SILICA PARTICLES, ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING DEVICE, AND IMAGE FORMING METHOD

To provide silica particles which contain a nitrogen element-containing compound containing a molybdenum element, and which suppress change in the charge amount over time.SOLUTION: A silica particle is provided, comprising a silica base particle, a coating structure composed of a reaction product of...

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Bibliographic Details
Main Authors TAKEUCHI SAKAE, ZENITANI YUKA, MOCHIDA MAI, SUGAHARA HAJIME, SEKI MIEKO, NOHARA KOTA
Format Patent
LanguageEnglish
Japanese
Published 02.04.2024
Subjects
CHEMISTRY
CINEMATOGRAPHY
COMPOUNDS THEREOF
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
INORGANIC CHEMISTRY
MAGNETOGRAPHY
METALLURGY
NON-METALLIC ELEMENTS
PHOTOGRAPHY
PHYSICS
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Summary:To provide silica particles which contain a nitrogen element-containing compound containing a molybdenum element, and which suppress change in the charge amount over time.SOLUTION: A silica particle is provided, comprising a silica base particle, a coating structure composed of a reaction product of a trifunctional silane compound and provided to cover the silica base particle, and a nitrogen element-containing compound that contains a molybdenum element and is attached to the coating structure. On a molybdenum element map generated by a SEM-EDX, the total area of regions with clusters having major axes of 500 nm or greater is 5% or less of the total area of the molybdenum element.SELECTED DRAWING: None 【課題】モリブデン元素を含有する窒素元素含有化合物を含むシリカ粒子であって、帯電量が経時変化しにくいシリカ粒子を提供すること。【解決手段】シリカ粒子は、シリカ母粒子と、シリカ母粒子を被覆した、３官能シラン化合物の反応生成物からなる被覆構造と、被覆構造に付着した、モリブデン元素を含有する窒素元素含有化合物と、を有し、ＳＥＭ－ＥＤＸにより作成したモリブデン元素マップにおいて、モリブデン元素の総面積に占める、長径５００ｎｍ以上の塊を成している領域の総面積が５％以下である。【選択図】なし
Bibliography:Application Number: JP20220150742