Liquid preparation of cationic dye mixture containing aliphatic carboxylic acid for black dyeing

A black liquid dye preparation consisting essentially of a cationic yellow component of the formula

• a cationic red component of the formula ##STR20## and a cationic blue component of the formula ##STR21## and an aliphatic mono- or di-carboxylic acid, wherein R.sub.1 and R.sub.2 independently of one another are each hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,
• R.sub.3 is C.sub.1 -C.sub.4 -alkyl,
• R.sub.4 and R.sub.5 independently of one another are each unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl,
• R.sub.6 is C.sub.1 -C.sub.4 -alkoxy or acylamino,
• R.sub.7 is C.sub.1 -C.sub.4 -alkyl,
• R.sub.8 is hydrogen or methyl,
• R.sub.9 is hydrogen, unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, or is phenyl Or cyclohexyl,
• Hal is chlorine or bromine,
• R.sub.10 is C.sub.1 -C.sub.4 -alkyl,
• R.sub.11 is a radical of any one of the formulae ##STR22## R.sub.12 is C.sub.1 -C.sub.4 -alkyl, R.sub.13 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,
• R.sub.14 is hydrogen, C.sub.1 -C.sub.4 -alkyl or Phenyl,
• R.sub.15 is unsubstituted or substituted C.sub.1 -C.sub.4 -alkyl,
• R.sub.16 is hydrogen or halogen,
• R.sub.17, R.sub.18, R.sub.19 and R.sub.20 independently of one another are each unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, or R.sub.17 forms with R.sub.18, with inclusion of the N atom and optically further hetero atoms, a heterocyclic 5- or 6-membered ring,
• R.sub.21 is unsubstituted or substituted C.sub.1 -C.sub.3 -alkyl,
• X is an anionic radical,
• and optionally water, organic solvents and conventional additives.