Toner for developing electrostatic image
US10203623B2 · kind B2 · utility
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2References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 31, 2017 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Oct 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09725
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
It is an object to suppress yellowing of a binder resin while obtaining an image with a high degree of whiteness and to suppress occurrence of image defects when printing at a high temperature and a high humidity.A toner for developing an electrostatic image, the toner including: white toner base particles containing a binder resin and titanium oxide having an average particle size of from 130 to 600 nm; and an external additive including strontium titanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.