Fluoro triazine containing water insoluble azo dyestuff

A monoazo dyestuff of the formula

• D -- N = N -- B
• wherein
• D is thiazole, benzothiazole, pyridine, triazole, pyrazole, imidazole, thiadiazole, isothiazole or benzisothiazole, which is unsubstituted or substituted by a member selected from the group consisting of nitro cyano, methyl, methylsulphonyl, bromine, acetylamino, phenyl, chlorine, methoxy, ethoxy, thiocyano, and carbethoxy, and
• B is a member selected from the group consisting of ##SPC49## and ##SPC50##
• wherein
• c and d each are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, phenylthio or phenoxy, and
• c in addition is chlorine, bromine, trifluoromethyl, -CONH.sub.2, C.sub.1 -C.sub.4 -alkylcarbonylamino, benzoylamino, pyridine carbonylamino, thiophencarbonylamino, chloroacetylamino, methylsulfonylamino, ethylsulfonylamino, p-toluenesulfonylamino, C.sub.1 -C.sub.4 -alkoxy-carbonylamino or phenoxycarbonylamino,
• R.sub.1 is unsubstituted C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl substituted by halogen, hydroxy, phenyl, cyanoethoxy, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.3 -alkoxy-carbonyl, formylamino, C.sub.1 -C.sub.4 -alkylcarbonyloxy, C.sub.1 -C.sub.4 -alkylcarbamoyloxy, phenylcarbamoyloxy, C.sub.1 -C.sub.3 -alkyloxycarbonyloxy or benzoyloxy;
• R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl and
• X is chlorine or fluorine.