Dye compositions containing quinolinium salts

1. An aqueous or aqueous alcoholic dye composition (A) for dyeing fibers made by mixing a first component (A1) and a second component (A2) to form a dye mixture and adding an alkalizing agent or an acidifying agent to the dye mixture, as needed for adjustment of pH to a value between 3 and 11,

wherein said second component (A2) comprises at least one compound with a nucleophilic reaction center and said first component (A1) comprises at least one 1-alkyl quinolinium derivative of formula (Ia) or (Ib):

wherein R1 represents a straight chained or branched C 1 - to C 8 -alkyl group, a C 1 - to C 8 -monohydroxyalkyl group, a C 2 - to C 8 -polyhydroxyalkyl group or a C 1 - to C 8 -alkoxy-(C 1 - to C 8 -)-alkyl group;

wherein R2, R3, R4, R5, R6 and R7 are the same or different, and, independently of each other, represent hydrogen, a straight changed or branched C 1 - to C 4 -alkyl group, a straight changed or branched C 1 - to C 4 -hydroxyalkyl group, a hydroxy group, a methoxy group, an ethoxy group, a benzyl group, a halogen, a nitro group, a nitroso group, a cyano group, a trifluoromethyl group, a —COOH group, a —CO 2 R a group, a —CONHR a group, a —CON(R a ) 2 group, a —O(CO)R a , a —O—SO 2 CF 3 group, a —OCH 2 aryl group, a —SO 2 NH 2 group, a —SO 2 CHF 2 group, a —SO 2 CF 3 group, a —SO 2 NH 2 group, a —SO 2 NHR a group, a —SO 2 N(R a ) 2 group, a —SO 2 R a group, a —NH 2 group, a —NHR a group, a —N(R a ) 2 group, a —NHCOR a group, a —NHCOOR a group, a —CH 2 NH 2 group, a —CH 2 NHR a group, a —CH 2 N(R a ) 2 group or a —PO(OR a ) 2 group;

wherein R a represents a hydrogen atom, an optionally substituted aromatic carboxylic or heterocyclic group or a C 1 - to C 6 -alkyl group;

wherein Y represents an iodine atom, a bromine atom, a chlorine atom or an ethoxy group, a phenoxy group, a CF 3 —SO 2 —O group, an aryl-SO 2 —O group or a (—SO 3 ) − group;

wherein A − represents an anion of an organic or inorganic acid; and

wherein said at least one compound with said nucleophilic reaction center is selected from the group consisting of aliphatic compounds with at least one amino group, aromatic compounds with at least one amino group, aliphatic compounds with at least one hydrazine group, aromatic compounds with a hydrazine group, nitrogen-containing heterocyclic compounds, amino acids, oligopeptides with 2 to 9 amino acid groups, aromatic hydroxy compounds and CH-active compounds.

2. The dye composition as defined in claim 1 , wherein said at least one 1-alkyl-quinolinium derivative of formula (Ia) or (Ib) is selected from the group consisting of 4-chloro-1-ethyl-quinolinium salt, 4,7-dichloro-1-ethyl-quinolinium salt, 4-chloro-1-ethyl-7-trifluoromethyl-quinolinium salt, 4-chloro-1-ethyl-6-nitroquinolinium salt, 4-chloro-1-methyl-quinolinium salt, 4-methoxy-1-methyl-quinolinium salt, 4-ethoxy-1-methyl-quinolinium salt, 4-ethoxy-1-ethyl-quinolinium salt, 4-iodo-1-methyl-quinolinium salt, 4-chloro-1-methyl-2-phenyl-quinolinium salt, 4-chloro-1-methyl-3-[(methylphenylamino)sulfonyl]quinolinium salt, 4-chloro-2-[[[4-(di-methylamino)phenyl]-imino[methyl]-6-methoxy-1-methyl-quinolinium salt, 4-chloro-1-ethyl-3-[(phenylamino)sulfonyl]-quinolinium salt, 4-chloro-6-dimethyl-carbamoyl-1-methyl-quinolinium salt, 4-chloro-1-ethyl-6-sulfamoyl-quinolinium salt, 4-chloro-1-ethyl-7-nitroquinolinium salt, 4-chloro-1-ethyl-7-methoxy-quinolinium salt, 2-chloro-1-methyl-quinolinium salt, 2,6-dichloro-1-methyl-quinolinium salt, 2-chloro-1-methyl-4-trifluoromethane-sulfonyloxy-quinolinium salt and 1-ethyl-4-(toluene-4-sulfonyloxy)-quinolinium salt.

