Disazo dyes containing a 1-hydroxy-3-sulfo-acylaminophenyl-amino-naphthalene coupling component

A compound of the formula ##STR73## where D is an 8-hydroxy-1-naphthyl radical which is substituted by 1 or 2 sulfo groups,

• A is a radical of the formula ##STR74## or of the formula ##STR75## where R.sub.1 and R.sub.2 are each independently of one another hydrogen, C.sub.1 -C.sub.4 alkyl, unsubstituted or hydroxyl-substituted (in the alkyl moiety) C.sub.1 -C.sub.4 alkoxy or C.sub.2 -C.sub.4 alkanoylamino, unsubstituted or C.sub.1 -C.sub.4 alkyl-, C.sub.1 -C.sub.4 alkoxy- or halogen-substituted benzoylamino or ureido, R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, and R.sub.4 is hydrogen or sulfo,
• and the phenylene radical (B) is unsubstituted or halogen-, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted,
• X is S or O,
• n is 1 or 2, and
• R, for n being 1, is substituted or unsubstituted alkyl, alkoxy, cycloalkyl, alkenyl, aryl, aralkyl or hetaryl or, for n being 2, is substituted or unsubstituted alkylene, cycloalkylene, alkenylene, arylene, aralkylene or heterocyclylene.