TONER

To provide a toner that exhibits excellent transfer properties and has satisfactory dot reproducibility.SOLUTION: A toner has toner particles and silica fine particles A. The toner particles contain a binder resin, and the silica fine particles A are present attached or adhered to the surface of eac...

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Hauptverfasser:	KOBORI NAOKUNI, TSUJIMOTO DAISUKE, SAKAMOTO KAZUYUKI, HOSOI KAZUTO, MATSUO RYUICHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS THEREOF ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY INORGANIC CHEMISTRY MAGNETOGRAPHY METALLURGY NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS PHOTOGRAPHY PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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creator	KOBORI NAOKUNI TSUJIMOTO DAISUKE SAKAMOTO KAZUYUKI HOSOI KAZUTO MATSUO RYUICHIRO
description	To provide a toner that exhibits excellent transfer properties and has satisfactory dot reproducibility.SOLUTION: A toner has toner particles and silica fine particles A. The toner particles contain a binder resin, and the silica fine particles A are present attached or adhered to the surface of each of the toner particles. The silica fine particles A contain iron atoms at a concentration of 20 ppm or more and 2000 ppm or less. Primary particles of the silica fine particles A have a number average particle diameter of 80 nm or more and 200 nm or less. The coverage of each of the toner particles by the silica fine particles A is 31.0% or more and 70.0% or less.SELECTED DRAWING: None 【課題】優れた転写性を示し、ドット再現性が良好なトナーを提供する。【解決手段】トナー粒子と、シリカ微粒子Ａとを有するトナーであって、前記トナー粒子は結着樹脂を含有し、前記シリカ微粒子Ａは前記トナー粒子の表面に付着または固着して存在し、前記シリカ微粒子Ａは、鉄原子を２０ｐｐｍ以上２０００ｐｐｍ以下の濃度で含有し、前記シリカ微粒子Ａの一次粒子は、８０ｎｍ以上２００ｎｍ以下の個数平均粒径を有し、前記トナー粒子の前記シリカ微粒子Ａによる被覆率は、３１．０％以上７０．０％以下であることを特徴とするトナー。【選択図】なし
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The toner particles contain a binder resin, and the silica fine particles A are present attached or adhered to the surface of each of the toner particles. The silica fine particles A contain iron atoms at a concentration of 20 ppm or more and 2000 ppm or less. Primary particles of the silica fine particles A have a number average particle diameter of 80 nm or more and 200 nm or less. 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The toner particles contain a binder resin, and the silica fine particles A are present attached or adhered to the surface of each of the toner particles. The silica fine particles A contain iron atoms at a concentration of 20 ppm or more and 2000 ppm or less. Primary particles of the silica fine particles A have a number average particle diameter of 80 nm or more and 200 nm or less. The coverage of each of the toner particles by the silica fine particles A is 31.0% or more and 70.0% or less.SELECTED DRAWING: None 【課題】優れた転写性を示し、ドット再現性が良好なトナーを提供する。【解決手段】トナー粒子と、シリカ微粒子Ａとを有するトナーであって、前記トナー粒子は結着樹脂を含有し、前記シリカ微粒子Ａは前記トナー粒子の表面に付着または固着して存在し、前記シリカ微粒子Ａは、鉄原子を２０ｐｐｍ以上２０００ｐｐｍ以下の濃度で含有し、前記シリカ微粒子Ａの一次粒子は、８０ｎｍ以上２００ｎｍ以下の個数平均粒径を有し、前記トナー粒子の前記シリカ微粒子Ａによる被覆率は、３１．０％以上７０．０％以下であることを特徴とするトナー。【選択図】なし</abstract><oa>free_for_read</oa></addata></record>
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subjects	CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS THEREOF ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY INORGANIC CHEMISTRY MAGNETOGRAPHY METALLURGY NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS PHOTOGRAPHY PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
title	TONER
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