TONER

A toner is provided that comprises a toner particle comprising a binder resin and a wax, and an inorganic fine particle on a surface of the toner particle, wherein the binder resin comprises a resin A; the toner satisfies 2.50≤SPa−SPw≤4.50, where SPa (cal/cm3)0.5 is the SP value of the resin A, and...

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Bibliographic Details
Main Authors Adachi, Keisuke, Ohmori, Atsuhiko, Toyoda, Takayuki, Sugita, Tomoko
Format Patent
LanguageEnglish
Published 24.11.2022
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A toner is provided that comprises a toner particle comprising a binder resin and a wax, and an inorganic fine particle on a surface of the toner particle, wherein the binder resin comprises a resin A; the toner satisfies 2.50≤SPa−SPw≤4.50, where SPa (cal/cm3)0.5 is the SP value of the resin A, and SPw (cal/cm3)0.5 is the SP value of the wax; the inorganic fine particle comprises a silica fine particle whose surface has been treated with a silicone oil; in a 29Si solid-state NMR measurement of the silica fine particle, 30≤B≤60 and 4.0≤A/B≤6.0 are satisfied, taking A as an integration value of a D unit obtained by taking an integration value of a Q unit in a CP/MAS measurement as 100, and taking B as an integration value of a D unit obtained by taking an integration value of a Q unit in a DD/MAS measurement as 100.
Bibliography:Application Number: US202217660138