Aqueous ink composition, inkjet recording method, and colored material
    10.
    发明授权
    Aqueous ink composition, inkjet recording method, and colored material 有权
    水性油墨组合物,喷墨记录方法和着色材料

    公开(公告)号:US09428661B2

    公开(公告)日:2016-08-30

    申请号:US14905942

    申请日:2014-06-12

    Abstract: An aqueous black ink composition that can form black recorded images having excellent light resistance and water resistance, in particular, being hardly discolored by light. The aqueous ink composition contains, as colorants, at least both a compound represented by Formula (1) or its salt or a mixture thereof and a colorant having a maximum absorption wavelength λmax in a range of 560 to 680 nm and having a phthalocyanine skeleton. In Formula (1), R1, R2, R5, R6 and R7 each independently represent, for example, a hydrogen atom, a carboxy group, a sulfo group, or a nitro group; R3 and R4 each independently represent, for example, a hydrogen atom or a sulfo group; and n represents 0 or 1.

    Abstract translation: 可以形成具有优异的耐光性和耐水性的黑色记录图像的黑色油墨组合物,特别是几乎不被光褪色。 水性油墨组合物至少包含式(1)表示的化合物或其盐或其混合物和具有在560至680nm范围内的最大吸收波长λmax和具有酞菁骨架的着色剂。 在式(1)中,R 1,R 2,R 5,R 6和R 7各自独立地表示例如氢原子,羧基,磺基或硝基; R 3和R 4各自独立地表示例如氢原子或磺基; n表示0或1。

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