Dye image forming process using shifted azo dye developer
US4099972A · kind A · utility
2Cited by
4References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 28, 1976 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Jul 28, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B31/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for forming a dye image on a receiving element by diffusion transfer from a photosensitive element is disclosed wherein the exposed photosensitive element is processed with an alkaline solution in the presence of a particular dye developer having at least one azo radical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.