Method of reducing barre in synthetic polymide textiles dyed with acid dyes

Claim 1

In a process of dyeing a nylon textile with an acid dye, the improvement which comprises: dyeing the nylon textile in the presence of a barre-reducing quantity of a combination of anionic surfactants consisting essentially of A. a dye-leveling alkyl sulfonate, and B. a dye-leveling alkyl aryl sulfonate, to obtain a dyed nylon textile having less barre than if similarly dyed in the presence of an equivalent amount of of either (A) or (B) alone; the quantity of the combination of the anionic surfactants being about 0.25 to 4.0 parts by weight per 100 parts by weight of the nylon textile; the weight ratio of the alkyl sulfonate to the alkyl aryl sulfonate being within the range of 1:9 to 9:1; the alkyl sulfonate being a sodium, potassium, ammonium or water-soluble amine salt of an alkyl sulfonic acid having 8 to 20 carbon atoms; and the alkyl aryl sulfonate being a sodium, potassium, ammonium, or water-soluble amine salt of an alkyl aryl sulfonic acid having the general formula: ##SPC2## where, R 1 is hydrogen or a methyl group, R 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms, and R 3 is an alkyl group having 8 to 20 carbon atoms.