Production of toner
US5418109A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Apr 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0808
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a preparation method of a toner comprising steps of: PA1 (a) preparing a dispersion mixture containing colored polymer particles, a charge controlling agent and organic resin fine particles, in an aqueous medium; PA1 (b) allowing said charge controlling agent and organic resin fine particles to be adhered on the surface of said colored polymer particles by salting-out; PA1 (c) drying said colored polymer particles having thereon said charge controlling agent and organic resin fine particles; and PA1 (d) applying mechanical impact to said colored polymer particles to effect a conversion of said organic resin fine particles into a film on the surfaces of said colored polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.