Patent ID: 6977001

Claim:
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.