摘要 |
<p>This invention provides a novel pigment, which is used, for example, in color image display devices and can form a blue pixel capable of providing a high level of bright saturation, particularly a refined pigment, which has bright hue and is excellent in pigment properties such as lightfastness, solvent resistance and heat resistance, and a process for producing the same, a pigment dispersion using the pigment, and an ink for a color filter. The novel pigment is a subphthalocyanine pigment that is prepared by converting subphthalocyanine represented by general formula (1), in which X represents a halogen atom, to a pigment, has diffraction peaks at least at diffraction angles (2?)7.0°, 12.3°, 20.4° and 23.4° in X-ray diffraction and an average particle diameter of 120 to 20 nm.</p> |
申请人 |
DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.;NIPPON STEEL CHEMICAL CO., LTD.;HIRATA, NAOKI;OKAMOTO, HISAO;ZAMA, YOSHIYUKI;NAKAMURA, MICHIEI;YANAGIMOTO, TETSUYA;YAMADA, HIROAKI;TSUCHIYA, MASAHIRO |
发明人 |
HIRATA, NAOKI;OKAMOTO, HISAO;ZAMA, YOSHIYUKI;NAKAMURA, MICHIEI;YANAGIMOTO, TETSUYA;YAMADA, HIROAKI;TSUCHIYA, MASAHIRO |