Electrophotographic yellow toner and process for producing the same
US5225301A · kind A · utility
3Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1991 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Dec 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/081
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic yellow toner comprising binder resins having dispersed therein acetoacetanilide type monoazo pigments in its amorphous phase. The toner is excellent in transparency and spectral reflection characteristics. The toner is prepared by a process comprising a step of subjecting a colorant containing acetoacetanilide monoazo pigments and binder resins to heat treatment at a temperature higher than the softening point of the binder resin by at least 40.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.