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    • 8. 发明专利
    • Water-soluble black coloring matter
    • 水溶性黑色颜料
    • JP2005344002A
    • 2005-12-15
    • JP2004165204
    • 2004-06-03
    • Yasusaburo Sakai泰三郎 酒井
    • SAKAI YASUSABURO
    • B41J2/01B41M5/00C09B3/82C09B5/22C09D11/00C09D11/16C09D11/17C09D11/328
    • PROBLEM TO BE SOLVED: To provide a water-soluble black coloring matter suitable for colorants of an ink for ink-jet printing, having excellent light fastness, water resistance and fastness to oxidizing gas, great solubility and raised adsorbability.
      SOLUTION: The water-soluble black coloring matter in which a sulfonic acid group is introduced into a polycyclic aromatic compound represented by formula (1) has the remarkably improved solubility and raised adsorbability of the colorant. Thereby, the ink coloring matter is adsorbed on the surface of paper by ink-jet printing to provide high color development. The light fastness, fastness to oxidizing gases, water resistance and wet color fastness of the water-soluble coloring matter are simultaneously improved.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供适用于喷墨印刷用油墨的着色剂的水溶性黑色着色剂,具有优异的耐光性,耐水性和对氧化气体的牢固性,高溶解性和提高的吸附性。 解决方案:将磺酸基引入由式(1)表示的多环芳族化合物中的水溶性黑色色素具有明显提高的着色剂的溶解性和提高的吸附性。 由此,油墨着色剂通过喷墨印刷吸附在纸表面上,以提供高显色性。 水溶性着色剂的耐光牢度,耐氧化性,耐水性和湿色牢度同时提高。 版权所有(C)2006,JPO&NCIPI