TONER

Provided is a toner comprising a toner particle comprising a binder resin and a. silica fine particle, wherein a total content of a polyvalent metal elements in the toner particle is 0.10 to 2.50 μmol/g, a number-average particle diameter of a primary particle of the silica fine particle is 40 to 50...

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Main Authors TAKAHASHI, TORU, SANO, HITOSHI, KOBORI, TAKAKUNI, MATSUO, RYUICHIRO, KITAMURA, SHIN, MURAYAMA, RYUJI, OGAWA, YOSHIHIRO
Format Patent
LanguageEnglish
Published 25.04.2024
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:Provided is a toner comprising a toner particle comprising a binder resin and a. silica fine particle, wherein a total content of a polyvalent metal elements in the toner particle is 0.10 to 2.50 μmol/g, a number-average particle diameter of a primary particle of the silica fine particle is 40 to 500 nm, and in the DD/MAS measurement of solid 29Si-NMR of the silica fine particle, peak PD1 corresponding to a silicon atom represented by Sia in a structure represented by formula (1) and peak PD2 corresponding to a silicon atom represented by Sib in a structure represented by formula (2) are observed, and when an area of the peak PD1 is defined as SD1 and an area of the peak PD2 is defined as SD2, SD1 and SD2 satisfy: 1.2≤(SD1+SD2)/SD1≤10.0.
Bibliography:Application Number: US202318479680