| 摘要 |
Anionic dyestuffs which contain, as the cation an ammonium ion of the formula <IMAGE> (I) wherein R1 and R2 independently of one another denote hydrogen, C1-C6-alkyl which is optionally substituted by hydroxyl, cyclopentyl, cyclohexyl or phenyl, naphthyl or benzyl which are optionally substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, or one of the radicals -(CH2-X-O)n-H, [-alkylene-N (R3-]P-R3 or -arylene-N (R3)-(CH2-X-O)n-H or denotes, together with the nitrogen atom, a 5-membered to 7-membered heterocyclic radical, R3 denotes hydrogen, C1-C6-alkyl which is optionally substituted by OH, cyclopentyl, cyclohexyl or phenyl, naphthyl or benzyl which are optionally substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, or the radical -(CH2-X-O)n-H, X represents <IMAGE> n represents the numbers 1-10, preferably 1-5, and P REPRESENTS THE NUMBERS 1-4 ARE READILY SOLUBLE IN WATER.
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