Process of forming color photographic images
US4021238A · kind A · utility
2Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1975 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Jan 22, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for forming color photographic images which comprises color-developing at temperatures higher than about 30.degree. C a multilayer color photographic material comprising a support having thereon at least two photosensitive emulsion layers each containing a coupler which can form a non-diffusible colored dye on coupling with the oxidation product of an aromatic primary amino color developing agent and at least one fogged emulsion layer containing a coupler which can form a non-diffusible colored dye on coupling with the oxidation product of an aromatic primary amino color developing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.