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    Photographic materials comprising formazan dyes
    3.
    发明授权
    Photographic materials comprising formazan dyes 失效
    包含FORMAZAN DYES的摄影材料

    公开(公告)号：US3698908A

    公开(公告)日：1972-10-17

    申请号：US3698908D

    申请日：1971-02-19

    申请人： ILFORD LTD

    发明人： MACDONALD ERIC ,  CAMPBELL FREDERICK

    IPC分类号： C09B50/06 ,  G03C1/83 ,  G03C1/84

    CPC分类号： C09B50/06 ,  G03C1/83

    摘要： THE APPLICATION DESCRIBES A FORMAZAN DYE OF THE FORMULA:

    R1-N=N-C(-R2)=N-NH-R3-NH-N=C(-R2)-N=N-R1

    WHEREIN R1 IS AN ARYL OR SUBSTITUTED ARYL GROUP, R2 IS AN ALKYL GROUP CONTAINING UP TO 6 CARBON ATOMS AND R3 IS EITHER A DIPHENYL OR A STILBENE LINKAGE GROUP WHEREIN, IN EITHER GROUP, EACH OF THE BENZENE NUCLEI IS SUBSTITUTED WITH A SULPHONIC ACID GROUP OR AN ALKALI METAL OR AMMONIUM SALT THEREOF.

    Metallized bis-formazans
    4.
    发明授权
    Metallized bis-formazans 失效
    金属化双甲烷

    公开(公告)号：US4158003A

    公开(公告)日：1979-06-12

    申请号：US741017

    申请日：1976-11-11

    申请人： Otto Bitterlin ,  Paul Dussy

    发明人： Otto Bitterlin ,  Paul Dussy

    IPC分类号： C09B50/06 ,  C09B45/48

    CPC分类号： C09B50/06

    摘要： 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.

    摘要翻译： 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。