3. The dye composition as defined in claim 1 , wherein said at least one 1-alkyl-quinolinium derivative of formula (Ia) or (Ib) is selected from the group consisting of 4-ethoxy-1-ethyl-quinolinium tetrafluoroborate, 4-chloro-1-ethyl-quinolinium tetrafluoroborate, 4,7-dichloro-1-ethyl-quinolinium tetrafluoroborate, 4-chloro-1-ethyl-7-trifluoro-methyl-quinolinium tetrafluoroborate, 4-chloro-1-ethyl-6-nitroquinolinium tetrafluoroborate, 4-chloro-1-methylquinolinium chloride, 4-iodo-1-methyl-quinolinium iodide, 4-chloro-1-methyl-2-phenylquinolinium tetrafluoroborate, 4-chloro-1-methyl-3-[(methylphenylamino)-sulfonyl]quinolinium methylsulfate, 4-chloro-2-[[[4-(dimethylamino)phenyl]imino]methyl]-6-methoxy-1-methyl-quinolinium chloride, 4-chloro-1-ethyl-3-[(phenylamino)sulfonyl]quinolinium tetrafluoroborate, 4-chloro-6-dimethylcarbamoyl-1-methyl-quinolinium tetrafluoroborate, 4-chloro-1-ethyl-6-sulfamoyl-quinolinium tetrafluoroborate, 4-chloro-1-ethyl-6-formyl quinolinium tetrafluoroborate, 4-chloro-1-ethyl-7-nitro-quinolinium tetrafluoroborate, 4-chloro-1-ethyl-7-methoxy-quinolinium-tetrafluoroborate, 2-chloro-1-methyl-quinolinium tetrafluoroborate, 2,6-dichloro-1-methylquinolinium tetrafluoroborate, 1-ethyl-4-(toluene-4-sulfonyloxy)-quinolinium chloride, 1-ethyl-4-(toluene-4-sulfonyloxy)-quinolinium tetrafluoroborate, 1-ethyl-4-quinolinium sulfonate and 2-chloro-1-methyl-4-trifluoromethane sulfonyloxy quinolinium tetrafluoroborate.

4. The dye composition as defined in claim 1 , wherein said value of said pH from is 5 to 11.

5. The dye composition as defined in claim 1 , wherein said at least one 1-alkyl-quinolinium derivative of formula (Ia) or (Ib) is present in a total amount of from 0.02 to 20 percent by weight in said first component (A1) and said at least one compound with said nucleophilic reaction center is present in said second component (A2) in a total amount of from 0.02 to 20 percent by weight.

6. The dye composition as defined in claim 1 , wherein said at least one 1-alkyl-quinolinium derivative of formula (Ia) or (Ib) and said at least one compound with said nucleophilic reaction center are each present in a total amount of 0.01 to 10 percent by weight.

7. The dye composition as defined in claim 1 , in the form of a solution, an emulsion, foam, a cream or a gel.

8. The dye composition as defined in claim 1 , wherein said first component is present in the form of a solution, an emulsion, foam, a cream or a gel.

9. The dye composition as defined in claim 1 , wherein said second component is present in the form of a solution, an emulsion, foam, a cream or a gel.

10. The dye composition as defined in claim 1 , wherein at least one of said first component and said second component includes at least one direct dye compound and said at least one direct dye compound is selected from the group consisting of acidic dye compounds, basic dye compounds, nitro dye compounds, azo dye compounds, quinone dye compounds and triphenyl-methane dye compounds.

11. The dye composition as defined in claim 1 , wherein at least one of said first component (A1) and said second component (A2) consist or consists of a plurality of separate components.

12. A multi-component kit, comprising a first component (A1) containing at least one 1-alkylquinolinium compound of formula (Ia) or (Ib) and a second component (A2) containing at least one compound with a nucleophilic reaction center;

wherein R1 represents a straight chained or branched C 1 - to C 8 -alkyl group, a C 1 - to C 8 -monohydroxyalkyl group, a C 2 - to C 8 -polyhydroxyalkyl group or a C 1 - to C 8 -alkoxy-(C 1 - to C 8 -)-alkyl group;

wherein R2, R3, R4, R5, R6 and R7 are the same or different, and, independently of each other, represent hydrogen, a straight changed or branched C 1 - to C 4 -alkyl group, a straight changed or branched C 1 - to C 4 -hydroxyalkyl group, a hydroxy group, a methoxy group, an ethoxy group, a benzyl group, a halogen, a nitro group, a nitroso group, a cyano group, a trifluoromethyl group, a —COOH group, a —CO 2 R a group, a —CONHR a group, a —CON(R a ) 2 group, a —O(CO)R a , a —O—SO 2 CF 3 group, a —OCH 2 aryl group, a —SO 2 NH 2 group, a —SO 2 CHF 2 group, a —SO 2 CF 3 group, a —SO 2 NH 2 group, a —SO 2 NHR a group, a —SO 2 N(R a ) 2 group, a —SO 2 R a group, a —NH 2 group, a —NHR a group, a —N(R a ) 2 group, a —NHCOR a group, a —NHCOOR a group, a —CH 2 NH 2 group, a —CH 2 NHR a group, a —CH 2 N(R a ) 2 group or a —PO(OR a ) 2 group;

