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1. 发明申请

WO2013100187A1 MAGNETIC TONER 审中-公开
标题翻译：磁性墨粉
公开(公告)号：WO2013100187A1
公开(公告)日：2013-07-04
申请号：PCT/JP2012/084291
申请日：2012-12-26
申请人： CANON KABUSHIKI KAISHA
发明人： MAGOME, Michihisa , HASEGAWA, Yusuke , DOJO, Tadashi
IPC分类号： G03G9/083 , G03G9/08
CPC分类号： G03G9/0839 , G03G9/0825 , G03G9/0833 , G03G9/0835 , G03G9/09708 , G03G9/09725
摘要： The magnetic toner includes magnetic toner particles comprising a binder resin and a magnetic body and inorganic fine particles present on the surface of the magnetic toner particles, wherein the inorganic fine particles present on the surface of the magnetic toner particles comprise metal oxide fine particles, the metal oxide fine particles containing silica fine particles, and optionally containing titania fine particles and alumina fine particles, and a content of the silica fine particles being at least 85 mass% with respect to a total mass of the silica fine particles, the titania fine particles and the alumina fine particles, wherein; when a coverage ratio A (%) is a coverage ratio of the magnetic toner particle's surface by the inorganic fine particles and a coverage ratio B (%) is a coverage ratio of the magnetic toner particle' surface by the inorganic fine particles that are fixed to the magnetic toner particle's surface, the magnetic toner has a coverage ratio A, a coefficient of variation on the coverage ratio A, a ratio of the coverage ratio B to the coverage ratio A, and a compression ratio in a specific range.
摘要翻译：磁性调色剂包括磁性调色剂颗粒，其包含粘结剂树脂和磁性体，以及磁性调色剂颗粒表面上存在的无机细颗粒，其中磁性调色剂颗粒表面上存在的无机细颗粒包含金属氧化物细颗粒，含有二氧化硅微粒的金属氧化物微粒，任选地含有二氧化钛微粒和氧化铝微粒，二氧化硅微粒的含量相对于二氧化硅微粒的总质量为85质量％以上，二氧化钛微粒和氧化铝微粒，其中; 当覆盖率A（％）是无机细颗粒的磁性调色剂颗粒的表面的覆盖率，覆盖率B（％）是固定的无机细颗粒的磁性调色剂颗粒表面的覆盖率时对于磁性调色剂颗粒的表面，磁性调色剂具有覆盖率A，覆盖率A的变化系数，覆盖率B与覆盖率A的比率以及特定范围内的压缩比。

2. 发明申请

WO2013100183A1 MAGNETIC TONER 审中-公开
标题翻译：磁性墨粉
公开(公告)号：WO2013100183A1
公开(公告)日：2013-07-04
申请号：PCT/JP2012/084287
申请日：2012-12-26
申请人： CANON KABUSHIKI KAISHA
发明人： HASEGAWA, Yusuke , DOJO, Tadashi , MAGOME, Michihisa
IPC分类号： G03G9/08 , G03G9/083 , G03G9/087
CPC分类号： G03G9/0834 , G03G9/081 , G03G9/0819 , G03G9/0825 , G03G9/0827 , G03G9/083 , G03G9/0833 , G03G9/0835 , G03G9/0836 , G03G9/08755 , G03G9/08795 , G03G9/09708 , G03G9/09725
摘要： A magnetic toner contains magnetic toner particles containing a binder resin and a magnetic body, and inorganic fine particles present on the surface of the magnetic toner particles, wherein the inorganic fine particles present on the surface of the magnetic toner particles contain metal oxide fine particles, the metal oxide fine particles containing silica fine particles, and optionally containing titania fine particles and alumina fine particles, and a content of the silica fine particles being at least 85 mass% with respect to a total mass of the silica fine particles, the titania fine particles and the alumina fine particles, when a coverage ratio A(%) is a coverage ratio of the magnetic toner particles' surface by the inorganic fine particles and a coverage ratio B(%) is a coverage ratio of the magnetic toner particles' surface by the inorganic fine particles that are fixed to the magnetic toner particles' surface, the magnetic toner has a coverage ratio A and a coverage ratio B/coverage ratio A in prescribed ranges, wherein the magnetic toner has a dielectric constant ε' and a dielectric loss tangent in prescribed ranges.
摘要翻译：磁性调色剂含有含有粘合剂树脂和磁性体的磁性调色剂颗粒和磁性调色剂颗粒表面上存在的无机细颗粒，其中磁性调色剂颗粒表面上存在的无机细颗粒含有金属氧化物微粒，含有二氧化硅微粒的金属氧化物微粒，任选地含有二氧化钛微粒和氧化铝微粒，二氧化硅微粒的含量相对于二氧化硅微粒的总质量为85质量％以上，二氧化钛微细颗粒和氧化铝细颗粒，当覆盖率A（％）是无机细颗粒的磁性调色剂颗粒的表面的覆盖率和覆盖率B（％）时，磁性调色剂颗粒表面的覆盖率通过固定在磁性调色剂颗粒表面上的无机细颗粒，磁性调色剂具有覆盖率A和覆盖率B / c 在规定范围内的超载比A，其中磁性调色剂具有规定范围内的介电常数ε和介电损耗角正切。

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