Process and composition for fixing black-and-white silver halide photographic materials
US5298373A · kind A · utility
12Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1991 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Dec 6, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Silver halide black-and-white photosensitive material is processed with a fixer which contains 0.5 to 2.0 mol/liter of a thiosulfate and 0.003 to 0.3 mol/liter of a meso-ionic compound, the moles of the meso-ionic compound divided by the moles of the thiosulfate being from 0.003 to 0.2. The fixer accelerates fixing speed, enabling rapid processing of photographic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.