| 摘要 |
<p>The present invention relates storage stable aqueous dye solutions comprising a) 5 to 30% by weight of a dye of the Formula (1) in 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, b) 0.05 to 5% by weight of one or more compounds of the Formula (2) in which A represents -NR1R2, -NHCOR1,-CN, halogen, -NO2-OH, -OR1, hydrogen, C1,-C4alkyl, C2- C4alkenyl, C2-C4alkynil, -CO2M, - CO2R1 or -CONR1 R2, wherein R1 and R2 each, independently of one another, represent hydrogen or C1-C4alkyl and M is as previously defined, or a residue of the Formula (3); X represents O, S or NR1, R1, being as previously defined; Y represents N or CR1, R1 being as previously defined and P, Q and R each, independently of one another, represent hydrogen, C1-C4alkyl,- SO3M, -PO3M, -CO2M, -OH, -NO2 or COR1, M and R'1 being as previously defined, 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.</p> |
