Concentrated aqueous dye compositions containing a low molecular weight amide

A concentrated, liquid dye composition comprising (i) 1 part by weight of a dye or a mixture thereof, (ii) 0.5 to 5 parts by weight of an amide or a mixture thereof and (iii) 1 to 8 parts by weight of water, wherein said dye is a water-soluble, metal-free, substantive, direct disazo dye of the formula

• F.sub.1 --A--F.sub.2
• or
• K.sub.1 --N.dbd.N--B--N.dbd.N--K.sub.2,
• wherein each of
• F.sub.1 and F.sub.2 is independently the radical of a monoazo dye having at least one water-solubilizing sulfo, carboxy or sulfamoyl group,
• A is --NH--, --NH--CO--NH--, trans--NH--CO--CH.dbd.CH--CO--NH-- or ##STR21## wherein R' is hydrogen, phenyl or 3-sulfophenyl,
• each of
• K.sub.1 and K.sub.2 is independently a coupling component radical having at least one water-solubilizing sulfo, carboxy or sulfamoyl group, and
• B is diphenylene or the radical of a tetrazotizable substituted diphenyldiamine, and
• said amide is guanidine, methylguanidine, .gamma.-butyrolactam, .epsilon.-caprolactam, malonic acid diamide or a compound of the formula ##STR22## wherein R.sub.1 is C.sub.1-3 alkyl,
• each
• R.sub.2 is independently hydrogen, lower alkyl or lower hydroxyalkyl, and
• each
• R.sub.3 is independently hydrogen or lower alkyl.