DE497180C - Process for the production of films and photographic printing materials - Google Patents

Process for the production of films and photographic printing materials

Info

Publication number
DE497180C
DE497180C DER76002D DER0076002D DE497180C DE 497180 C DE497180 C DE 497180C DE R76002 D DER76002 D DE R76002D DE R0076002 D DER0076002 D DE R0076002D DE 497180 C DE497180 C DE 497180C
Authority
DE
Germany
Prior art keywords
films
production
photographic printing
skins
printing materials
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
DER76002D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DER76002D priority Critical patent/DE497180C/en
Application granted granted Critical
Publication of DE497180C publication Critical patent/DE497180C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C11/00Auxiliary processes in photography
    • G03C11/08Varnishing, e.g. application of protective layers on finished photographic prints

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)

Description

Verfahren zur Herstellung von Filmen und photographischen Kopiermaterialien Es wurde des öfteren vorgeschlagen, insbesondere dünne Metallfolien, z. B. Aluminiumfolien, mit lichtempfindlichen Schichten zu versehen und für photographische oder Filmzwecke geeignet zu machen. Die lichtempfindlichen Schichten werden hierbei; in flüssigem Zustande als Emulsion vorbereitet, mittels Gießmaschinen auf der Unterlage aufgegossen und erstarren gelassen. Diese Emulsionen sind meist unter Verwendung von nach dem Erstarren leicht brüchigen Materialiren, wie Gelatine u. dgl., zusammengestellt, und hat es sich erwiesen, daß die bisher aufgegossene Emulsion infolge der Verschiedenheit der Ausdehnung derselben gegenüber der Unterlage und infolge ihrer leichten Brüchigkeit auf der Unterlage nicht haftenbleibt und daher das emulsionierte Material für den gedachten Zweck nicht geeignet erscheint.Process for the production of films and photographic printing materials It has been proposed several times, particularly thin metal foils, e.g. B. aluminum foils, to be provided with photosensitive layers and for photographic or film purposes to make suitable. The light-sensitive layers are here; in liquid Condition prepared as an emulsion, poured onto the base using casting machines and froze. These emulsions are mostly made using after Solidification of easily brittle materials, such as gelatine and the like, put together, and it has been found that the previously poured emulsion, as a result of the difference the expansion of the same in relation to the base and as a result of its slight fragility does not adhere to the base and therefore the emulsified material for the intended purpose does not appear suitable.

Es ist bekanntermaßen möglich, ein für den erwähnten Zweck in jeder Beziehung entsprechendes Material herzustellen, indem man die lichtempfindliche Chemikalien enthaltende Schicht für sich herstellt und mittels geeigneten Klebstoffs auf der gewünschten Unterlage anbringt. Hierfür eignet sich ganz besonders eine aus Cellulosederivaten hergestellte und lichtempfindlich gemachte Haut.As is known, it is possible to produce a material which is suitable in every respect for the purpose mentioned by producing the layer containing photosensitive chemicals for itself and applying it to the desired support by means of a suitable adhesive. A skin made from cellulose derivatives and sensitized to light is particularly suitable for this.

Bei Verwendung von Cellulosehydraten ist es, unter Berücksichtigung der verwendeten Weichungsmittel (z. B. durch Glycerin gebundenes Wasser), von außerordentlicher Bedeutung, diese Weichungsmittel geschützt zu halten, weshalb erfindungsgemäß vorgeschlagen wird, nach erfolgter Entwicklung in nassem oder trockenem Kopierverfahrein das Material mit einem isolierenden Überzug aus Nitrolack o. dgl. zu versehen. Durch diese Maßnahme werden die Weichungsmittel auf lange Zeit geschützt und vor atmosphärischen Einwirkungen bewahrt. Diese Isolierung sollvorzugsweise so erfolgen, daß auch die Schnittkanten und Perforierlöcher der Ge11ulosebahn und der verwendeten Unterlage mit Nitrolack o. dgl. umschlossen sind. Die sonst in Cellulosehydratbahnen leichtentstehenden Einschrumpfungen werden hierdurch vermieden.When using cellulose hydrates it is to be taken into account the softening agents used (e.g. water bound by glycerine) are extraordinary The importance of keeping these softeners protected, which is why proposed according to the invention becomes, after development in wet or dry copying process in the material to be provided with an insulating coating of nitro lacquer or the like. By this measure the softeners are protected for a long time and from atmospheric agents preserved. This isolation should preferably be done so that the cut edges and perforation holes in the cellulose sheet and the base used with nitrocellulose varnish or the like. Are enclosed. The ones that otherwise arise easily in cellulose hydrate tracks Shrinkage is avoided in this way.

Nach vorliegendem Verfahren können Metalle, insbesondere Aluminiumfolien, die auch auf anderen Materialien, wie Papier, Gewebe, Leder, Holz usw., angebracht sein können, als Unterlage Verwendung finden. Bei Verwendung von z. B. dünnen Aluminiumfolien als spiegelnde Unterlage kann die Metallfolie beiderseits mit der lichtempfindlichen Cellulosehydratbahn belegt und beide Seiten als Bildfläche benutzt werden.According to the present method, metals, in particular aluminum foils, which can also be applied to other materials such as paper, fabric, leather, wood, etc. can be used as a base. When using z. B. thin aluminum foils The metal foil can be used as a reflective base on both sides with the light-sensitive Cellulose hydrate sheet covered and both sides are used as a picture surface.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zum Haltbarmachen von Filmen und photographischen Kopiermaterialien in Verbindung mit für sich hergestellten und mittels Klebstoff auf Unterlagen angebrachten lichtempfindlichen Ce11ulosehydrathäuten, dadurch gekennzeichnet, daß die Weichhaltungsmittel der Cellulosehydrathäute nach. dem Entwikkeln des Bildes mittels !einer Schicht, bestehend aus Nitrocelluloselack, Gellulloidlösung o. dgl., geschützt werden. z. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß als Unterlagen für die Cellulosehydrathäute dünne Metall-, insbesondere Aluminiumfolien, die auf Papier, Gewebe u. dgl. angebracht sein können, verwendet werden.PATENT CLAIMS: r. Process for the preservation of films and photographic Copying materials in connection with self-made and by means of glue light-sensitive Ce11ulose hydrate skins attached to substrates, characterized in that that the softeners of the Cellulose hydrate skins after. developing of the image by means of a layer consisting of nitrocellulose lacquer, gelulloid solution o. The like., are protected. z. Method according to claim i, characterized in that that thin metal, especially aluminum foils, as substrates for the cellulose hydrate skins, which can be applied to paper, fabric and the like.
DER76002D 1928-10-18 1928-10-18 Process for the production of films and photographic printing materials Expired DE497180C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER76002D DE497180C (en) 1928-10-18 1928-10-18 Process for the production of films and photographic printing materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER76002D DE497180C (en) 1928-10-18 1928-10-18 Process for the production of films and photographic printing materials

Publications (1)

Publication Number Publication Date
DE497180C true DE497180C (en) 1930-05-03

Family

ID=7415227

Family Applications (1)

Application Number Title Priority Date Filing Date
DER76002D Expired DE497180C (en) 1928-10-18 1928-10-18 Process for the production of films and photographic printing materials

Country Status (1)

Country Link
DE (1) DE497180C (en)

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