Photographic element for tanning development and method for obtaining colored relief image
US4369245A · kind A · utility
9Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1981 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Sep 8, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic element for tanning development which comprises a support, a layer of silver halide emulsion in non-hardened gelatin including a tanning developer dispersed therein, and over said emulsion layer, a layer of non-hardened gelatin comprising at least one colored pigment dispersed therein, characterized by the silver in said silver halide emulsion layer being present in a quantity of less than 0.6 g/m.sup.2 with a silver/gelatin ratio of less than 0.4. A method for obtaining a colored relief image in such an element is shown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.