GB1225526A - - Google Patents
Info
- Publication number
- GB1225526A GB1225526A GB1225526DA GB1225526A GB 1225526 A GB1225526 A GB 1225526A GB 1225526D A GB1225526D A GB 1225526DA GB 1225526 A GB1225526 A GB 1225526A
- Authority
- GB
- United Kingdom
- Prior art keywords
- image
- give
- metal ions
- halogen acceptor
- 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
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/08—Sensitivity-increasing substances
-
- 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)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1,225,526. Photographic silver balide printout materials. EASTMAN KODAK CO. April 5, 1968 [April 7, 1967] , No. 16419/68. Heading G2C. A photographic silver halide material which may be used either as a print-out or as adeveloping- out material, has an emulsion layer in which the silver halide grains contain occluded polyvalent metal ions, the material also containing in the emulsion or another layer a halogen acceptor and a trivalent or tetravalent metal ion salt. The material gives a print-out image on exposure, which image may be stabilized by removal of the halogen acceptor by heating, washing or oxidation. Alternatively the material may be exposed insufficiently to give a print-out image but sufficiently to give a latent non-visible image and chemically developed and fixed to give a permanent image. The occluded polyvalent metal ions and the trivalent or tetravalent metal ions present in the salts may be Sb, Bi, As, Au, Ir, Rh, Pt, and Os ions. The halogen acceptor may be a thiourea, heterocyclic mercaptan or thione, thiosemicarbazide, hydrazine, urazole or thiourazole.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62909167A | 1967-04-07 | 1967-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1225526A true GB1225526A (en) | 1971-03-17 |
Family
ID=24521544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1225526D Expired GB1225526A (en) | 1967-04-07 | 1968-04-05 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3574625A (en) |
| BE (1) | BE713272A (en) |
| FR (1) | FR1558883A (en) |
| GB (1) | GB1225526A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3761266A (en) * | 1971-03-10 | 1973-09-25 | Eastman Kodak Co | Silver halide emulsions predominantly chloride containing silver halide grains with surfaces chemically sensitized and interiors free fromchemical sensitization and the use thereof in reversal processes |
| US3761276A (en) * | 1971-03-10 | 1973-09-25 | Eastman Kodak Co | Photographic element containing monodispersed unfogged silver halide grains chemically sensitized internally and externally |
| US3761267A (en) * | 1971-03-10 | 1973-09-25 | Eastman Kodak Co | Photographic element containing monodispersed unfogged dye sensitizedsilver halide grains metal ions sensitized internally and the use theeof in reversal process |
| DE3507830A1 (en) * | 1985-03-06 | 1986-09-11 | Agfa-Gevaert Ag, 5090 Leverkusen | COLOR PHOTOGRAPHIC RECORDING MATERIAL WITH A SILVER HALOGENID EMULSION AND METHOD FOR THE PRODUCTION THEREOF |
| US6942960B2 (en) * | 2003-08-12 | 2005-09-13 | Eastman Kodak Company | Photothermographic materials containing doped high iodide emulsions |
-
1967
- 1967-04-07 US US629091A patent/US3574625A/en not_active Expired - Lifetime
-
1968
- 1968-04-04 BE BE713272D patent/BE713272A/xx unknown
- 1968-04-05 GB GB1225526D patent/GB1225526A/en not_active Expired
- 1968-04-05 FR FR1558883D patent/FR1558883A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1622931B2 (en) | 1975-07-17 |
| US3574625A (en) | 1971-04-13 |
| BE713272A (en) | 1968-08-16 |
| FR1558883A (en) | 1969-02-28 |
| DE1622931A1 (en) | 1972-02-24 |
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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 |