Process for the level dyeing of wool
AssigneeHoechst Aktiengesellschaft
InventorsHermann Fuchs, Hermann-Heinz Konrad
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Abstract
Process for the level dyeing of wool, having an anti-felting finish consisting of a coating layer of polyimine or polyamine resin, with reactive dyestuffs, which is carried out according to a graduated temperature exhaustion method from an aqueous liquor using one or several reactive dyestuffs of the formulae ##SPC1## In which F stands for a dyestuff radical having at least 2 sulfonic acid groups linked to an aromatic radical of the chromophore, Z stands for a reactive group of the vinylsulfone, vinylsulfonamide or acrylamide type, n is 1 or 2, and R and R.sub.1 each stands for hydrogen atoms or lower alkyl radicals, in the absence of adjuvants and/or without any pretreatment of the material to be dyed.
Claims3
A process for the level dyeing of wool, having an anti-felting finish consisting of a coating layer of polyimine or polyamine resin, with reactive dyestuffs, which process comprises carrying out the dyeing according to a graduated temperature exhaustion method from an aqueous liquor using one or several reactive dyestuffs of the formulae ##SPC13##
- in which F stands for an azo or anthraquinone dyestuff radical having at least 2 sulfonic acid groups linked to an aromatic radical of the chromophore, Z stands for a reactive group of the following constitution:
- ##EQU2## n is 1 or 2, and R and R.sub.1 each stands for hydrogen atoms or lower alkyl radicals, in the absence of adjuvants and/or without any pretreatment of the material to be dyed.
Dependencies are inferred from the claim text.