GB393465A - Improvement in the art of treating photographic emulsion layers - Google Patents
Improvement in the art of treating photographic emulsion layersInfo
- Publication number
- GB393465A GB393465A GB28557/32A GB2855732A GB393465A GB 393465 A GB393465 A GB 393465A GB 28557/32 A GB28557/32 A GB 28557/32A GB 2855732 A GB2855732 A GB 2855732A GB 393465 A GB393465 A GB 393465A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emulsion layers
- photographic emulsion
- oct
- bath
- mixture
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
-
- 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
- G03C11/00—Auxiliary processes in photography
- G03C11/06—Smoothing; Renovating; Roughening; Matting; Cleaning; Lubricating; Flame-retardant treatments
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
393,465. Hardening photographic emulsion layers. S.O.S. PROCESSING CO., Inc., 151, West 40th Street, New York, U.S.A.-(Assignees of Stewart, V. A. ; 425, West End Avenue, New York, U.S.A.) Oct. 13, 1932, No. 28557. Convention date, Oct. 31, 1931. Drawings to Specification. [Class 98 (ii).] In a method of hardening emulsion layers, especially those of kinematograph films, the layers are treated with a mixture of formaldehyde, tannic acid and a substance such as glycerine, by passing the support bearing the developed layer through a bath of the mixture. The bath may contain turpentine, eucalyptus oil, carbon tetrachloride and alcohol in addition to the above ingredients. In the case of kinematograph films a treating chamber similar to the usual developing chambers is arranged between the developing chamber and the usual drying-apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR744313T | |||
| US393465XA | 1931-10-31 | 1931-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB393465A true GB393465A (en) | 1933-06-08 |
Family
ID=78669013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28557/32A Expired GB393465A (en) | 1931-10-31 | 1932-10-13 | Improvement in the art of treating photographic emulsion layers |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE391977A (en) |
| FR (1) | FR744313A (en) |
| GB (1) | GB393465A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749969C (en) * | 1937-11-28 | 1944-12-12 | Felix Anthony | Wetting fluid for films |
-
0
- FR FR744313D patent/FR744313A/fr not_active Expired
- BE BE391977D patent/BE391977A/xx unknown
-
1932
- 1932-10-13 GB GB28557/32A patent/GB393465A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE391977A (en) | |
| FR744313A (en) | 1933-04-14 |
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