GB852340A - Process for obtaining multiple positive images by diffusion-transfer - Google Patents
Process for obtaining multiple positive images by diffusion-transferInfo
- Publication number
- GB852340A GB852340A GB5442/57A GB544257A GB852340A GB 852340 A GB852340 A GB 852340A GB 5442/57 A GB5442/57 A GB 5442/57A GB 544257 A GB544257 A GB 544257A GB 852340 A GB852340 A GB 852340A
- Authority
- GB
- United Kingdom
- Prior art keywords
- positive
- diffusion
- transfer
- multiple positive
- feb
- 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
- G03C8/02—Photosensitive materials characterised by the image-forming section
- G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
- G03C8/06—Silver salt diffusion transfer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D9/00—Diffusion development apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
852,340. Silver halide diffusion-transfer process and positive material therefore. GEVAERT PHOTO-PRODUCTEN N.V. Feb. 18, 1957 [Feb. 17, 1956], No. 5442/57. Class 98(2) The process is adapted to the production of multiple positive copies by successive transfers from the same negative, for which purpose halogen ions are gradually liberated in the processing liquid after the development has started by inclusion of an alkali metal halide into the positive materials or of bromoacetic acid, triphenylmethyl phosphonium iodochloride or trimethyl sulphonium chloride into either the negative or the positive materials. Specifications 614,155 and 654,630 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE360901X | 1956-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB852340A true GB852340A (en) | 1960-10-26 |
Family
ID=3868417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5442/57A Expired GB852340A (en) | 1956-02-17 | 1957-02-18 | Process for obtaining multiple positive images by diffusion-transfer |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE545312A (en) |
CH (1) | CH360901A (en) |
FR (1) | FR1166232A (en) |
GB (1) | GB852340A (en) |
NL (1) | NL214518A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL243731A (en) * | 1959-09-24 |
-
0
- NL NL214518D patent/NL214518A/xx unknown
- BE BE545312D patent/BE545312A/xx unknown
-
1957
- 1957-02-11 FR FR1166232D patent/FR1166232A/en not_active Expired
- 1957-02-16 CH CH360901D patent/CH360901A/en unknown
- 1957-02-18 GB GB5442/57A patent/GB852340A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL214518A (en) | |
BE545312A (en) | |
CH360901A (en) | 1962-03-15 |
FR1166232A (en) | 1958-11-04 |
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