Toner preparation processes
US8080360B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2005 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | May 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of making toner particles, includes: mixing a latex emulsion, a colorant emulsion, an optional was emulsion, and optional additives in a first reactor to form a slurry; discharging the slurry from the first reactor to a second reactor through a homogenizer; heating the slurry in the second reactor to form aggregated particles in said slurry; discharging the aggregated particles and slurry from the second reactor to a third reactor; heating the aggregated particles and slurry in the third reactor to coalesce the aggregated particles into toner particles; discharging the toner particles and slurry from the third reactor to a fourth reactor; cooling the toner particles; optionally classifying said toner particles to remove coarse particles; and optionally washing and drying said toner particles, wherein the first reactor, second reactor, third reactor, and fourth reactor are at least two different reactors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.