Toner for developing latent electrostatic image, method for manufacturing the same, image forming method and image forming apparatus
US8647802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2008 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Dec 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/08755
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a toner manufacturing method including: continuously mixing an oil phase with an aqueous phase to form an emulsified liquid using an emulsifying mechanism having an emulsified liquid circulation pathway and an emulsifying device equipped with a stirring blade; forming liquid droplets from the emulsified liquid by controlling the equilibrium between atomization and integration of the liquid droplets; and feeding the liquid droplets with stirring to a series of treatments including at least desolvation, filtration, washing and drying; wherein a product T of the solid content concentration (% by mass) of the oil phase and viscosity (mPa·s) measured with a rotating viscometer at 25° C., and 6 rpm satisfies 30,000≦T≦50,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.