GB1151363A - A Method of Producing Photographic Images - Google Patents
A Method of Producing Photographic ImagesInfo
- Publication number
- GB1151363A GB1151363A GB1931166A GB1931166A GB1151363A GB 1151363 A GB1151363 A GB 1151363A GB 1931166 A GB1931166 A GB 1931166A GB 1931166 A GB1931166 A GB 1931166A GB 1151363 A GB1151363 A GB 1151363A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- compound
- silver halide
- emulsion
- positive
- 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
- G03C1/485—Direct positive emulsions
- G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
Landscapes
- Chemical & Material Sciences (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
1,151,363. Photographic silver halide positive image process. GEVAERT-AGFA N.V. May 2, 1966 [April 30, 1965], No.19311/66. Heading G2C. Positive photographic images are produced by imagewise exposing a photographic element containing a layer of a silver halide emulsion which forms mainly internal latent image, at least one compound which releases iodide ion and/ or at least one which releases bromide ion in an aq. medium being present in the emulsion or another layer of the element and developing in a surface developer while overall exposing to light. The compounds may be iodides and/or bromides of Ca, NH 4 , Li, Mg, K, Na, Ba, Cd and Zn, organic onium (including phosphonium and iodonium) iodides and bromides, and organic compounds with labile iodine and bromine atoms e.g. monoiodo- and monobromoacetic acid and potassium 4-iodobutane sulphonate. The compound may be incorporated into the material by soaking the material in an aq. soln. of the compound, or by adding the compound directly to the binder of any layer. The material may also contain an antifoggant, preferably in greater than fog-inhibiting amounts, in effective contact with silver halide emulsion layer, and those specified include tetrazoline-thiones and 2-mercapto-ethyl-carbanilate. The binder for the emulsion may include polyvinylpyrrolidone. The process may be used in conjunction with colour couplers and developers to give multi-layer positive colour materials.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1931166A GB1151363A (en) | 1965-04-30 | 1965-04-30 | A Method of Producing Photographic Images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1931166A GB1151363A (en) | 1965-04-30 | 1965-04-30 | A Method of Producing Photographic Images |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1151363A true GB1151363A (en) | 1969-05-07 |
Family
ID=10127274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1931166A Expired GB1151363A (en) | 1965-04-30 | 1965-04-30 | A Method of Producing Photographic Images |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1151363A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2211728A1 (en) * | 1971-03-10 | 1972-09-21 | Eastman Kodak Co , Rochester, N Y (V St A ) | Process for making positive photographic images |
FR2172253A1 (en) * | 1972-02-18 | 1973-09-28 | Agfa Gevaert | |
US4268621A (en) * | 1978-07-29 | 1981-05-19 | Konishiroku Photo Industry Co., Ltd. | Direct positive photographic material |
US4279987A (en) * | 1978-11-14 | 1981-07-21 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive, direct positive silver halide photographic material |
EP0204530A2 (en) | 1985-05-31 | 1986-12-10 | Konica Corporation | Method for forming direct positive color image |
US4801520A (en) * | 1986-07-18 | 1989-01-31 | Fuji Photo Film Co., Ltd. | Direct positive color light-sensitive material comprising a DIR coupler and a pyrazoloazole coupler, and a process for forming a direct positive image |
EP0318987A1 (en) | 1987-12-02 | 1989-06-07 | Fuji Photo Film Co., Ltd. | Direct positive photographic lightsensitive material |
US4910130A (en) * | 1986-11-25 | 1990-03-20 | Konica Corporation | Direct positive light-sensitive silver halide photographic material |
EP0782042A2 (en) | 1995-12-27 | 1997-07-02 | Fuji Photo Film Co., Ltd. | Hydrazine compound and silver halide photographic photosensitive material comprising the same |
EP0782041A2 (en) | 1995-12-27 | 1997-07-02 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive material |
-
1965
- 1965-04-30 GB GB1931166A patent/GB1151363A/en not_active Expired
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2211728A1 (en) * | 1971-03-10 | 1972-09-21 | Eastman Kodak Co , Rochester, N Y (V St A ) | Process for making positive photographic images |
FR2172253A1 (en) * | 1972-02-18 | 1973-09-28 | Agfa Gevaert | |
US4268621A (en) * | 1978-07-29 | 1981-05-19 | Konishiroku Photo Industry Co., Ltd. | Direct positive photographic material |
US4279987A (en) * | 1978-11-14 | 1981-07-21 | Konishiroku Photo Industry Co., Ltd. | Light-sensitive, direct positive silver halide photographic material |
EP0204530A2 (en) | 1985-05-31 | 1986-12-10 | Konica Corporation | Method for forming direct positive color image |
EP0204530A3 (en) * | 1985-05-31 | 1988-06-01 | Konishiroku Photo Industry Co. Ltd. | Method for forming direct positive color image |
US4898807A (en) * | 1985-05-31 | 1990-02-06 | Konishiroku Photo Industry Co., Ltd. | Method for forming direct positive color image using an N-hydroxy alkyl-substituted-P-phenyldiamine derivative at elevated temperatures for a short period of time |
US4801520A (en) * | 1986-07-18 | 1989-01-31 | Fuji Photo Film Co., Ltd. | Direct positive color light-sensitive material comprising a DIR coupler and a pyrazoloazole coupler, and a process for forming a direct positive image |
US4910130A (en) * | 1986-11-25 | 1990-03-20 | Konica Corporation | Direct positive light-sensitive silver halide photographic material |
EP0318987A1 (en) | 1987-12-02 | 1989-06-07 | Fuji Photo Film Co., Ltd. | Direct positive photographic lightsensitive material |
EP0782042A2 (en) | 1995-12-27 | 1997-07-02 | Fuji Photo Film Co., Ltd. | Hydrazine compound and silver halide photographic photosensitive material comprising the same |
EP0782041A2 (en) | 1995-12-27 | 1997-07-02 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive material |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |