| 摘要 |
P-aminoazo dyes of the formula: <IMAGE> (I) in which D is a benzoisothiazolyl group; B1 is hydrogen, methyl, ethyl, methoxy, ethoxy; B2 is hydrogen, methyl, ethyl, methoxy, ethoxy, chloro, bromo, C1 to C4 alkanoylamino or C1 to C4 alkoxycarbonylamino; R1 is the radical <IMAGE> C1 to C4 alkyl optionally bearing hydroxy, C1 to C4 alkoxy, C1 to C4 alkanoyloxy, C1 to C4 alkoxycarbonyl, C1 to C4 alkanoylamino or chloro as a substituent, phenylethyl, phenoxyethyl or cyclohexyl and the group -A1-CO-A2 represents acyl, acyloxy or acylamino derived from a carbonic acid derivative in which A1 is a single bond, -O-, -NH- or <IMAGE>
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