GB675858A - Improvements in or relating to the hardening of photographic material - Google Patents
Improvements in or relating to the hardening of photographic materialInfo
- Publication number
- GB675858A GB675858A GB1314449A GB1314449A GB675858A GB 675858 A GB675858 A GB 675858A GB 1314449 A GB1314449 A GB 1314449A GB 1314449 A GB1314449 A GB 1314449A GB 675858 A GB675858 A GB 675858A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dioxane
- layer
- derivative
- gelatin
- hardening
- 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
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/30—Hardeners
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
675,858. Hardening photographic layers. GEVAERT PHOTO-PRODUCTEN, N.V. May 5, 1950 [May 17, 1949], No. 13144/49. Class 98 (ii). 2 : 3 - Dihalogeno - dioxane or 5 : 6 - alkyl, aryl or halogen derivatives thereof such as 2 : 3 : 5 : 6 - tetrachloro - dioxane or 5 : 6- diphenyl - 2 : 3 : 5 : 6 - tetrachloro - dioxane are incorporated into a gelatin containing photographic layer such as a negative or positive gelatino-silver halide emulsion layer or an anti-halation, anti-abrasion or intermediate layer. The hardening effect may be enhanced by incorporation, also, of a carbocyclic compound having at least one nuclear hydroxyl group such as resorcinol, phloroglucinol, salicylaldehyde or resorcylaldehyde; and the use of such carbocyclic compounds together with a dioxane derivative eliminates " post-hardening ". Incorporation of the dioxane derivative may be effected by mixing it with the coating solution for the layer to be hardened or with the gelatin used for preparing this solution, by bathing the layer, after coating, in an alcohol solution of the derivative, or by provision of an adjacent gelatin layer containing the derivative. The carbocyclic compound, when used, may be incorporated similarly. In example 1, 0.2 gram of 2 : 3- dichloro-dioxane is incorporated into a kilogram of silver halide gelatin emulsion. Example 2 specifies half this quantity of dioxane derivative together with 0.5 gram resercinol and 0.05 gram resorcylaldehyde.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL80789D NL80789C (en) | 1949-05-17 | ||
BE495747D BE495747A (en) | 1949-05-17 | ||
NL676714664A NL153364B (en) | 1949-05-17 | CONNECTOR FITTED WITH A SHRINK SLEEVE FOR MAKING A MECHANICAL AND / OR ELECTRICAL CONNECTION. | |
GB1314449A GB675858A (en) | 1949-05-17 | 1949-05-17 | Improvements in or relating to the hardening of photographic material |
FR1020338D FR1020338A (en) | 1949-05-17 | 1950-05-11 | Process for hardening photographic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1314449A GB675858A (en) | 1949-05-17 | 1949-05-17 | Improvements in or relating to the hardening of photographic material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB675858A true GB675858A (en) | 1952-07-16 |
Family
ID=10017658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1314449A Expired GB675858A (en) | 1949-05-17 | 1949-05-17 | Improvements in or relating to the hardening of photographic material |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE495747A (en) |
FR (1) | FR1020338A (en) |
GB (1) | GB675858A (en) |
NL (2) | NL153364B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2870013A (en) * | 1956-11-29 | 1959-01-20 | Eastman Kodak Co | Hardening of gelatin with 2,3 dihydroxy dioxane |
US2992130A (en) * | 1958-09-15 | 1961-07-11 | Eastman Kodak Co | Prevention of popping of transparencies |
US3277041A (en) * | 1963-05-15 | 1966-10-04 | Eastman Kodak Co | Water resistant polyvinyl alcohol coatings |
-
0
- BE BE495747D patent/BE495747A/xx unknown
- NL NL80789D patent/NL80789C/xx active
- NL NL676714664A patent/NL153364B/en unknown
-
1949
- 1949-05-17 GB GB1314449A patent/GB675858A/en not_active Expired
-
1950
- 1950-05-11 FR FR1020338D patent/FR1020338A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2870013A (en) * | 1956-11-29 | 1959-01-20 | Eastman Kodak Co | Hardening of gelatin with 2,3 dihydroxy dioxane |
US2992130A (en) * | 1958-09-15 | 1961-07-11 | Eastman Kodak Co | Prevention of popping of transparencies |
US3277041A (en) * | 1963-05-15 | 1966-10-04 | Eastman Kodak Co | Water resistant polyvinyl alcohol coatings |
Also Published As
Publication number | Publication date |
---|---|
FR1020338A (en) | 1953-02-04 |
NL153364B (en) | |
NL80789C (en) | |
BE495747A (en) |
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