TONER

A toner including a polyester resin-including toner particle and a silica fine particle, wherein fragment ions corresponding to a D unit structure are observed in TOF-SIMS measurement of the silica fine particle, where the silica fine particle is dispersed in a specific mixed liquid and a titration...

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Bibliographic Details
Main Authors SANO, TOMOHISA, HIRAMATSU, TOHRU, SATO, KAZUYUKI, KAGAWA, HIROKI, SHIBAHARA, SHOHEI
Format Patent
LanguageEnglish
Published 21.12.2023
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A toner including a polyester resin-including toner particle and a silica fine particle, wherein fragment ions corresponding to a D unit structure are observed in TOF-SIMS measurement of the silica fine particle, where the silica fine particle is dispersed in a specific mixed liquid and a titration operation using sodium hydroxide is performed, the titer is within a specific range, where an area of a peak having a peak top within the range from −25 to −15 ppm in 29Si-NMR measurement of the silica fine particle is denoted by D and an area of a peak having a peak top within the range from more than −19 ppm to −17 ppm or less is denoted by D1, the specific surface area of the silica fine particle, D and D1 satisfy specific relationships, and the polyester resin is present on the surface of the toner particle.
Bibliography:Application Number: US202318307832