DE481435C - Process for the production of milky cloudy films coated on both sides with a light-sensitive layer - Google Patents
Process for the production of milky cloudy films coated on both sides with a light-sensitive layerInfo
- Publication number
- DE481435C DE481435C DEM95831D DEM0095831D DE481435C DE 481435 C DE481435 C DE 481435C DE M95831 D DEM95831 D DE M95831D DE M0095831 D DEM0095831 D DE M0095831D DE 481435 C DE481435 C DE 481435C
- Authority
- DE
- Germany
- Prior art keywords
- sides
- production
- light
- sensitive layer
- films coated
- 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
- G03C1/46—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein having more than one photosensitive layer
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
Verfahren zum Herstellen von beiderseits mit lichtempfindlicher Schicht überzogenen, milchig getrübten Filmen Zusatz zum Patent 469 826 Das Patent 469 826 betrifft ein photographisches Filmmaterial zur Herstellung von Aufsichts- und Durchsichtskopien in einem Bild, das aus einem milchig getrübten photographischen Film besteht, der auf der Rückseite mit einer zweiten Emulsionsschicht versehen ist, und zwar einer solchen, deren Empfindlichkeit die der vorderen Schicht übertrifft. Nach den Beispielen ist hierbei an Unterschiede der Empfindlichkeit gedacht, die durch die Wahl verschiedener Halogene oder durch verschiedenen Reifungsgrad erzeugt sind.Method of making both sides with photosensitive layer coated, milky films Addition to Patent 469 826 Patent 469 826 relates to a photographic film material for the production of top-view and see-through copies in an image consisting of a milky, cloudy photographic film, the is provided on the back with a second emulsion layer, namely one those whose sensitivity exceeds that of the front layer. According to the examples is thought of differences in sensitivity that result from the choice of different Halogens or produced by different degrees of ripening.
Es hat sich nun als vorteilhaft erwiesen, eine Halogensilber-Emulsion in zwei Teile zu teilen und den für die Rückseite des Films bestimmten Teil vor dem Auftragen optisch zu sensibilisieren und dadurch empfindlicher -als den für die Vorderseite bestimmten Teil zu machen.It has now proven advantageous to use a halide silver emulsion divided into two parts and the part intended for the back of the film in front to sensitize the application optically and therefore more sensitive than the one for to make the front specific part.
Die Empfindlichkeitsunterschiede können sehr erheblich gemacht werden.The differences in sensitivity can be made very significant.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM95831D DE481435C (en) | 1926-07-20 | 1926-07-21 | Process for the production of milky cloudy films coated on both sides with a light-sensitive layer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0095831 | 1926-07-20 | ||
DEM95831D DE481435C (en) | 1926-07-20 | 1926-07-21 | Process for the production of milky cloudy films coated on both sides with a light-sensitive layer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE481435C true DE481435C (en) | 1931-06-06 |
Family
ID=25988226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM95831D Expired DE481435C (en) | 1926-07-20 | 1926-07-21 | Process for the production of milky cloudy films coated on both sides with a light-sensitive layer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE481435C (en) |
-
1926
- 1926-07-21 DE DEM95831D patent/DE481435C/en not_active Expired
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