GB475264A - Improvements in the production of light-sensitive material for the production of prints from tracings and the like - Google Patents
Improvements in the production of light-sensitive material for the production of prints from tracings and the likeInfo
- Publication number
- GB475264A GB475264A GB453036A GB453036A GB475264A GB 475264 A GB475264 A GB 475264A GB 453036 A GB453036 A GB 453036A GB 453036 A GB453036 A GB 453036A GB 475264 A GB475264 A GB 475264A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- paper
- sensitizing
- acid
- production
- 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
- G03C1/66—Compositions containing chromates as photosensitive substances
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
475,264. Photographic sensitive material. BACHMAIR. J., and KOLLMANN, L. Feb. 14, 1936, No. 4530. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 15, 1936.] [Class 98 (ii)] A process of sensitizing paper for treatment by the aniline process consists in treating the paper with a chromate, bichromate or a lightsensitive heavy metal salt, e.g. cerium sulphate, and with an organic acid in solution with a metal oxide, carbonate, silicate or an alkali which, acting as a buffering agent, reduces the acidity and prevents reaction between the sensitizer and the paper base. The sensitizing salt may be applied either in the acid solution. or as a separate solution after the acid solution, or as part of both acid solution and separate solution. Citric, oxalic and formic acids arc examples of acids used. One example of both acid and sensitizing solutions is given. A suitable fuming developer for the paper comprises aniline and water mixed together in the proportions 1 : 9. Specification 252,012, [Class 98 (ii)], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB453036A GB475264A (en) | 1936-02-14 | 1936-02-14 | Improvements in the production of light-sensitive material for the production of prints from tracings and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB453036A GB475264A (en) | 1936-02-14 | 1936-02-14 | Improvements in the production of light-sensitive material for the production of prints from tracings and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475264A true GB475264A (en) | 1937-11-15 |
Family
ID=9778922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB453036A Expired GB475264A (en) | 1936-02-14 | 1936-02-14 | Improvements in the production of light-sensitive material for the production of prints from tracings and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB475264A (en) |
-
1936
- 1936-02-14 GB GB453036A patent/GB475264A/en not_active Expired
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