FIELD: physics, photo.
SUBSTANCE: invention relates to photography, particularly, to synthesis of photographical halide-silver emulsions by controlled two-jet crystallisation. Industrial synthesis in 500-2000 l units comprises unit loading with initial chemicals, nucleation, Ostwald ageing and build-up of microcrystal shells. Proposed process allows making of photo emulsions from both cubic and plate-like crystals with improved granulometric characteristics, particularly, mean equivalent diameter makes 0.5-1.2 mcm; size variation factor makes 11-15%, crystallographic homogeneity factor makes 97-99%.
EFFECT: higher resolution capacity of photographic films.
2 cl, 4 dwg, 1 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PRODUCTION METHOD FOR PHOTOGRAPHIC EMULSION BASED ON SILVER-HALIDE LAMINATE MICROCRYSTALS WITH EPITAXIAL NANOSTRUCTURES | 2007 |
|
RU2360271C2 |
| METHOD OF PREPARING SILVER-HALIDE PHOTOGRAPHIC EMULSION | 1994 |
|
RU2080644C1 |
| PROCESS OF PRODUCTION OF HALOGEN-AND-SILVER PHOTOGRAPHIC EMULSION WITH MICROCRYSTALS | 1997 |
|
RU2115944C1 |
| METHOD OF MANUFACTURING SILVER BROMIDE/IODIDE PHOTOGRAPHIC EMULSION CONTAINING T CRYSTALS | 1984 |
|
RU2091851C1 |
| METHOD OF PREPARING SILVER HALIDE PHOTOGRAPHIC EMULSION | 1995 |
|
RU2110083C1 |
| SILVER HALIDE PHOTOGRAPHIC EMULSION WITH MIXED MICROCRYSTALS | 1997 |
|
RU2129723C1 |
| APPARATUS FOR SYNTHESIS OF PHOTOGRAPHIC EMULSIONS | 2012 |
|
RU2549863C2 |
| PROCESS OF MANUFACTURE OF BROMINE-IODINE-SILVER PHOTOGRAPHIC EMULSION AND PHOTOGRAPHIC MATERIAL BASED ON IT | 2002 |
|
RU2215316C1 |
| METHOD OF PREPARING SILVER BROMIDE OR SILVER BROMIDE/IODIDE PHOTOGRAPHIC EMULSION | 1985 |
|
SU1319722A1 |
| SILVER HALIDE PHOTOGRAPHIC MATERIAL | 1997 |
|
RU2129724C1 |
