公开(公告)号：US20140087302A1

公开(公告)日：2014-03-27

申请号：US14030394

申请日：2013-09-18

Applicant: Konica Minolta, Inc.

Inventor： Sho KIM ,  Satoshi MATSUMOTO ,  Naoki YOSHIE ,  Kenji HAYASHI

IPC: G03G9/13 ,  G03G9/08

CPC classification number: G03G9/13 ,  G03G9/0804 ,  G03G9/131 ,  G03G9/132 ,  G03G9/133

Abstract: In a liquid developer in which toner particles are dispersed in an insulating liquid, the toner particles have a core-shell structure that first resin particles containing a first resin are attached to or cover surfaces of second resin particles containing a second resin. The second resin particles further contain a pigment and a dispersant for pigment, and solubility of the dispersant for pigment in the insulating liquid is not higher than 10 mass % at 25° C.

Abstract translation: 在其中调色剂颗粒分散在绝缘液体中的液体显影剂中，调色剂颗粒具有核 - 壳结构，其中含有第一树脂的第一树脂颗粒附着或覆盖包含第二树脂的第二树脂颗粒的表面。 第二树脂颗粒还含有颜料和颜料用分散剂，绝缘液中颜料分散剂的溶解度在25℃下不高于10质量％

公开(公告)号：US20140234769A1

公开(公告)日：2014-08-21

申请号：US14184752

申请日：2014-02-20

Applicant: Konica Minolta, Inc.

Inventor： Naoki YOSHIE ,  Masahiro ANNO ,  Keiko MOMOTANI ,  Miyuki HOTTA ,  Satoshi MATSUMOTO ,  Sho KIM ,  Yukiko UNO

IPC: G03G9/12

CPC classification number: G03G9/12

Abstract: A liquid developer includes an insulating liquid and a plurality of toner particles. The plurality of toner particles has a median size not smaller than 1 μm and not greater than 3 μm as a whole. In the plurality of toner particles, average circularity is not smaller than 0.90 and not greater than 0.96, and a standard deviation of circularity is not smaller than 0.02 and not greater than 0.10.

Abstract translation: 液体显影剂包括绝缘液体和多个调色剂颗粒。 多个调色剂颗粒整体上具有不小于1μm且不大于3μm的中值粒径。 在多个调色剂颗粒中，平均圆形度不小于0.90且不大于0.96，圆形度的标准偏差不小于0.02且不大于0.10。