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    • 1. 发明授权
    • Dispersion ink
    • 分散油墨
    • US6099627A
    • 2000-08-08
    • US123577
    • 1998-07-28
    • Shoji SaibaraShigeo AoyamaTetsuya Taki
    • Shoji SaibaraShigeo AoyamaTetsuya Taki
    • C09D11/00C09D11/02
    • C09D11/326
    • The present invention provides a dispersion ink excellent not only high-definition print quality but also re-dispersibility. More particularly, the present invention provides a dispersion ink comprising at least a pigment or a disperse dye, which has a particle diameter of 75 nm or less, an amphiphilic compound, and water, said amphiphilic compound having a hydrophilic portion composed of a poly(ethylene oxide) and a hydrophobic portion composed of an alkyl group and/or an aromatic group and bonded to the hydrophilic portion, said amphiphilic compound containing at least one ionic group at the end of the poly(ethylene oxide) constituting the hydrophilic portion which is not bonded to the hydrophobic portion, and the whole amphiphilic compound having a molecular weight of 5,000 or less, wherein between the particle diameter of said pigment or said disperse dye and the molecular weight of said amphiphilic compound, there is the relationship represented by the following expression (1):0.004.ltoreq.(the particle diameter (nm) of the pigment or the disperse dye)/(the molecular weight of the amphiphilic compound).ltoreq.0.04. (1)
    • 本发明提供一种不仅具有高清晰度打印质量而且再分散性优异的分散油墨。 更具体地说,本发明提供一种分散油墨,其至少含有粒径为75nm以下的颜料或分散染料,两亲性化合物和水,所述两亲性化合物具有由聚( 环氧乙烷)和由烷基和/或芳族基团组成并与亲水部分结合的疏水部分,所述两亲化合物在构成亲水部分的聚(环氧乙烷)末端含有至少一个离子基团,其为 不与疏水部分结合的整体两亲性化合物和分子量为5,000以下的整体两亲性化合物,其中在所述颜料或所述分散染料的粒径与所述两亲性化合物的分子量之间存在以下关系: 表达式(1):0.004
    • 5. 发明授权
    • Pigmented ink and process for production thereof
    • 着色油墨及其生产方法
    • US6113680A
    • 2000-09-05
    • US119392
    • 1998-07-21
    • Shigeo AoyamaShoji SaibaraYuichi Sakurai
    • Shigeo AoyamaShoji SaibaraYuichi Sakurai
    • C09D11/00C09D11/322C09D11/02
    • C09D11/322
    • The present invention relates to a pigmented ink, in particular, an ink suitable for an ink-jet printing method comprising jet of ink droplets from a print head. More particularly, it relates to a pigmented ink excellent in the dispersibility and dispersion stability of pigment particles, storage stability, etc. There is provided a pigmented ink which comprises (1) an organic pigment having a surface made hydrophobic by adsorption thereon or binding thereto of an organic substance, (2) an amphiphilic compound composed of a poly(ethylene oxide) as a hydrophilic portion and an alkyl group and/or an aromatic group as a hydrophobic portion, and (3) water, and is excellent in the dispersion stability of pigment particles and storage stability by virtue of the above composition.
    • 本发明涉及着色油墨,特别是涉及一种适用于喷墨打印方法的油墨,其特征在于包括从打印头喷射墨滴。 更具体地,涉及颜料颗粒的分散性和分散稳定性优异的着色油墨,保存稳定性等。提供了一种着色油墨,其包含(1)具有通过在其上吸附或结合的疏水性表面的有机颜料 的有机物质,(2)由作为亲水部分的聚(环氧乙烷)和作为疏水部分的烷基和/或芳族基团构成的两亲性化合物和(3)水,并且分散性优异 由于上述组成,颜料颗粒的稳定性和储存稳定性。