Toner processes utilizing washing aid
US8802344B2 · kind B2 · utility
0Cited by
20References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2010 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08797
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for making toner particles is provided. In embodiments, a suitable process includes adding a washing aid agent to toner particles at the time of washing the toner particles prior to their drying and recover. The washing aid agent assist in the removal of ionic species, including surfactants and ions that are part of the emulsion aggregation process, from the resulting toner particles. Utilization of the washing aid agent produces toner particles having improved charging characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.