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    • 2. 发明授权
    • Metallized bis-formazans
    • 金属化双甲烷
    • US4158003A
    • 1979-06-12
    • US741017
    • 1976-11-11
    • Otto BitterlinPaul Dussy
    • Otto BitterlinPaul Dussy
    • C09B50/06C09B45/48
    • C09B50/06
    • Heavy-metal-containing bisformazan dyestuffs of the formula ##STR1## WHEREIN A.sub.1, A.sub.2, B.sub.1 and B.sub.2 are the same or different and each represents an unsubstituted or substituted o-phenylene radical or an o-naphthylene radical,R.sub.1 and R.sub.2 are the same or different and each represent a monovalent organic radical,Me.sub.1 and Me.sub.2 each represent nickel or copper,X.sub.1 and X.sub.2 are the same or different and each represents a metal-binding substituent connected to A.sub.1, B.sub.1, A.sub.2 or B.sub.2 in a position ortho to that to which the nitrogen is linked,Y represents the radical of a dibasic carboxylic acid or a radical which is derived from an, at least, bifunctional heterocyclic compound,Z represents a salt-forming water-solubilizing group, dissociating acid in water, selected from --SO.sub.3.sup..crclbar. M.sym. and --COO.sup..crclbar. M.sup..sym.wherein M.sup..sym. represents a cation,N represents a number from 2 to 6, andWherein aromatic radicals present may contain further substituents known per se for use in azo dyestuffs, and wherein the grouping --NH--Y--HN-- is bound directly or via a bridging member to a ring carbon atom of A.sub.1, A.sub.2, B.sub.1, B.sub.2, R.sub.1 or R.sub.2 ,which bis-formazans are substantive dyestuffs suitable for the dyeing or printing of textile material made from natural or regenerated cellulose. The aforesaid bis-formazan dyestuffs are distinguished by high coloring strength and substantivity to cellulose textile material. The dyeings obtained therewith are of a pure shade of color and have good fastness properties, especially to light and wet.
    • 具有下式的重金属的双甲缩醛染料,其中A1,A2,B1和B2相同或不同,并且各自表示未取代或取代的邻亚苯基或邻亚萘基, R1和R2相同或不同,各自表示一价有机基团,Me1和Me2各自表示镍或铜,X1和X2相同或不同,表示与A1,B1,A2或B2连接的金属结合取代基 在与氮连接的位置的邻位,Y表示二元羧酸或至少由双官能的杂环化合物衍生的基团的基团,Z表示形成盐的水溶性基团,离解的 其中M(+)表示阳离子,N代表从2到6的数目,以及存在于本文中的AROMATIC RADICALS可能含有的 在AZO DYESTUFFS和本集团所使用的更多替代品 ING -NH-Y-HN-直接键合或通过桥连构件结合到A1,A2,B1,B2,R1或R2的环碳原子上,双甲烷是适合纺织材料的染色或印花的实质性染料 由天然或再生纤维素制成。 上述双甲an染料的特征在于高着色强度和对纤维素纺织材料的亲和性。 由此获得的染色具有纯色的色泽,并且具有良好的牢度性能,特别是对于光和湿。