Aqueous dye solutions and their use

Details Aqueous dye solutions and their use Aqueous dye solutions and their use

C - Chemistry, Metallurgy

09

B

C09B 1/40 (2006.01) C09B 1/34 (2006.01) C09B 1/473 (2006.01) C09B 62/525 (2006.01) C09B 62/80 (2006.01) C09B 67/22 (2006.01) C09B 67/26 (2006.01) C09B 67/44 (2006.01) C09B 69/04 (2006.01) D06P 3/02 (2006.01) D06P 3/06 (2006.01) D06P 3/24 (2006.01) D06P 3/58 (2006.01)

Patent

CA 2255485

Concentrated aqueous dye solutions, which comprise 5 to 50 % by weight of at least one dye of formula (1) Image wherein X and Y are each independently of the other hydrogen or C1-C4alkyl or C1- C4alkoxy, and Z is C2-C6alkanoylamino or C2-C4hydroxyalkylsulfamoyl, M+ is the ammonium cation ~ Image ~of an amine of formula Image wherein R1 and R2 are each independently of the other hydrogen, C1-C6alkyl, or hydroxy- or amino- substituted C2-C6alkyl which may be interrupted by an oxygen atom, and R3 is hydroxy- or amino-substituted C2-C6alkyl which may be interrupted by an oxygen atom, with the proviso that R1, R2 and R3 are not a radical of formula -CH2-CH(OH)-CH3 if X and Y are methyl and Z is 2-hydroxyethylsulfamoyl or if X and Y are hydrogen and Z is propionylamino, have good storage stability and give dyeing having good fastness properties on hydroxyl group-contain- ing or nitrogen-containing fibre materials.

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