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    • 11. 发明公开
    • INK COMPOSITION, INKJET RECORDING METHOD, AND COLORED MATERIAL
    • TINTENZUSAMMENSETZUNG,TINTENSTRAHLAUFZEICHNUNGSVERFAHREN UNDGEFÄRBTESMATERIAL
    • EP2589630A1
    • 2013-05-08
    • EP11800742.6
    • 2011-06-24
    • Nippon Kayaku Kabushiki Kaisha
    • KAWAGUCHI, AkiraMATSUI, TakahikoYOSHIMOTO, TakashiOOSHIMA, Kenji
    • C09D11/00B41J2/01B41M5/00C09B31/28C09B35/58C09B43/16
    • C09D11/328B41M5/5218C09B31/28C09B31/30C09B35/56C09B43/16C09B67/0055
    • Disclosed is an aqueous black ink composition which enables the formation of an excellent black recorded image having extremely high ozone gas resistance and a neutral and achromatic color. The ink composition comprises: a dye (I) which comprises at least one compound represented by specific formula (1) or at least one tautomer or salt of the compound; a dye (II) which comprises at least one compound represented by specific formula (3) or at least one tautomer or salt of the compound; and a dye (III) which comprises at least one compound represented by specific formula (4) or at least one tautomer or salt of the compound. In formula (1), R 1 and R 2 independently represent a hydrogen atom, a sulfo group or the like; R 3 and R 4 independently represent a halogen atom, a sulfo group or the like; and n represents 0 or 1. In formula (3), m represents 0 or 1; R 101 to R 103 independently represent a hydrogen atom, a sulfo group or a C1-C4 alkoxy group; and a group D represents a phenyl or naphthyl group substituted by 1 to 3 slfo group. In formula (4), R 201 to R2 04 independently represent a hydrogen atom, or a C1-C4 alkoxy group substituted by a slufo group.
    • 公开了一种黑色油墨组合物,其能够形成具有极高的耐臭氧气体阻力和中性和无色性的优异的黑色记录图像。 油墨组合物包含:包含至少一种由特定式(1)表示的化合物或化合物的至少一种互变异构体或盐的染料(I) 包含至少一种由特定式(3)表示的化合物或该化合物的至少一种互变异构体或盐的染料(II) 和包含至少一种由特定式(4)表示的化合物或该化合物的至少一种互变异构体或盐的染料(III)。 在式(1)中,R 1和R 2独立地表示氢原子,磺基等; R 3和R 4独立地表示卤素原子,磺基等; 在式(3)中,m表示0或1; R 101〜R 103分别独立地表示氢原子,磺基或C 1〜C 4烷氧基。 并且基团D表示被1至3个硅基团取代的苯基或萘基。 式(4)中,R 201〜R2 04独立地表示氢原子或被slufo基取代的C1-C4烷氧基。