公开(公告)号：EP0703503A1

公开(公告)日：1996-03-27

申请号：EP95305607.4

申请日：1995-08-11

申请人： MITA INDUSTRIAL CO., LTD.

发明人： Funato, Masatomi, c/o Mita Industrial Co, Ltd ,  Ishimaru, Seijiro c/o Mita Industrial Co., Ltd. ,  Shimizu, Yoshitake, c/o Mita Industrial Co., Ltd ,  Kubo, Norio, c/o Mita Industrial Co., Ltd ,  Nagao, Kazuya, c/o Mita Industrial Co., Ltd ,  Asano, Terumichi, c/o Mita Industrial Co., Ltd

IPC分类号： G03G9/087 ,  G03G9/083 ,  G03G9/107 ,  G03G9/113 ,  G03G9/097

CPC分类号： G03G9/083 ,  G03G9/0817 ,  G03G9/08791 ,  G03G9/097 ,  G03G9/09716 ,  G03G9/09791 ,  G03G9/107 ,  G03G9/113

摘要： The invention provides toner for a two-component type developer containing toner particles including a binder resin and magnetic powder dispersed in the binder resin. The binder resin is made of a component including a resin having an anionic polar group. The magnetic powder is included in the toner particles at a proportion of 0.1 through 5 parts by weight on the basis of 100 parts by weight of the binder resin. The toner particles have a volume-based average particle diameter of 5 through 15 µm. Spacer particles having a volume-based average particle diameter of 0.05 through 1.0 µm are attached onto the surfaces of the toner particles.

摘要翻译： 本发明提供了一种双组分型显影剂用调色剂，其含有包含粘合剂树脂和分散在粘合剂树脂中的磁性粉末的调色剂颗粒。 粘合剂树脂由包含具有阴离子极性基团的树脂的组分制成。 基于100重量份的粘合剂树脂，磁性粉末以0.1至5重量份的比例包含在调色剂颗粒中。 调色剂颗粒具有5至15μm的基于体积的平均粒径。 具有基于体积的平均粒径为0.05-1.0μm的间隔剂颗粒附着到调色剂颗粒的表面上。