GB748688A - Photographic process for the direct production of copies by the silver salt diffusion process - Google Patents
Photographic process for the direct production of copies by the silver salt diffusion processInfo
- Publication number
- GB748688A GB748688A GB2102154A GB2102154A GB748688A GB 748688 A GB748688 A GB 748688A GB 2102154 A GB2102154 A GB 2102154A GB 2102154 A GB2102154 A GB 2102154A GB 748688 A GB748688 A GB 748688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver salt
- original record
- salt diffusion
- copies
- layer
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
748,688. Photographic silver salt diffusion process. AGFA AKT.-GES. FUR PHOTOFABRIKATION. July. 19, 1954 [July 24, 1953], No. 21021/54. Class 98 (2). An original record on a sheet is copied face-toface on to a direct positive light-sensitive silver halide layer and the latter is treated by the diffusion transfer developing process to give a final copy on a reception layer of negative gradation to the original record. A laterally correct copy with black writing on a white ground may thus be made from an original record with white writing on a black ground. The direct positive layer may be one using the Herschel or Sabattier effect, or the layers of Specifications 443,245 or 748,681 may be used. Specification 614,155 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1953A0018487 DE950040C (en) | 1953-07-24 | 1953-07-24 | Process for the direct production of laterally correct copies by the silver salt diffusion process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB748688A true GB748688A (en) | 1956-05-09 |
Family
ID=6924187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2102154A Expired GB748688A (en) | 1953-07-24 | 1954-07-19 | Photographic process for the direct production of copies by the silver salt diffusion process |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE530621A (en) |
| CH (1) | CH328109A (en) |
| DE (1) | DE950040C (en) |
| FR (1) | FR1105118A (en) |
| GB (1) | GB748688A (en) |
-
0
- BE BE530621D patent/BE530621A/xx unknown
-
1953
- 1953-07-24 DE DE1953A0018487 patent/DE950040C/en not_active Expired
-
1954
- 1954-06-05 CH CH328109D patent/CH328109A/en unknown
- 1954-07-19 GB GB2102154A patent/GB748688A/en not_active Expired
- 1954-07-22 FR FR1105118D patent/FR1105118A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE950040C (en) | 1956-10-04 |
| FR1105118A (en) | 1955-11-28 |
| CH328109A (en) | 1958-02-28 |
| BE530621A (en) |
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