公开(公告)号：US20140342281A1

公开(公告)日：2014-11-20

申请号：US14270545

申请日：2014-05-06

Applicant: KONICA MINOLTA, INC.

Inventor： CHIAKI YAMADA ,  MASAHIRO ANNO ,  MIKIHIKO SUKENO

IPC: G03G9/08 ,  G03G9/09

CPC classification number: G03G9/08 ,  G03G9/0874 ,  G03G9/08791 ,  G03G9/09 ,  G03G9/0926 ,  G03G9/09733

Abstract: An electrostatic latent image developer of the present invention includes a resin, a colorant and a colorant dispersant, wherein the colorant dispersant contains a first polymer compound containing a constitutional unit derived from a monomer A, a constitutional unit derived from a monomer B and a constitutional unit derived from a monomer C, the monomer A is 4-vinylpyridine, the monomer B is CH2═CR1—COOR2 (where R1 represents hydrogen or a methyl group; and R2 represents an alkyl group having 1 to 10 carbon atoms), and the monomer C is CH2═CR3—COOR4 (where R3 represents hydrogen or a methyl group; R4 represents (CH2CH2O)nCH3 or (CH2CH2O)nCH2CH3; and n represents an integer of 12 to 18).

Abstract translation: 本发明的静电潜像显影剂包括树脂，着色剂和着色剂分散剂，其中着色剂分散剂包含含有源自单体A的结构单元的第一高分子化合物，衍生自单体B的结构单元和结构式 来自单体C的单元，单体A是4-乙烯基吡啶，单体B是CH 2 = CR 1 -COOR 2（其中R 1表示氢或甲基;且R 2表示具有1至10个碳原子的烷基），并且 单体C是CH 2 = CR 3 -COOR 4（其中R 3表示氢或甲基; R 4表示（CH 2 CH 2 O）n CH 3或（CH 2 CH 2 O）n CH 2 CH 3; n表示12至18的整数）。

公开(公告)号：US20140087305A1

公开(公告)日：2014-03-27

申请号：US14036854

申请日：2013-09-25

Applicant: KONICA MINOLTA, INC.

Inventor： Chiaki YAMADA ,  MASAHIRO ANNO ,  YUKIKO UNO ,  SATOSHI MATSUMOTO

IPC: G03G9/13

CPC classification number: G03G9/132 ,  G03G9/122

Abstract: A liquid developer of the present invention includes a toner particle and an insulating liquid, the toner particle including a resin and a pigment, the resin including a polyester resin, the pigment including a first pigment, a second pigment, and a third pigment, the first pigment being a carbon black, 10 to 25 mass % of the first pigment being included in the toner particle, the second pigment being nigrosine, 3 to 15 mass % of the second pigment being included in the toner particle, the third pigment being at least one organic pigment selected from a group consisting of a phthalocyanine blue pigment, a phthalocyanine green pigment, a carmine-based pigment, a naphthol-based pigment, a quinacridon-based pigment, an azo-based pigment, a benzimidazolone-based pigment, and an isoindoline-based pigment, 5 to 20 mass % of the third pigment being included in the toner particle.

Abstract translation: 本发明的液体显影剂包括调色剂颗粒和绝缘液体，所述调色剂颗粒包括树脂和颜料，所述树脂包括聚酯树脂，所述颜料包括第一颜料，第二颜料和第三颜料， 第一颜料为炭黑，调色剂颗粒中包含10〜25质量％的第一颜料，第二颜料为苯胺黑，第三颜料中含有3〜15质量％的第二颜料，第三颜料为 选自酞菁蓝颜料，酞菁绿颜料，胭脂红系颜料，萘酚系颜料，喹吖啶酮系颜料，偶氮系颜料，苯并咪唑酮系颜料， 和异二氢吲哚系颜料，调色剂颗粒中含有5〜20质量％的第三颜料。