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Fiber reactive bisazo dye having both a vinylsulfone type reactive group and an ortho-nitrophenyl group
Fiber reactive bisazo dye having both a vinylsulfone type reactive group and an ortho-nitrophenyl group
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机译:具有乙烯基砜型反应性基团和邻硝基苯基基团的纤维反应性双偶氮染料
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摘要
A bisazo reactive compound represented by a free acid of the formula, ##STR1## wherein X is --CH═CH.sub.2 or --CH.sub.2 CH.sub.2 R (R is a group capable of being split off with an alkali); Y is phenylene group or naphthylene group, said phenylene group being unsubstituted or substituted by 1-3 identical or different substituent(s) selected from C. sub.1-C.sub.4 alkyl groups, C.sub.1 -C.sub.4 alkoxy groups, chlorine atom and bromine atom, and said naphthylene group being unsubstituted or substituted by 1-3 sulfonic acid group(s); and Z is hydrogen atom, halogen atom, nitro group, cyano group, C.sub.1 -C.sub.4 alkyl group or C. sub.1 -C.sub.4 alkoxy group. The compound is useful for dyeing cellulose, polyamide or polyurethane fibers in a blue-black color having excellent fastnesses, particularly chlorine fastness, and excellent built-up property.
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