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    • 24. 发明申请
    • AQUEOUS COLORANT DISPERSION, METHOD OF PRODUCING THE AQUEOUS COLORANT DISPERSION, AND AQUEOUS INK FOR INKJET RECORDING
    • 水性色素分散剂,生成水性色素分散体的方法和喷墨记录用水性油墨
    • US20090088521A1
    • 2009-04-02
    • US12240233
    • 2008-09-29
    • Takafumi HosokawaTakahiro KatoMisato SasadaTakahiro Ishizuka
    • Takafumi HosokawaTakahiro KatoMisato SasadaTakahiro Ishizuka
    • C09D11/10C08L31/02
    • C09D17/001C09D11/326
    • The invention provides an aqueous colorant dispersion having: a colorant (A); a polymer (B); and an aqueous liquid medium (I), a method of producing the dispersion, and an aqueous ink for inkjet recording using the dispersion. The polymer (B) is a copolymer containing a hydrophilic structural unit and a hydrophobic structural unit. The hydrophobic structural unit contains a hydrophobic structural unit (a) containing a benzene ring which is not directly bonded to an atom that forms a main chain of the polymer (B). The hydrophilic structural unit contains a hydrophilic structural unit (b) containing an ionic group. The polymer (B) contains a structural unit (c) different from the hydrophobic structural unit (a) and the hydrophilic structural unit (b). A content of the hydrophobic structural unit and a content of the structural unit (c) with respect to a total mass of the polymer (B) are respectively in specific ranges.
    • 本发明提供一种水性着色剂分散体,其具有:着色剂(A); 聚合物(B); 和水性液体介质(I),分散体的制造方法和使用该分散体的喷墨记录用水性油墨。 聚合物(B)是含有亲水结构单元和疏水结构单元的共聚物。 疏水性结构单元含有疏水结构单元(a),其含有不直接键合到形成聚合物(B)的主链的原子的苯环。 亲水性结构单元包含含有离子基团的亲水性结构单元(b)。 聚合物(B)含有与疏水性结构单元(a)和亲水性结构单元(b)不同的结构单元(c)。 疏水结构单元的含量和结构单元(c)的含量相对于聚合物(B)的总质量分别在特定范围内。