Method for manufacturing silver halide emulsion
US4828972A · kind A · utility
10Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for manufacturing a silver halide emulsion comprising the steps of forming silver halide grains in the presence of a hydrophilic colloid, physical ripening, desalting, and chemical ripening, wherein a photographic spectral sensitizing dye is added to the emulsion after adding at least 85% by weight of a soluble silver salt solution but before the desalting step is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.