GB1362032A - Method of making photographic silver halide emulsions - Google Patents
Method of making photographic silver halide emulsionsInfo
- Publication number
- GB1362032A GB1362032A GB5239771A GB5239771A GB1362032A GB 1362032 A GB1362032 A GB 1362032A GB 5239771 A GB5239771 A GB 5239771A GB 5239771 A GB5239771 A GB 5239771A GB 1362032 A GB1362032 A GB 1362032A
- Authority
- GB
- United Kingdom
- Prior art keywords
- precipitation
- silver halide
- mole per
- silver
- halide emulsions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910052709 silver Inorganic materials 0.000 title abstract 4
- 239000004332 silver Substances 0.000 title abstract 4
- 239000000839 emulsion Substances 0.000 title abstract 3
- -1 silver halide Chemical class 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000001556 precipitation Methods 0.000 abstract 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 2
- HOLVRJRSWZOAJU-UHFFFAOYSA-N [Ag].ICl Chemical compound [Ag].ICl HOLVRJRSWZOAJU-UHFFFAOYSA-N 0.000 abstract 2
- 239000011230 binding agent Substances 0.000 abstract 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 abstract 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
- G03C2001/03517—Chloride content
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
- G03C2005/168—X-ray material or process
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1362032 Silver halide emulsions EASTMAN KODAK CO 11 Nov 1971 [13 Nov 1970] 52397/71 Heading G2C A silver chloroidodide emulsion containing more than 50 mole per cent of chloride, 0.5-5 mole per cent of iodide and 0-10 mole per cent of bromide is produced by precipitation of the silver chloroiodide in a medium which has a pH of 5-9 and a pAg of at least 7.8 and to which is added ammonium chloride, ammonium nitrate or magnesium chloride (as weak silver halide solvent) before, during or immediately after precipitation in an amount of 0.4-1.8 mole per mole of silver chloroiodide formed. The precipitation may be effected at 30-75‹ C. Photographic binders and supports are specified. The binder may be added after precipitation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7040564A FR2114030A5 (en) | 1970-11-13 | 1970-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1362032A true GB1362032A (en) | 1974-07-30 |
Family
ID=9064072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5239771A Expired GB1362032A (en) | 1970-11-13 | 1971-11-11 | Method of making photographic silver halide emulsions |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3784381A (en) |
| BE (1) | BE775307A (en) |
| BR (1) | BR7107499D0 (en) |
| FR (1) | FR2114030A5 (en) |
| GB (1) | GB1362032A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1470369A (en) * | 1973-06-22 | 1977-04-14 | Agfa Gevaert | Photographic complex diffusion transfer process |
| IT1035302B (en) * | 1974-04-15 | 1979-10-20 | Polaroid Corp | PHOTOGRAPHIC FILM FOR DIFFUSION TRANSPORT PROCESSES |
| US4078937A (en) * | 1974-11-26 | 1978-03-14 | Fuji Photo Film Co., Ltd. | Process for sensitizing a fine grain silver halide photographic emulsion |
| GB1507989A (en) * | 1974-12-19 | 1978-04-19 | Ciba Geigy Ag | Photographic emulsions |
| CA1071970A (en) * | 1975-07-15 | 1980-02-19 | Agfa-Gevaert Aktiengesellschaft | Process for the preparation of silver halide emulsions |
| GB1565502A (en) * | 1975-09-10 | 1980-04-23 | Minnesota Mining & Mfg | Photographic materials |
| US4232116A (en) * | 1979-01-31 | 1980-11-04 | Minnesota Mining And Manufacturing Company | Light-handleable photographic materials |
| US4399215A (en) * | 1981-11-12 | 1983-08-16 | Eastman Kodak Company | Double-jet precipitation processes and products thereof |
| JPS58106532A (en) * | 1981-12-19 | 1983-06-24 | Konishiroku Photo Ind Co Ltd | Silver halide emulsion and its preparation |
| JPS58107530A (en) * | 1981-12-21 | 1983-06-27 | Konishiroku Photo Ind Co Ltd | Silver halide emulsion and its preparation |
| US4661438A (en) | 1985-04-04 | 1987-04-28 | Eastman Kodak Company | Quaternized tellurium salt fog inhibiting agents for silver halide photography |
| US5750327A (en) * | 1996-06-20 | 1998-05-12 | Eastman Kodak Company | Mixed ripeners for silver halide emulsion formation |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2401051A (en) * | 1939-09-26 | 1946-05-28 | Photo Positive Corp | Photographic emulsions and methods |
| BE484329A (en) * | 1947-11-19 | |||
| US3050391A (en) * | 1957-12-30 | 1962-08-21 | Gen Aniline & Film Corp | Photographic film with fine grain silver chloride underlayer |
| US3033682A (en) * | 1959-05-22 | 1962-05-08 | Du Pont | Radiation-sensitive emulsions, elements, and processes for making same |
| FR1364722A (en) * | 1963-05-15 | 1964-06-26 | Kodak Pathe | New process and device for preparing photosensitive emulsions |
| US3415650A (en) * | 1964-11-25 | 1968-12-10 | Eastman Kodak Co | Method of making fine, uniform silver halide grains |
| US3598593A (en) * | 1965-12-21 | 1971-08-10 | Gaf Corp | Photographic emulsions and method of making |
| US3600167A (en) * | 1968-11-04 | 1971-08-17 | Eastman Kodak Co | Silver halide layered photographic element of different light sensitive layers |
| US3697271A (en) * | 1971-04-16 | 1972-10-10 | Polaroid Corp | Novel photographic products and processes for color diffusion transfer utilizing silver halide emulsions with specific proportions of average halide grain size |
-
1970
- 1970-11-13 FR FR7040564A patent/FR2114030A5/fr not_active Expired
-
1971
- 1971-11-03 US US00195465A patent/US3784381A/en not_active Expired - Lifetime
- 1971-11-10 BR BR7499/71A patent/BR7107499D0/en unknown
- 1971-11-11 GB GB5239771A patent/GB1362032A/en not_active Expired
- 1971-11-12 BE BE775307A patent/BE775307A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2114030A5 (en) | 1972-06-30 |
| BE775307A (en) | 1972-05-12 |
| BR7107499D0 (en) | 1973-05-10 |
| US3784381A (en) | 1974-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |