Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge
US9880480B2 · kind B2 · utility
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1References
18Claims
0Family size
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Key dates
| Filing date | Jul 11, 2016 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Jul 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic charge image developing toner includes toner particles containing a binder resin and a release agent and an external additive containing fatty acid metal salt particles and abrasive particles, wherein a ratio (B/A) of an isolation amount B of the abrasive particles isolated from the toner particles after an ultrasonic isolation treatment to an isolation amount A of the fatty acid metal salt particles isolated from the toner particles after the ultrasonic isolation treatment is from 0.3 to 2.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.