Process for producing toner particles
US7611816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2006 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Sep 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a process for producing toner particles through granulation by a wet process, a process for producing toner particles is provided that enables reduction of water content in wet toner particle cakes obtained by separating toner particles from a toner particle dispersion in a good efficiency, followed by washing, and enables efficient wash-away of impurities remaining on the toner particle surfaces so as to promise superior image characteristics. The toner particles are produced through a filtering step in which a slurry which contains toner particles is subjected to solid-liquid separation by means of a belt filter having a pressing aeration means which carries out aeration with pressing, to form wet toner particle cakes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.