| 摘要 |
A brown reactive dye represented by a free acid of the formula, <IMAGE> +TR <IMAGE> wherein R is a hydrogen atom or a C1 to C4 alkyl group, X is -SO2CH2CH2Cl, -SO2CH=CH2, -SO2CH2CH2OSO3H or -SO2CH2CH2OPO3H2, rings A, B and C are each a benzene or naphthalene ring which may have other substituent, m is 0 to 3 and n is 0 to 1. This dye is suitable for dyeing cellulose fibers brown to afford dyeings superior in fastnesses, acid stability, build-up property and level dyeing property.
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