TONER

To provide a toner which is superior in terms of color reproducibility and chroma of a fixed image and coloring power.SOLUTION: A toner comprises toner particles containing a binder resin and a colorant, and inorganic fine particles, where the binder resin is a polyester resin, the colorant contains...

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Bibliographic Details
Main Authors KOMATSU NOZOMI, HASHIMOTO TAKESHI, HAMA MASAYUKI, SHIINO MOE, SUGANO ICHIRO, FUJIKAWA HIROYUKI, ONOZAKI YUTO
Format Patent
LanguageEnglish
Japanese
Published 06.05.2021
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:To provide a toner which is superior in terms of color reproducibility and chroma of a fixed image and coloring power.SOLUTION: A toner comprises toner particles containing a binder resin and a colorant, and inorganic fine particles, where the binder resin is a polyester resin, the colorant contains a compound (1) shown below, and the toner particles contain the calcium element and magnesium element. The toner satisfies the following expressions: A+B≤300.0, 4.0≤A≤180.0, 4.0≤B≤180.0, where A (ppm) represents content of the calcium element and B (ppm) represents content of the magnesium element with respect to a mass of the compound (1) in a toner particle.SELECTED DRAWING: None 【課題】定着画像の色再現性、彩度、着色力の優れたトナーを提供する。【解決手段】結着樹脂、着色剤を含有するトナー粒子と無機微粒子とを有するトナーであって、結着樹脂はポリエステル樹脂であり、着色剤は下記化合物（１）を含有し、トナー粒子は、カルシウム元素とマグネシウム元素を含有し、トナー粒子中の化合物（１）の質量を基準とし、カルシウム元素の含有量をＡ（ｐｐｍ）、マグネシウム元素の含有量をＢ（ｐｐｍ）とするとき、以下の式を満たすことを特徴とする。Ａ＋Ｂ≦３００．０；４．０≦Ａ≦１８０．０；４．０≦Ｂ≦１８０．０【選択図】なし
Bibliography:Application Number: JP20190198516