DE385267C - Process for the production of one-sided light-sensitive film strips - Google Patents

Process for the production of one-sided light-sensitive film strips

Info

Publication number
DE385267C
DE385267C DE1921S0055396 DES0055396D DE385267C DE 385267 C DE385267 C DE 385267C DE 1921S0055396 DE1921S0055396 DE 1921S0055396 DE S0055396 D DES0055396 D DE S0055396D DE 385267 C DE385267 C DE 385267C
Authority
DE
Germany
Prior art keywords
production
film
sensitive film
film strips
sided light
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
DE1921S0055396
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.)
Cellophane SA France
Original Assignee
Cellophane SA France
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 Cellophane SA France filed Critical Cellophane SA France
Application granted granted Critical
Publication of DE385267C publication Critical patent/DE385267C/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
    • G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
    • G03C1/496—Binder-free compositions, e.g. evaporated

Description

Vorliegende Erfindung bezieht sich auf .das für photogr&phische Filmbänder mit wasserdurchlässiger Unterlage bekannte Verfahren, daß den Zweck hat, nur eine Seite der wasserdurchlässigen Unterlage selbst lichtempfindlich zu machen. Mit anderen Worten: das Verfahren ist auf den Zweck angelegt, die Anreicherung des lichtempfindlichen Salzes an nur 'einer Seite der wasserdurchlässigen Unterlage herbeizuführen. Solche Verfahren sind bekannt (vgl. Patente 231562 und 230SS8).The present invention relates to the for photographic film tapes with water-permeable Document known method that has the purpose of making only one side of the water-permeable To make the pad itself light-sensitive. In other words, the procedure is designed for the purpose that Enrichment of the light-sensitive salt on only one side of the water-permeable base bring about. Such processes are known (see patents 231562 and 230SS8).

Bei dem vorliegenden Verfahren wird die wasserdurchlässige Unterlage durch das erste Bad hindurchgeführt, welches die Aufschwellung des Bandes und die Imprägnierung eines der Produkte bewirkt, die später reagieren sollen. Nachdem dies geschehen und bevor man das Filmband in das zweite Bad einst» bringt, wird dasselbe verdoppelt, d. h., es wer- j den zwjäi^Filrnjbänder aufeinandergelegt und ; durch Hindiurchführung zwischen zwei WaI-• zen vereinigt.' "In "dieser Weise erhält man ein Döppemimband, das nunmehr der Einwirkung der_zweiten Bades unterworfen wird,, welches dazu dient7Tm~lTKer5 3es Häutchens, alber nahe dessen Oberfläche, das lichtempfindliche Salz zu enzeugen. Nach Beendigung dieser Operation werden die aufeinandergelegten Filme wieder getrennt; in dieser Weise erhält man zwei Filmbänder, in welchen das lichtempfindliche Salz sich auf nur einer Seite befindet, ohne daß man die Bänder mit Klebstoff in Berührung zu bringen braucht.In the present method, the water-permeable substrate is passed through the first bath, which causes the swelling of the tape and the impregnation of one of the products that are to react later. This done and before you once "brings the film strip in the second bath, is the same doubled ie, advertising j piled the zwjäi ^ Filrnjbänder and; united by Hindu passage between two whales. '"In" this way one obtains a topping tape, which is now subjected to the action of the second bath, which serves to generate the light-sensitive salt of the skin, but near its surface. At the end of this operation, the films placed one on top of the other are separated again; in this way two film tapes are obtained in which the photosensitive salt is only on one side, without the need to bring the tapes into contact with adhesive.

•Selbstverständlich können die beiden Filmbänder anstatt zwischen dem Passieren des ersten und des zweiten Bades vor oder wäh-.rend ihrer Hindurchführung durch das erste Bad zusammengelegt werden.• Of course, the two film tapes can be used instead of between the first and second bath before or during their passage through the first Bath to be merged.

Diese Verfahrensweise liefert jedesmal zwei Filmbänder. Natürlich könnte man unter Verringerung des Ertrages des Verfahrens jedes Filmband auf einem den Bädern gegenüber undurchlässigen Träger befestigen, z. B. auf einer ebenen oder zylindrischen ^_Glas-JLäfihe. In diesem Falle wird nach vollendeter Behandlung das Band von dem^undurchlässigerrTräger"getrennt. *This procedure produces two tapes of film each time. Of course you could under Reduction of the yield of the process of each film tape on one of the baths opposite attach impermeable carrier, e.g. B. on a flat or cylindrical ^ _Glas-JLäfihe. In this case, after the treatment has been completed, the tape is separated from the "impermeable" carrier. *

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung von einseitig lichtempfindlichen Filmbändern mit wasserdurchlässiger Unterlage aus Zellulose oder Viskose 0. dgl. und in dasselbe durch Tränkung eingebetteter lichtempfindlicher Schicht für photographische Zwecke, dadurch gekennzeichnet, daß das er-weichte Filmband vor der Behandlung mit den die Bildschicht erzeugenden Salzlösungen mit einem gleichartigen Band oder einer undurchlässigen Unterlage zusammengewalzt wird, worauf die Tränkung zur Bildung der nur auf einer Filmseite eingebetteten Schicht erfolgt.Process for the production of single-sided photosensitive film tapes with water-permeable base made of cellulose or viscose 0. The like. And in the same by impregnation of an embedded photosensitive layer for photographic purposes, characterized in that the softened film tape prior to treatment with the salt solutions that form the image layer rolled together with a similar tape or an impermeable pad whereupon the impregnation takes place to form the layer embedded only on one side of the film.
DE1921S0055396 1920-04-19 1921-01-23 Process for the production of one-sided light-sensitive film strips Expired DE385267C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR514091T 1920-04-19
GB3253/21A GB179250A (en) 1920-04-19 1921-01-26 Photographic films with a carrier permeable to water

Publications (1)

Publication Number Publication Date
DE385267C true DE385267C (en) 1923-11-20

Family

ID=9754828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1921S0055396 Expired DE385267C (en) 1920-04-19 1921-01-23 Process for the production of one-sided light-sensitive film strips

Country Status (3)

Country Link
DE (1) DE385267C (en)
FR (1) FR514091A (en)
GB (1) GB179250A (en)

Also Published As

Publication number Publication date
FR514091A (en) 1921-03-02
GB179250A (en) 1922-04-26

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