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    • 18. 发明申请
    • COLORING MATTER CONSISTING OF TRISAZO COMPOUND, INK COMPOSITIONS, RECORDING METHOD, AND COLORED BODY
    • 色酮化合物,墨水组合物,记录方法和染色体的着色物质
    • US20120120148A1
    • 2012-05-17
    • US13377400
    • 2010-06-07
    • Takashi YoshimotoNoriko Kajiura
    • Takashi YoshimotoNoriko Kajiura
    • B41J2/175C09B31/28
    • D06P1/04B41M5/0023C08K5/22C08K5/3447C09B31/28C09B67/0083C09D11/328D06P1/39D06P5/30
    • Provided are a coloring matter for black ink which is highly soluble in water-based media, and ink compositions containing the same. A high-concentration aqueous solution and ink that contain the coloring matter are stable even when have been stored for a long period, and can produce printed images having extremely high density. Even when printing is conducted using the high-concentration aqueous solution, no bronzing occurs in the resulting printed images. The ink compositions can produce black recorded images which exhibit various excellent fastnesses, particularly excellent light fastness and ozone gas fastness. The coloring matter consists of at least one substance selected from among trisazo compounds represented by general formula (1), tautomers thereof, and salts of both. In general formula (1), R1 is unsubstituted C1-4 alkyl or the like; R2 is cyano or the like; R3 is a chlorine atom or the like; R5 to R7 are a hydrogen atom, unsubstituted C1-4 alkyl, sulfo-substituted C1-4 alkoxy, or the like; R8 to R10 are a hydrogen atom, unsubstituted C1-4 alkyl, sulfo-substituted C1-4 alkylthio, or the like; A is sulfo-substituted 2-naphthothiazolyl or the like; and a to d represent the positions at which the ring is substituted with R3 and sulfo.
    • 提供一种高度可溶于水性介质的黑色油墨的着色剂,以及含有该油墨组合物的油墨组合物。 含有色素的高浓度水溶液和油墨即使长期储存也是稳定的,并且可以生产具有极高密度的印刷图像。 即使当使用高浓度水溶液进行印刷时,在所得到的印刷图像中也不会发生烫伤。 油墨组合物可以产生显示出各种优异的牢度,特别优异的耐光性和耐臭氧气体牢度的黑色记录图像。 色素由至少一种选自由通式(1)表示的三偶氮化合物,其互变异构体和两者的盐组成的物质组成。 通式(1)中,R 1为未取代的C 1-4烷基等; R2是氰基等; R3是氯原子等; R5至R7是氢原子,未取代的C1-4烷基,磺基取代的C1-4烷氧基等; R 8〜R 10为氢原子,未取代的C 1-4烷基,磺基取代的C 1-4烷硫基等; A是磺基取代的2-萘并噻唑基等; 并且a至d表示环被R 3和磺基取代的位置。