Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement
US4030920A · kind A · utility
4Cited by
45References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1976 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Apr 12, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Improved dye densities are obtained in color image transfer assemblages employing internal image emulsions, ballasted redox dye releasers and an alkaline processing composition containing a saturated, aliphatic or alicyclic glycol having from 3 to 10 carbon atoms or a saturated, aliphatic or alicyclic amino alcohol having from 2 to 10 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.