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    • 71. 发明专利
    • Water-based black ink composition for inkjet recording and image forming method
    • 用于喷墨记录和图像形成方法的基于水的黑色墨水组合物
    • JP2012046672A
    • 2012-03-08
    • JP2010191272
    • 2010-08-27
    • Fujifilm Corp富士フイルム株式会社
    • NISHIMURA NAOKO
    • B41J2/01B41M5/00C09D11/00C09D11/322C09D11/324C09D11/40C09D11/54
    • C08K3/04C08K5/23C08K5/3417C08K5/3437
    • PROBLEM TO BE SOLVED: To provide a water-based black ink composition for inkjet recording, which has excellent color tone and scratch resistance.SOLUTION: The water-based black ink composition for inkjet recording includes: a carbon black pigment whose surface is coated with a first dispersant polymer containing a structural unit represented by a general formula (1); at least one kind of coloring pigment selected from the group consisting of a phthalocyanine pigment, a quinacridone pigment and an azo pigment; a coloring pigment whose surface is coated with a second dispersant polymer consisting of a structural unit group same as that of the first dispersant polymer or the first dispersant polymer; and an aqueous medium (in the formula: Rdenotes a hydrogen atom, a methyl group or the like; Ldenotes -COO-, -OCO-, -CONR-, -O- or a phenylene group; Rdenotes a hydrogen atom or an alkyl group; and Ldenotes a single bond or a bivalent linking group).
    • 要解决的问题:提供具有优异的色调和耐擦伤性的用于喷墨记录的水性黑色油墨组合物。 解决方案:用于喷墨记录的水性黑色油墨组合物包括:其表面涂覆有含有由通式(1)表示的结构单元的第一分散剂聚合物的炭黑颜料; 至少一种选自酞菁颜料,喹吖啶酮颜料和偶氮颜料的着色颜料; 其表面涂覆有由与第一分散剂聚合物或第一分散剂聚合物相同的结构单元组成的第二分散剂聚合物的着色颜料; 和水性介质(式中:R 1 表示氢原子,甲基等; L 1 表示 -COO-,-OCO-,-CONR - , - O-或亚苯基; R 2 表示氢 原子或烷基; L 2 表示单键或二价连接基团)。 版权所有(C)2012,JPO&INPIT