Aqueous dispersion of a metallizable dye and sulfonated aromatic condensate
AssigneeCiba-Geigy Corporation
InventorsRoberto Galli, Ernst Tempel
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Abstract
Aqueous dispersion of a sulfonated metallizable dye containing (a) based on the total weight at least 10% of the sulfonated metallizable dye and (b) a sulfonated condensation product obtained by reacting an aromatic compound having at least two replaceable ring-positioned hydrogen atoms in any desired order with a compound of the formula ##STR1## in which X is a direct bond or oxygen, Hal is chlorine or bromine and n is 1 to 4, and sulfonation.
Claims15
An aqueous dispersion of a mordant dye which comprises
- (a) at least 10% of a mordant dye, based on the total weight, and
- (b) a sulfonated condensation product, which is obtained by reaction of a monocyclic or polycyclic aromatic compound having at least two replaceable ring-positioned hydrogen atoms with a compound of the formula ##STR5## in which X is the direct bond or oxygen, Hal is chlorine or bromine and n is 1 to 4, and sulfonation.
A method of dyeing wool which comprises the step of applying to wool an aqueous dispersion of a sulfonated metallizable dye which comprises
- (a) at least 10% of a sulfonated metallizable dye, based on the total weight, and
- (b) a sulfonated condensation product, which is obtained by reaction of a monocyclic or polycyclic aromatic compound having at least two replaceable ring-positioned hydrogen atoms with a compound of the formula ##STR6## in which X is the direct bond or oxygen, Hal is chloringe or bromine and n is 1 to 4, and sulfonation.
Dependencies are inferred from the claim text.