申请人:BASF Aktiengesellschaft
公开号:US04491543A1
公开(公告)日:1985-01-01
The present invention discloses substituted phenyl di and trisazo dyes free of reactive groups having two or three sulfonic acid groups, of the general formula: ##STR1## wherein D.sup.1 is ##STR2## Z is hydrogen or D.sup.4 --N.dbd.N--; D.sup.2 is phenyl substituted by hydroxyl, hydroxysulfonyl, chlorine or nitro, or is naphthyl substituted by hydroxy, hydroxysulfonyl or nitro, X, independently of one another, are hydroxyl or amino, D.sup.3 is phenyl which is substituted by hydroxysulfonyl, chlorine, bromine, methyl, methoxy, ethoxy, nitro, phenylamino, sulfophenylamino or nitrosulfophenylamino, or is naphthyl which is substituted by hydroxysulfonyl; D.sup.4 is phenyl which is unsubstituted or substituted by methyl, ethyl, methoxy, ethoxy, chlorine, bromine, nitro, sulfamoyl or hydroxysulfonyl, or is naphthyl which is substituted by hydroxysulfonyl; and R.sup.2 is methyl, ethyl or allyl; the rings B and E may additionally be substituted by methyl, ethyl, methoxy, ethoxy, chlorine, bromine or hydroxysulfonyl, with the proviso that D.sup.2 has a hydroxyl group ortho to the azo bond; or the iron, manganese, cobalt, chromium, nickel or copper complexes of this dye. These compounds, particularly in the form of their metal complexes are suitable for dyeing nitrogen-containing fibers such as wool, and preferably, leather. The present dyes yield very fast brown hues, in particular on retanned leather.
本发明公开了不含反应基团的取代苯基二和三偶氮染料,具有两个或三个磺酸基团,其一般公式为:##STR1## 其中D.sup.1是##STR2## Z是氢或D.sup.4 --N.dbd.N--; D.sup.2是取代基为羟基、羟基磺酰基、氯或硝基的苯基,或者是取代基为羟基、羟基磺酰基或硝基的萘基,X,独立地,是羟基或氨基,D.sup.3是取代基为羟基磺酰基、氯、溴、甲基、甲氧基、乙氧基、硝基、苯基氨基、磺苯基氨基或硝基磺苯基氨基的苯基,或者是取代基为羟基磺酰基的萘基;D.sup.4是未取代或取代基为甲基、乙基、甲氧基、乙氧基、氯、溴、硝基、磺酰胺基或羟基磺酰基的苯基,或者是取代基为羟基磺酰基的萘基;R.sup.2是甲基、乙基或丙烯基;环B和E还可以取代基为甲基、乙基、甲氧基、乙氧基、氯、溴或羟基磺酰基,条件是D.sup.2在偶氮键的邻位有一个羟基;或者这种染料的铁、锰、钴、铬、镍或铜络合物。这些化合物,尤其是它们的金属络合物形式,适用于染含氮纤维,如羊毛,尤其是皮革。本发明的染料能产生非常快色的棕色调,特别是在重鞣皮革上。