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发明公开
CN110501882A 静电图像显影用双组分显影剂 审中-实审

静电图像显影用双组分显影剂
摘要：
本发明涉及静电图像显影用双组分显影剂。本发明提供一种静电图像显影用双组分显影剂，其即使在连续印刷具有高印字率的图像时，可以保持高图像质量并且抑制灰雾的发生。静电图像显影用双组分显影剂，其具有：调色剂粒子和载体粒子，所述调色剂粒子包含调色剂母体粒子及设置在所述调色剂母体粒子表面上的外部添加剂；所述载体粒子包含芯材粒子及设置在所述芯材粒子表面上的包覆部，其中，所述外部添加剂含有氧化铝粒子，所述芯材粒子的露出面积比率为4.0％以上且15.0％以下。
摘要（英）：

The present invention provides a two-component developer for electrostatic charge image development, the two-component developer enabling a high image quality to be kept and enabling the occurrence offogging to be suppressed even in continuous printing of an image high in coverage rate. The two-component developer for electrostatic charge image development includes a toner particle including a toner base particle and an external additive disposed on the surface of the toner base particle, and a carrier particle including a core material particle and a covering section disposed on the surfaceof the core material particle, wherein the external additive includes an alumina particle, and the percentage of exposed area of the core material particle is 4.0% or more and 15.0% or less.

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