Method for preparing a photographic emulsion, and apparatus for implementing the method
US5723279A · kind A · utility
2Cited by
13References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Nov 21, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/015
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention concerns a method and a device for preparing a photographic emulsion. The device according to the invention comprises a plurality of external circulation loops disposed in parallel and in which the content of a vessel containing at least a stirred gelatin solution is circulated, the loops having an identical configuration, means being provided for adding in an identical manner, to each of the loops, reagents required for the formation and/or growth of silver halide grains, the output of the circulation loops being recycled continuously in the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.