Process for producing toner, and apparatus for modifying surfaces of toner particles
US7358024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Mar 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a toner production process having at least a kneading step, a pulverization step and the step of simultaneously carrying out a surface modification step and a classification step to obtain toner particles, the surface modification and the classification are simultaneously carried out using a batch-wise surface modifying apparatus having at least a cylindrical main-body casing, a classifying rotor, a surface modifying means having a dispersing rotor and a liner. The positional relationship between the dispersing rotor and the liner is set in an appropriate specific state so that toner particles having a sharp particle size distribution with less fine powder and having a high sphericity can be obtained in a good efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.