Magenta color toner for developing latent electrostatic images in color electrophotography
US4933250A · kind A · utility
28Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Sep 1, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0914
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A magenta toner is disclosed, which comprises a coloring composition comprising a thioindigo pigment, and a xanthene dye having general formula (I) or a laked xanthene dye thereof, and a binder resin: ##STR1## wherein R.sup.1, R.sup.2, R.sup.5, R.sup.6, and R.sup.7 each represent hydrogen or a lower alkyl group; R.sup.3 and R.sup.4 each represent a lower alkyl group; and A.sup.- represents halogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.