Inhibitor removing bath for direct positive color photographic development
US4194911A · kind A · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1975 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Jul 17, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/158
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An inhibitor removing bath for effecting color formation in a color positive development process which bath comprises a color accelerating agent, a contrast control agent and a pH control agent. The inhibitor removing bath may further contain in a preferred embodiment a color reversal agent. A complete color photographic development process using this inhibitor removing bath is found to provide color positive transparencies of excellent quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.