Electrostatic charge image developing toner and method of manufacturing the same
US8642242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09371
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a method of manufacturing toner by which the toner capable of forming high quality images and reproducing high density gradation, which exhibits an excellent high-temperature offsetting property together with excellent low-temperature fixability, and provides appropriate gloss with respect to images to be formed, can be stably prepared; and also provided is the toner. After conducting a step in which particles made of at least a crystalline polyester resin are coagulated to form core coagulated particles, and an unsaturated amorphous polyester resin particle is attached onto the surface of each of the core coagulated particles to form core-shell type coagulated particles, radical polymerization reaction is conducted by acting a radical polymerization initiator on the foregoing core-shell type coagulated particles to conduct a step in which a layer made of a crosslinking amorphous polyester resin is formed on the surface of each of the core coagulated particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.