Decolorizable toner and a decolorizable toner production process
US5607803A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 9, 1994 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Dec 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention discloses a decolorizable toner wherein a cationic dye having absorbance from the visible region to the near infrared region is contained in a binder resin together with a decolorant and anti-discoloration agent. In addition, the present invention also discloses a production process of a decolorizable toner that contains a step wherein cationic dye having absorbance from the visible region to the near infrared region, decolorant, binder resin and anti-discoloration agent are uniformly dissolved or dispersed in an organic solvent to prepare a mixed solution; a step wherein the solvent is removed from this mixed solution followed by drying; and, a step wherein the resulting dried mixture is pulverized to produce a toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.