GB1407436A - Process for preparing fine-grain silver halide emulsions - Google Patents
Process for preparing fine-grain silver halide emulsionsInfo
- Publication number
- GB1407436A GB1407436A GB5262872A GB5262872A GB1407436A GB 1407436 A GB1407436 A GB 1407436A GB 5262872 A GB5262872 A GB 5262872A GB 5262872 A GB5262872 A GB 5262872A GB 1407436 A GB1407436 A GB 1407436A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver halide
- halide emulsions
- grain silver
- preparing fine
- 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
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
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
- G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium
-
- 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
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/08—Sensitivity-increasing substances
- G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Colloid Chemistry (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
1407436 Photographic silver halide emulsions AGFA-GEVAERT 14 Nov 1972 [9 Dec 1971] 52628/72 Heading G2C Photographic silver halide Lippmann emulsions of grain size less than 100nm are made by precipitating the silver halide in an aqueous hydrophilic colloid medium in the presence of a compound of the formula:- and/or the isomeric compound of the formula:-
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2161044A DE2161044A1 (en) | 1971-12-09 | 1971-12-09 | PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC FINE-GRAIN SILVER HALOGENIDE EMULSIONS |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1407436A true GB1407436A (en) | 1975-09-24 |
Family
ID=5827476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5262872A Expired GB1407436A (en) | 1971-12-09 | 1972-11-14 | Process for preparing fine-grain silver halide emulsions |
Country Status (4)
Country | Link |
---|---|
US (1) | US3847617A (en) |
BE (1) | BE792093A (en) |
DE (1) | DE2161044A1 (en) |
GB (1) | GB1407436A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1470369A (en) * | 1973-06-22 | 1977-04-14 | Agfa Gevaert | Photographic complex diffusion transfer process |
DE3019733A1 (en) * | 1980-05-23 | 1981-12-03 | Agfa-Gevaert Ag, 5090 Leverkusen | METHOD FOR PRODUCING SILVER HALOGENID EMULSIONS, PHOTOGRAPHIC MATERIALS AND METHOD FOR PRODUCING PHOTOGRAPHIC IMAGES |
US4814263A (en) * | 1987-07-21 | 1989-03-21 | Minnesota Mining And Manufacturing Company | Direct-positive silver halide emulsion |
DE19933258A1 (en) * | 1999-07-15 | 2001-01-18 | Agfa Gevaert Ag | Preparation of silver halide emulsions |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2453087A (en) * | 1946-11-07 | 1948-11-02 | Gen Aniline & Film Corp | Photographic developers containing tetrazolyl disulfides as antifogging agents |
BE758103A (en) * | 1969-10-29 | 1971-04-28 | Agfa Gevaert Nv | FINE-GRAINY PHOTOGRAPHIC SILVER HALOGENIDE EMULSIONS |
BE758242A (en) * | 1969-11-06 | 1971-04-30 | Agfa Gevaert Nv | PHOTOGRAPHIC FINE GRAINY SILVER HALOGENIDE EMULSIONS |
-
0
- BE BE792093D patent/BE792093A/en unknown
-
1971
- 1971-12-09 DE DE2161044A patent/DE2161044A1/en active Pending
-
1972
- 1972-11-14 GB GB5262872A patent/GB1407436A/en not_active Expired
- 1972-12-01 US US00311161A patent/US3847617A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3847617A (en) | 1974-11-12 |
DE2161044A1 (en) | 1973-06-14 |
BE792093A (en) | 1973-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |