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    • 7. 发明公开
    • AZO COMPOUND, INK COMPOSITION, RECORDING METHOD AND COLORED MATTER
    • AZO-VERBINDUNG,TINTENZUSAMMENSETZUNG,AUFZEICHNUNGSVERFAHREN UNDGEFÄRBTESMATERIAL
    • EP1889882A1
    • 2008-02-20
    • EP06766510.9
    • 2006-06-08
    • NIPPON KAYAKU KABUSHIKI KAISHA
    • OHNO, HiroakiMATSUI, TakahikoTAKAHASHI, ShinjirouSHIRASAKI, Yasuo
    • C09B33/18B41J2/01B41M5/00C09D11/00
    • C09B33/18C09D11/328
    • The present invention relates to an azo compound represented by the following formula (1)
      [KA 1]

      (wherein, each of R 1 and R 2 independently represents a hydrogen atom, a halogen atom, a cyano group, a carboxyl group, a sulfo group, a sulfamoyl group or the like, each of m and n independently represents 0 or 1, X represents a sulfo group, B represents a substituted p-phenylene group or a substituted p-naphthylene group (these may be substituted by a group selected from the group consisting of a sulfo group, a sulfo C1 to C4 alkoxy group, a C1 to C4 alkyl group and the like), and C represents a substituted phenyl group or a naphthyl group)
      or a salt thereof, an ink composition containing it, especially a black ink composition. Said pentakis-azo compound is excellent in solubility to medium whose main component is water and suitable for an water-soluble composition (ink composition and the like) for inkjet recording and writing tools; recorded articles recorded using said composition are excellent in fastnesses such as light fastness and ozone gas fastness; bronzing is not generated on the recorded images; and its recording liquids are good in storage stability.
    • 本发明涉及由下式(1)[KA 1]表示的偶氮化合物(其中,R 1和R 2各自独立地表示氢原子,卤素原子,氰基,羧基,磺基 基团,氨磺酰基等,m和n各自独立地表示0或1,X表示磺基,B表示取代的对亚苯基或取代的对亚萘基(可以被选定的基团取代) 由磺基,磺基C1〜C4烷氧基,C1〜C4烷基等构成的基团),C表示取代苯基或萘基)或其盐,含有它的油墨组合物 ,特别是黑色油墨组合物。 所述五价 - 偶氮化合物对主要成分为水的介质的溶解性优异,适用于喷墨记录和书写工具的水溶性组合物(油墨组合物等); 使用所述组合物记录的记录物具有优异的耐光性,例如耐光性和耐臭氧气体牢度; 记录图像上不产生烫金; 其记录液体的储存稳定性好。