wherein R a represents a hydrogen atom, an optionally substituted aromatic carboxylic or heterocyclic group or a C 1 - to C 6 -alkyl group;

wherein Y represents an iodine atom, a bromine atom, a chlorine atom or an ethoxy group, a phenoxy group, a CF 3 —SO 2 —O group, an aryl-SO 2 —O group or a (—SO 3 ) − group;

wherein A − represents an anion of an organic or inorganic acid; and

wherein said at least one compound with said nucleophilic reaction center is selected from the group consisting of aliphatic compounds with at least one amino group, aromatic compounds with at least one amino group, aliphatic compounds with at least one hydrazine group, aromatic compounds with a hydrazine group, nitrogen-containing heterocyclic compounds, amino acids, oligopeptides with 2 to 9 amino acid groups, aromatic hydroxy compounds and CH-active compounds.

13. The multi-component kit as defined in claim 12 , further comprising a third component containing an alkalizing agent or an acidifying agent in an amount necessary to adjust a pH of a dye mixture formed by mixing the first component (A1) with the second component (A2) to a value between 3 and 11.

14. A method of dyeing fibers, said method comprising the steps of:

a) immediately prior to application to the fibers, mixing a first component (A1) containing at least one dye compound with a second component (A2) containing at least one compound with a nucleophilic reaction center to form an aqueous or aqueous alcoholic ready-to-apply dye mixture (A) and adding an alkalizing agent or an acidifying agent to the aqueous or aqueous alcoholic dye mixture (A), as needed, for adjustment of pH of the dye mixture (A) to a value between 3 and 11;

b) applying aqueous or aqueous alcoholic ready-to-apply dye mixture (A) having said value of said pH to the fibers in an amount sufficient for the dyeing of the fibers;

c) allowing the ready-to-apply dye mixture to act on the fibers for a time interval of from 5 to 60 minutes at a temperature of from 20 to 50° C.; and

d) subsequently washing the fibers with a shampoo, as needed, rinsing with water and then drying the fibers;

wherein said at least one dye compound consists of at least one 1-alkylquinolinium compound of formula (Ia) or (Ib):

wherein R1 represents a straight chained or branched C 1 - to C 8 -alkyl group, a C 1 - to C 8 -monohydroxyalkyl group, a C 2 - to C 8 -polyhydroxyalkyl group or a C 1 - to C 8 -alkoxy-(C 1 - to C 8 -)-alkyl group;

wherein R2, R3, R4, R5, R6 and R7 are the same or different, and, independently of each other, represent hydrogen, a straight changed or branched C 1 - to C 4 -alkyl group, a straight changed or branched C 1 - to C 4 -hydroxyalkyl group, a hydroxy group, a methoxy group, an ethoxy group, a benzyl group, a halogen, a nitro group, a nitroso group, a cyano group, a trifluoromethyl group, a —COOH group, a —CO 2 R a group, a —CONHR a group, a —CON(R a ) 2 group, a —O(CO)R a , a —O—SO 2 CF 3 group, a —OCH 2 aryl group, a —SO 2 NH 2 group, a —SO 2 CHF 2 group, a —SO 2 CF 3 group, a —SO 2 NH 2 group, a —SO 2 NHR a group, a —SO 2 N(R a ) 2 group, a —SO 2 R a group, a —NH 2 group, a —NHR a group, a —N(R a ) 2 group, a —NHCOR a group, a —NHCOOR a group, a —CH 2 NH 2 group, a —CH 2 NHR a group, a —CH 2 N(R a ) 2 group or a —PO(OR a ) 2 group;

wherein R a represents a hydrogen atom, an optionally substituted aromatic carboxylic or heterocyclic group or a C 1 - to C 6 -alkyl group;

wherein Y represents an iodine atom, a bromine atom, a chlorine atom or an ethoxy group, a phenoxy group, a CF 3 —SO 2 —O group, an aryl-SO 2 —O group or a (—SO 3 ) − group;

wherein A − represents an anion of an organic or inorganic acid; and

wherein said at least one compound with said nucleophilic reaction center is selected from the group consisting of aliphatic compounds with at least one amino group, aromatic compounds with at least one amino group, aliphatic compounds with at least one hydrazine group, aromatic compounds with a hydrazine group, nitrogen-containing heterocyclic compounds, amino acids, oligopeptides with 2 to 9 amino acid groups, aromatic hydroxy compounds and CH-active compounds.

15. The method as defined in claim 14 , wherein said time interval is from 15 to 30 minutes and said temperature is from 30 to 40° C.