| abstract |
The present invention relates storage stable aqueous dye solutions comprisingn a) 5 to 30% by weight of a dye of the formula nn nin which K is a residue of a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series and M is hydrogen, an alkali metal or alkaline earth metal, ammonium or alkyl ammonium,n b) 0.05 to 5% by weight of one or more compounds of the formula nn nor a residue of the formulan n nin whichn A, X, Y, R, P and Q are defined herein, c) an organic or an inorganic base or mixtures thereof, d) if desired, further additives and e) water, a process for their preparation and the use thereof for the dyeing, in particular of paper. |