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    • 100. 发明申请
    • INK JET RECORDING INK, INK JET IMAGE-FORMING METHOD AND INK JET RECORDING APPARATUS
    • 喷墨记录墨盒,喷墨打印方法和喷墨记录装置
    • US20100165019A1
    • 2010-07-01
    • US12600893
    • 2008-07-22
    • Shoji KoikeRyota KatoHitoshi Yoshino
    • Shoji KoikeRyota KatoHitoshi Yoshino
    • B41J29/38C09D11/02
    • B41M5/0023C09D11/322
    • The invention provides an ink jet recording ink containing a self-dispersion pigment, to the surface of which an anionic functional group represented by the following general formula (I) has been bonded directly or through another atomic group, water, a water-soluble substance having a coefficient of hydrophilicity-hydrophobicity of 0.37 or more as defined by the following equation (A) and a water-soluble substance having a coefficient of hydrophilicity-hydrophobicity of 0.25 or less as defined by the equation (A), and having a surface tension of 34 mN/m or less. wherein M1 and M2 are, independently of each other, a hydrogen atom, alkali metal, ammonium or organic ammonium; Coefficient of hydrophilicity-hydrophobicity=[(Water activity value of a 20% aqueous solution)−(Molar fraction of water in the 20% aqueous solution)]/[1−(Molar fraction of water in the 20% aqueous solution)]
    • 本发明提供一种含有自分散颜料的喷墨记录油墨,其表面由以下通式(I)表示的阴离子官能团直接或通过另一原子团,水,水溶性物质 具有如下式(A)所定义的亲水性 - 疏水性系数为0.37以上的亲水性 - 疏水性系数为0.25以下的水溶性物质,如式(A)所示,具有表面 张力34 mN / m以下。 其中M1和M2彼此独立地为氢原子,碱金属,铵或有机铵; 亲水性 - 疏水性系数= [(20%水溶液的水分活度值) - (20%水溶液中的水的摩尔分数)] / [1-(20%水溶液中的水的摩尔分数)]