Toner and image forming method
US6667140B2 · kind B2 · utility
14Cited by
6References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/091
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color toner (magenta toner) showing not only color image forming performances such as color reproducibility, gradation characteristic, light-fastness, full-color image forming characteristic and a chargeability but also excellent in matching with various members of an electrophotographic apparatus is produced from a binder resin, a wax component and a specific monoazo pigment composition. The monoazo pigment composition is characterized by a principal monoazo pigment of a specific structure and specified amounts of a &bgr;-naphthol derivative and an aromatic amine, usable as materials for synthesizing the monoazo pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.