GB746186A - Improvements in processes of photographic reproduction and in light-sensitive materials therefor - Google Patents
Improvements in processes of photographic reproduction and in light-sensitive materials thereforInfo
- Publication number
- GB746186A GB746186A GB12183/53A GB1218353A GB746186A GB 746186 A GB746186 A GB 746186A GB 12183/53 A GB12183/53 A GB 12183/53A GB 1218353 A GB1218353 A GB 1218353A GB 746186 A GB746186 A GB 746186A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- silver halide
- support
- developer
- sulphite
- 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
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/24—Photosensitive materials characterised by the image-receiving section
- G03C8/26—Image-receiving layers
- G03C8/28—Image-receiving layers containing development nuclei or compounds forming such nuclei
-
- 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
- G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
- G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Color Printing (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
746,186. Photographic light-sensitive material and reproduction transfer therewith. KODAK, Ltd. May 1, 1953 [May 3, 1952], No. 12183/53. Class 98 (2). A support bears a light-sensitive silver halide emulsion layer and an unsensitized unhardened layer of colloidal binder, such as gelatin or polyvinyl alcohol, having dispersed therein an agent for promoting image formation such as nuclei or a chemical precipitant for dissolved silver ions. The silver halide emulsion layer may contain a non-diffusing tanning developing agent, and between such layer and the support there may be present a layer containing a silver halide solvent or such in a form as of barium sulphite which liberates the solvent by action of an alkaline developer. Alternatively a layer of completely exposed silver halide emulsion containing a non-diffusing tanning developing agent, and if desired baryta, and a silver halide solvent, may lie between the silver halide emulsion layer arid the support. In use the material is exposed to an object or image, developed in the presence of silver halide solvent, in the developer or in the material itself, whereby a positive image is formed in the upper, unsensitized layer, and this is pressed onto an absorbent support as of paper to transfer a portion of the unsensitized layer containing the positive image thereto. Successive transfers may be made to obtain duplicate images. If desired the unsensitized colloidal binder layer which eventually contains the positive image may be applied after, instead of before, exposure. In example (1) a gelatino-silver chloride emulsion on paper stock is overcoated with a gelatin layer containing colloidal zinc sulphide, exposed, developed in a metal-quinol developer containing hypo and chlorobenzotriazole for approximately one minute and pressed onto typewriter paper to place a positive imagecontaining layer thereon. Urea is present in the developer to increase softness of the gelatin image. Example 2 uses, similarly, a hardened gelatino-silver chloride emulsion overcoated with a polyvinyl alcohol layer containing cadmium sulphide. In example (3) a paper support being a layer made with barium sulphite instead of the usual baryta or barium sulphate is provided with a gelatino-silver chloride emulsion containing 3: 4-dihydroxy diphenyl as non- diffusing developer and then a gelatin-zinc sulphide layer as of example (1) and is exposed and developed in an alkaline urea solution containing a high proportion of sodium carbonate to release sodium sulphite from the barium sulphite and form a positive image in the zinc sulphide layer, a stratum of which is transferred to a receiving support as in example (1). A fourth example also describes the paperbarium sulphite-emulsion-zinc sulphide layer assembly, with special features whereby successive fractions of the top, zinc sulphide, layer may be transferred to a receiving support with little tendency for all of the layers to transfer at once. Specifications 655,273, 655,275, 725,667, 745,445 and 746,174 are referred to.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US285855A US2725298A (en) | 1952-05-03 | 1952-05-03 | Transfer process of photographic printing |
US430074A US2843485A (en) | 1952-05-03 | 1954-05-17 | Transfer process of photographic printing |
US430424A US2831766A (en) | 1954-05-17 | 1954-05-17 | Gelatin coating compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB746186A true GB746186A (en) | 1956-03-14 |
Family
ID=32329791
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12183/53A Expired GB746186A (en) | 1952-05-03 | 1953-05-01 | Improvements in processes of photographic reproduction and in light-sensitive materials therefor |
GB14211/55A Expired GB804283A (en) | 1952-05-03 | 1955-05-17 | Improved coating compositions comprising gelatin, particularly for photography |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14211/55A Expired GB804283A (en) | 1952-05-03 | 1955-05-17 | Improved coating compositions comprising gelatin, particularly for photography |
Country Status (4)
Country | Link |
---|---|
US (1) | US2843485A (en) |
BE (1) | BE538152A (en) |
FR (1) | FR1132420A (en) |
GB (2) | GB746186A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3511656A (en) * | 1955-03-31 | 1970-05-12 | Dick Co Ab | Single sheet lithographic dtr master and method of use |
US3248219A (en) * | 1960-09-06 | 1966-04-26 | Cons Electrodynamics Corp | Photographic element for dry processing |
NL281743A (en) * | 1961-04-13 | |||
BE638911A (en) * | 1962-10-16 | |||
US3364024A (en) * | 1963-06-24 | 1968-01-16 | Eastman Kodak Co | Photographic process |
GB1053568A (en) * | 1964-08-20 | |||
US3464822A (en) * | 1965-09-13 | 1969-09-02 | Du Pont | Process for making electrically conductive images |
US3547641A (en) * | 1966-06-20 | 1970-12-15 | Du Pont | Planographic offset printing masters |
GB1241661A (en) * | 1967-06-19 | 1971-08-04 | Agfa Gevaert | Method for the preparation of printing plates |
DE1906296C3 (en) * | 1969-02-08 | 1980-05-29 | Agfa-Gevaert Ag, 5090 Leverkusen | Silver salt diffusion process |
GB1509175A (en) * | 1974-04-11 | 1978-04-26 | Agfa Gevaert | Production of adhesive transfers using photographic diffusion transfer |
US4407932A (en) * | 1981-03-12 | 1983-10-04 | Minnesota Mining & Manufacturing Co. | Fade-resistant and abrasion resistant photographic reproduction, method of preparing, and photographic product therefor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE444785A (en) * | 1939-11-02 | |||
US2543181A (en) * | 1947-01-15 | 1951-02-27 | Polaroid Corp | Photographic product comprising a rupturable container carrying a photographic processing liquid |
BE485609A (en) * | 1947-11-04 | 1942-11-12 | ||
US2647056A (en) * | 1948-02-12 | 1953-07-28 | Polaroid Corp | One step photographic transfer process |
-
0
- BE BE538152D patent/BE538152A/xx unknown
-
1953
- 1953-05-01 GB GB12183/53A patent/GB746186A/en not_active Expired
-
1954
- 1954-05-17 US US430074A patent/US2843485A/en not_active Expired - Lifetime
-
1955
- 1955-05-17 GB GB14211/55A patent/GB804283A/en not_active Expired
- 1955-05-17 FR FR1132420D patent/FR1132420A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2843485A (en) | 1958-07-15 |
FR1132420A (en) | 1957-03-11 |
GB804283A (en) | 1958-11-12 |
BE538152A (en) |
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