GB690212A - Improvements in or relating to processes for the development of images in photographic layers to produce developed images consisting of metal - Google Patents
Improvements in or relating to processes for the development of images in photographic layers to produce developed images consisting of metalInfo
- Publication number
- GB690212A GB690212A GB27357/48A GB2735748A GB690212A GB 690212 A GB690212 A GB 690212A GB 27357/48 A GB27357/48 A GB 27357/48A GB 2735748 A GB2735748 A GB 2735748A GB 690212 A GB690212 A GB 690212A
- Authority
- GB
- United Kingdom
- Prior art keywords
- developer
- development
- stabilized
- drum
- heating
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/58—Processes for obtaining metallic images by vapour deposition or physical development
-
- 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
- G03C1/52—Compositions containing diazo compounds as photosensitive substances
- G03C1/62—Metal compounds reducible to metal
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
690,212. Methods of physical development. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 21, 1948 [Oct. 24, 1947], No. 27357/48. Class 98 (ii). A process for producing metal images in exposed photographic material by physical development, in which the whole of the material to be developed is introduced to the developer at the same time and later is removed therefrom at the same time, comprises supplying a quantity of developer stabilized against decomposition to the exposed material, removing the material from the developer or the source of supply of developer from the material, and thereafter allowing development to proceed while heating the material and the developer applied thereto. The developer may be stabilized by cooling, dilution or acidifying to pH less than 1. The photographic material may have developer applied to it by impregnating, dipping, spraying or sprinkling and development effected by heating with steam, hot air, infra-red radiation, hot water, or by application to a hot plate or drum. Thus a regenerated cellulose film is sensitized with 1-hydroxy 2- diazonium 6-methyl benzene 4-sulphonic acid, mercurous nitrate and nitric acid, dried, exposed, and wound helically on to a drum which is then rotated in a bath of developer, the drum then being removed and steam passed into its interior to accelerate development, the film thereafter being washed with boiling water and then aqueous glycerol. The developer bath may contain either a metol-silver nitrate developer stabilized with nitric acid or a hydroquinone-tartaric acid-silver nitrate developer, to which glycerol is added to prevent freezing, stabilized by cooling to - 6 ‹ C. A paper support similarly sensitized is developed in a similar manner, heating being achieved by means of steam or on a print glazing drum. Alternatively there may be used a hydro. quinone-silver nitrate developer stabilized by dilution, more especially by lowering the concentration of the reducing agent. Specifications 439,005. and 545,901 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL690212X | 1947-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB690212A true GB690212A (en) | 1953-04-15 |
Family
ID=19806116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27357/48A Expired GB690212A (en) | 1947-10-24 | 1948-10-21 | Improvements in or relating to processes for the development of images in photographic layers to produce developed images consisting of metal |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE485427A (en) |
| DE (1) | DE809279C (en) |
| FR (1) | FR973939A (en) |
| GB (1) | GB690212A (en) |
| NL (1) | NL69919C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385705A (en) * | 1963-10-09 | 1968-05-28 | Philips Corp | Photo-sensitive material having a shallow layer containing a benzenediazo sulfonic acid compound or salts thereof |
-
0
- NL NL69919D patent/NL69919C/xx active
- BE BE485427D patent/BE485427A/xx unknown
-
1948
- 1948-10-19 DE DEP18812D patent/DE809279C/en not_active Expired
- 1948-10-21 GB GB27357/48A patent/GB690212A/en not_active Expired
- 1948-10-22 FR FR973939D patent/FR973939A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385705A (en) * | 1963-10-09 | 1968-05-28 | Philips Corp | Photo-sensitive material having a shallow layer containing a benzenediazo sulfonic acid compound or salts thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR973939A (en) | 1951-02-16 |
| NL69919C (en) | |
| BE485427A (en) | |
| DE809279C (en) | 1951-07-26 |
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