White toner for electrostatic image development, electrostatic image developing agent, toner cartridge, process cartridge and image forming apparatus
US8293440B2 · kind B2 · utility
3Cited by
0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0604
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a white toner for electrostatic image development, including a binder resin, a first white pigment and a second white pigment, the specific gravity D1 of the first white pigment satisfies the relationship of about 3.5<D1<about 6.0, and the specific gravity D2 of the second white pigment satisfies the relationship of about 0.3<D2<about 1.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.