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 layer

Info

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
Application number
DEM95831D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mimosa AG
Original Assignee
Mimosa AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mimosa AG filed Critical Mimosa AG
Priority to DEM95831D priority Critical patent/DE481435C/en
Application granted granted Critical
Publication of DE481435C publication Critical patent/DE481435C/en
Expired legal-status Critical Current

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)

PATLNTANSPRUCIi Verfahren zum Herstellen von beiderseits mit lichtempfindlicher Schicht gemäß Patent 469 826 überzogenen, milchig getrübten Filmen, dadurch gekennzeichnet, daß beiderseits dieselbe Emulsion, auf der einen Seite aber nach Zusatz eines optischen Sensibilisators, verwendet wird.PATLNTANSPRUCIi method of making both sides with photosensitive Layer according to Patent 469 826 coated, milky opaque films, characterized in that that the same emulsion on both sides, but on one side after the addition of an optical one Sensitizer, is used.
DEM95831D 1926-07-20 1926-07-21 Process for the production of milky cloudy films coated on both sides with a light-sensitive layer Expired DE481435C (en)

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)

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