公开(公告)号：US20080286668A1

公开(公告)日：2008-11-20

申请号：US12182031

申请日：2008-07-29

申请人： Koh Ishigami ,  Kazuo Terauchi ,  Noriyoshi Umeda ,  Tetsuya Ida ,  Naoki Okamoto ,  Yojiro Hotta ,  Yoshinobu Baba ,  Takayuki Itakura ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo

发明人： Koh Ishigami ,  Kazuo Terauchi ,  Noriyoshi Umeda ,  Tetsuya Ida ,  Naoki Okamoto ,  Yojiro Hotta ,  Yoshinobu Baba ,  Takayuki Itakura ,  Takeshi Yamamoto ,  Manami Haraguchi ,  Kenta Kubo

IPC分类号： G03G9/087 ,  G03G13/04

CPC分类号： G03G15/01 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/083 ,  G03G9/09 ,  G03G9/10

摘要： An object of the present invention is to provide a two-component developer which can achieve a high-definition image with a smaller toner laid-on level than a conventional one, provides a color gamut comparable to that of printing, can respond to an increase in printing speed, and allows an image with a stable tinge to be formed even in long-term use. The object can be achieved by a two-component developer containing a cyan toner and a magnetic carrier, the two-component developer being characterized in that the cyan toner has the following characteristics: (i) when the concentration of the cyan toner in a solution of the cyan toner in chloroform is represented by Cc (mg/ml) and the absorbance of the solution at a wavelength of 712 nm is represented by A712, a relationship between Cc and A712 satisfies the relationship of 2.00

摘要翻译： 本发明的目的是提供一种双组分显影剂，其可以实现具有比常规的更小的调色剂沉积水平的高清晰度图像，提供与印刷相当的色域，可以响应于增加 在印刷速度上，并且即使长期使用也能够形成具有稳定色调的图像。 该目的可以通过含有青色调色剂和磁性载体的双组分显影剂来实现，该双组分显影剂的特征在于，青色调色剂具有以下特征：（i）当溶液中青色调色剂的浓度 的氯仿中的青色调色剂以Cc（mg / ml）表示，并且波长为712nm的溶液的吸光度由A712表示，Cc和A712之间的关系满足2.00

公开(公告)号：US07112395B2

公开(公告)日：2006-09-26

申请号：US10792712

申请日：2004-03-05

申请人： Tetsuya Ida ,  Yasuhiro Ichikawa ,  Hirohide Tanikawa ,  Nozomu Komatsu

发明人： Tetsuya Ida ,  Yasuhiro Ichikawa ,  Hirohide Tanikawa ,  Nozomu Komatsu

IPC分类号： G03G9/087

CPC分类号： G03G9/08702 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08755

摘要： To provide a color toner which is effective in mitigating contamination of a charging member, which is good at low temperature fixing in high-speed copying, and which is excellent in blocking resistance and electrification stability in continuous copying. Provided is a color toner containing at least a binder resin, a colorant, and a releasing agent, in which: (i) the binder resin contains at least a polyester unit; (ii) a weight average particle diameter of the color toner is greater than 6.5 μm and equal to or less than 11 μm; (iii) an average circularity A of particles in the color toner each having a circle-equivalent diameter of 3 μm or more satisfies the relationship of 0.915≦A≦0.960; (iv) a permeability B (%) of the color toner in a 45 vol % aqueous solution of methanol satisfies the relationship of 10≦B≦70; and (v) an endothermic curve obtained through differential thermal analysis (DSC) measurement of the color toner has one or multiple endothermic peaks in the temperature range of 30 to 200° C., and a temperature Tsc of the highest endothermic peak of the one or multiple endothermic peaks satisfies the relationship of 65° C.

摘要翻译： 提供一种有效地减轻高速复印中低温定影良好的充电部件的污染的彩色调色剂，并且在连续复印中的耐粘连性和带电稳定性优异。 提供了至少含有粘合剂树脂，着色剂和脱模剂的彩色调色剂，其中：（i）粘合剂树脂至少含有聚酯单元; （ii）彩色调色剂的重均粒径大于6.5μm且等于或小于11μm; （iii）各自具有3当量圆直径为3μm以上的彩色调色剂中的平均圆形度A满足0.915≤A<= 0.960的关系; （iv）在45体积％的甲醇水溶液中的彩色调色剂的渗透率B（％）满足10≤B≤70的关系; 和（v）通过彩色调色剂的差示热分析（DSC）测量获得的吸热曲线在30至200℃的温度范围内具有一个或多个吸热峰，并且一个最高吸热峰的温度Tsc 或多个吸热峰满足65℃的关系。