GB275933A - Improvements relating to the manufacture of photographic plates or films - Google Patents
Improvements relating to the manufacture of photographic plates or filmsInfo
- Publication number
- GB275933A GB275933A GB11980/27A GB1198027A GB275933A GB 275933 A GB275933 A GB 275933A GB 11980/27 A GB11980/27 A GB 11980/27A GB 1198027 A GB1198027 A GB 1198027A GB 275933 A GB275933 A GB 275933A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colloid
- films
- agar
- diaphragm
- prepared
- 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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
Abstract
275,933. I. G. Farbenindustrie Akt.- Ges. Aug. 12, 1926, [Convention date]. Electric endosmose.-An anti-halation material for coating between the sensitive emulsion and the support of photographic plates or films is prepared by electrodialysis from a solution of an. organic colloid of hydrophil nature, containing manganese compounds. The layer may be prepared, for example, by introducing gelatin, agar-agar, cellulose esters, &c., containing potassium permanganate or manganese dioxide into the middle cell of an electrodialysis apparatus having an electropositive diaphragm such as chrome gelatin, a fabric of animal fibre, chrome leather, &c. on the anode side of the middle cell, and an electronegative diaphragm such as parchment paper, sail cloth, a cellulose ester, &c. on the cathode side thereof. After dialysis, the colloid solution may he neutralized, or mixed with electrolytes or with a further quantity of colloid, before casting on the support.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE275933X | 1926-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB275933A true GB275933A (en) | 1927-11-24 |
Family
ID=6027966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11980/27A Expired GB275933A (en) | 1926-08-12 | 1927-05-04 | Improvements relating to the manufacture of photographic plates or films |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE341016A (en) |
FR (1) | FR630717A (en) |
GB (1) | GB275933A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2741981A (en) * | 1948-06-28 | 1956-04-17 | Warren S D Co | Planographic printing plate and treatment thereof |
-
0
- BE BE341016D patent/BE341016A/xx unknown
-
1927
- 1927-03-11 FR FR630717D patent/FR630717A/en not_active Expired
- 1927-05-04 GB GB11980/27A patent/GB275933A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2741981A (en) * | 1948-06-28 | 1956-04-17 | Warren S D Co | Planographic printing plate and treatment thereof |
Also Published As
Publication number | Publication date |
---|---|
FR630717A (en) | 1927-12-08 |
BE341016A (en) |
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