dye of the formulas (IIa) or (IIb) or the dye of formula (IIa) and (IIb) and
at least one dye of the formula (IIIc), (IIId), (IIIe) or (IIIg) and
optionally comprises at least one dye selected from the group consisting of the dyes of formulae (IVa) to (IVh)
wherein M hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal.
11. A dye mixture comprising a dye of the formula (I)
wherein M is hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal,
and at least one dye of the formula (IIa) or (IIb)
M is defined above,
and at least one dye of the formula (IVb), (IVd), (IVe) or (IVf)
wherein M is defined above.
12. The dye mixture as claimed in 11 , which further comprises at least one dye selected from the group consisting of the dyes of formulae (IIIb) to (IIIh)
wherein M is hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal.
13. The dye mixture as claimed in 12 , wherein a dye of the formula (IIIc), (IIId), (IIIe) or (IIIg).
14. The dye mixture according to claim 11 , wherein M is hydrogen, sodium or potassium.
15. A process for the manufacturing of the dye mixture according to claim 11 , which comprises mechanical mixing of the dye of the formula (I) and the dye or the dyes of the formula (IIa) or (IIb) and at least one dye of the formula (IVb), (IVd), (IVe) or (IVf).
16. A process for dyeing and printing of natural or synthetic polyamide fiber material which comprises applying said dye mixture according to claim 11 to said material.
17. A dye mixture consisting of a dye of the formula (I)
wherein M is hydrogen, an alkali metal, an ammonium ion or the equivalent of an alkaline earth metal,
and at least one dye of the formula (IIa) or (IIb)
M is defined above,
and only one dye selected from the group consisting of the dyes of formulae (IIIb) to (IIIh)
and optionally at least one dye selected from the group consisting of the dyes of formulae (IVa) to (IVh)
wherein M is defined above.
18. The dye mixture as claimed in claim 17 , wherein the dye of the formula dye of the formula (IIIc), (IIId), (IIIe) or (IIIg) is used.
19. The dye mixture as claimed in claim 17 , wherein the dye of the formula dye of the formula (IVb), (IVd), (IVe) or (IVf) is used.
20. A process for dyeing and printing of natural or synthetic polyamide fiber material which comprises applying said dye mixture according to claim 17 to said material.