GB1386313A - Dry process of producing positive images - Google Patents
Dry process of producing positive imagesInfo
- Publication number
- GB1386313A GB1386313A GB5161972A GB5161972A GB1386313A GB 1386313 A GB1386313 A GB 1386313A GB 5161972 A GB5161972 A GB 5161972A GB 5161972 A GB5161972 A GB 5161972A GB 1386313 A GB1386313 A GB 1386313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mercapto
- optionally substituted
- image
- compound
- methylbenzimidazole
- 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
- G03C1/49—Print-out and photodevelopable emulsions
-
- 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
- G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
1386313 Forming positive images by photodevelopment FUJI PHOTO FILM CO Ltd 8 Nov 1972 [9 Nov 1971] 51619/72 Heading G2C A positive image is formed by imagewise exposing to an intensity of greater than 15,000 Lux for less than 10<SP>-2</SP> second to form a latent image, a light-developable silver halide lightsensitive material having a layer of a binder in which are disposed silver halide grains having occluded therein at least one bismuth compound which supplies bismuth ions and which layer also contains at least one compound of the formula:- wherein X is O, S, Se, NH or NR where R is optionally substituted 1-12C alkyl or optionally substituted aryl; and D is optionally substituted #-phenylene, optionally substituted 1, 2- naphthylene or optionally substituted 2, 3- naphthylene and overall exposing the material to form a visible image. The bismuth compound may be bismuth nitrate, sulphate, oxide, chloride, bromide, iodide, lactate, oleate, oxalate or sodium triglycollamate (nitrilotrieacetate). The compound may be 2-mercapto-benzothiazole, benzimidazole, benzoxazole or benzoselenazole, 2-mercapto-4- methylbenzimidazole, 2-mercapto-1', 2 -naphthoimidazole, 2-mercapto-5-methylbenzimidazole, 2-mercapto-1-methylbenzimidazole, 5-chloro-2- mercaptobenzimidazole, 5-carboxy-2-mercaptobenzimidazole, 2-mercapto-5-nitrobenzimidazole, 6-(fluoro or iodo)-2-mercaptobenzothiazole, 6- ethoxy-2-mercaptobenzothiazole, 2-mercapto-4, 6-dimethyl-benzoxazole or 2-mercapto-5-sulphobenzimidazole. Overall exposure may be effected using daylight, tungsten, fluorescent, mercury arc or xenon lamp illumination. After imagewise exposure and before overall exposure the material may be heated at at least 70‹C for at least 1 second (see Ex 6). The image produced in Ex 1 is a positive blue image.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8926671A JPS5517374B2 (en) | 1971-11-09 | 1971-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1386313A true GB1386313A (en) | 1975-03-05 |
Family
ID=13965937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5161972A Expired GB1386313A (en) | 1971-11-09 | 1972-11-08 | Dry process of producing positive images |
Country Status (4)
Country | Link |
---|---|
US (1) | US3852071A (en) |
JP (1) | JPS5517374B2 (en) |
DE (1) | DE2254872C2 (en) |
GB (1) | GB1386313A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5536979B2 (en) * | 1972-03-22 | 1980-09-25 | ||
JPS51127720A (en) * | 1975-04-30 | 1976-11-08 | Konishiroku Photo Ind Co Ltd | Method for sensitizing silver halide photographic light sensitive mate rials |
JPS60152860U (en) * | 1984-03-21 | 1985-10-11 | アイシン精機株式会社 | automatic transmission structure |
JPS63121416U (en) * | 1987-01-30 | 1988-08-05 | ||
JPH065437A (en) * | 1992-06-19 | 1994-01-14 | Nippon Makisen Kogyo Kk | Insulating structure between windings of toroidal transformer |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE620828A (en) * | 1961-08-01 | |||
GB1059782A (en) * | 1962-09-11 | 1967-02-22 | Eastman Kodak Co | Photographic silver halide emulsions and sensitive materials prepared therefrom |
FR1456581A (en) * | 1965-07-13 | 1966-10-28 | Kodak Pathe | New radiation sensitive product |
US3418122A (en) * | 1965-08-23 | 1968-12-24 | Eastman Kodak Co | Photodevelopment of silver halide print-out material |
US3531291A (en) * | 1967-04-07 | 1970-09-29 | Eastman Kodak Co | Silver halide emulsions capable of being chemically or photo developed |
US3547647A (en) * | 1967-10-02 | 1970-12-15 | Eastman Kodak Co | Photographic systems comprising silver halide particles with occluded metal ions therein,a halogen acceptor,and an organic aldehyde |
US3615511A (en) * | 1968-05-22 | 1971-10-26 | Eastman Kodak Co | Surface developer with heterocyclic mercaptan for use on internal image emulsion |
BE756627A (en) * | 1969-09-26 | 1971-03-01 | Du Pont | DIRECT POSITIVE EMULSIONS CONTAINING AMINO-BORANS AND BISMUTH DESALTS |
UST881009I4 (en) * | 1970-05-14 | 1970-12-01 | Defensive publication | |
UST882022I4 (en) * | 1970-06-18 | 1971-01-26 | Defensive publication | |
US3690891A (en) * | 1970-07-20 | 1972-09-12 | Eastman Kodak Co | Infrared-sensitized silver halide systems |
-
1971
- 1971-11-09 JP JP8926671A patent/JPS5517374B2/ja not_active Expired
-
1972
- 1972-11-08 GB GB5161972A patent/GB1386313A/en not_active Expired
- 1972-11-08 US US00304879A patent/US3852071A/en not_active Expired - Lifetime
- 1972-11-09 DE DE2254872A patent/DE2254872C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS4857633A (en) | 1973-08-13 |
JPS5517374B2 (en) | 1980-05-10 |
US3852071A (en) | 1974-12-03 |
DE2254872C2 (en) | 1982-12-09 |
DE2254872A1 (en) | 1973-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |