GB902314A - Improvements in or relating to photographic diffusion transfer procedure - Google Patents
Improvements in or relating to photographic diffusion transfer procedureInfo
- Publication number
- GB902314A GB902314A GB3783860A GB3783860A GB902314A GB 902314 A GB902314 A GB 902314A GB 3783860 A GB3783860 A GB 3783860A GB 3783860 A GB3783860 A GB 3783860A GB 902314 A GB902314 A GB 902314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- developing agent
- emulsion
- transfer
- silver
- silver halide
- 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
Abstract
902,314. Photographic diffusion-transfer procedures. INTERNATIONAL POLAROID CORPORATION. Nov. 3, 1960 [Nov. 23, 1959], No. 37838/60. Class 98 (2). To produce silver transfer images of improved stability and reduced stain, development is effected with a first developer which may .be contained in the photo-sensitive element and which does not cause transfer to the image receiving stratum or element, and the transferred soluble silver complex is reduced with a second, volatile, silver halide developing agent. A product for the purpose has an element including a silver halide emulsion and the first developing agent, a rupturable container with processing composition including the second developing agent, a silver-receptive imagereceiving element, and silver halide solvent in one of the elements or in the composition. Preferably the composition is such as to produce a solidified layer on the receiving layer, but it is also contemplated to perform the process to cause such layer to adhere to the developed negative. In a first example, an exposed emulsion is processed in a standard metolhydroquinone developer and then processed again in the dark and without being fixed in a viscous solution comprising sodium hydroxide, thiosulphate and carboxymethyl cellulose with N,N-diethylhydroxylamine as the second developing agent whilst superposed on an imagereceiving element, which latter with the solidified layer of processing composition is later stripped off the emulsion. A second example uses an emulsion overcoated with a gelatin solution containing 4<SP>1</SP>-methyl-phenyl-hydroquinone and the transfer is effected with the viscous solution of Example 1 only, and a third example repeats this but with omission of the N,N-diethylhydroxylamine to show, for comparison purposes, only a pale positive image. The use of other volatile hydroxylamines for the procedure is indicated. Specifications 684,592, 752,409, 775,322, 789,837 and 902,313 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85455159A | 1959-11-23 | 1959-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB902314A true GB902314A (en) | 1962-08-01 |
Family
ID=25319006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3783860A Expired GB902314A (en) | 1959-11-23 | 1960-11-03 | Improvements in or relating to photographic diffusion transfer procedure |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE597248A (en) |
| CA (1) | CA638693A (en) |
| CH (1) | CH399902A (en) |
| DE (1) | DE1148447B (en) |
| GB (1) | GB902314A (en) |
| NL (1) | NL257727A (en) |
| SE (1) | SE307730B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10833832B2 (en) | 2016-06-22 | 2020-11-10 | Intel Corporation | Communication device and a method for full duplex scheduling |
-
0
- BE BE597248D patent/BE597248A/xx unknown
- CA CA638693A patent/CA638693A/en not_active Expired
- NL NL257727D patent/NL257727A/xx unknown
-
1960
- 1960-11-03 GB GB3783860A patent/GB902314A/en not_active Expired
- 1960-11-21 SE SE1120260A patent/SE307730B/xx unknown
- 1960-11-21 CH CH1300160A patent/CH399902A/en unknown
- 1960-11-23 DE DEJ19059A patent/DE1148447B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10833832B2 (en) | 2016-06-22 | 2020-11-10 | Intel Corporation | Communication device and a method for full duplex scheduling |
Also Published As
| Publication number | Publication date |
|---|---|
| SE307730B (en) | 1969-01-13 |
| BE597248A (en) | |
| CA638693A (en) | 1962-03-20 |
| CH399902A (en) | 1965-09-30 |
| DE1148447B (en) | 1963-05-09 |
| NL257727A (en) |
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