DE517163C - Photographic roll film without protective paper - Google Patents

Photographic roll film without protective paper

Info

Publication number
DE517163C
DE517163C DEI36572D DEI0036572D DE517163C DE 517163 C DE517163 C DE 517163C DE I36572 D DEI36572 D DE I36572D DE I0036572 D DEI0036572 D DE I0036572D DE 517163 C DE517163 C DE 517163C
Authority
DE
Germany
Prior art keywords
protective paper
photographic
film
roll film
photographic roll
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
DEI36572D
Other languages
German (de)
Inventor
Dr Hermann Lummerzheim
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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
Priority claimed from DEJ30644D external-priority patent/DE467780C/en
Priority claimed from DEI31853D external-priority patent/DE468374C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI36572D priority Critical patent/DE517163C/en
Priority to FR37043D priority patent/FR37043E/en
Application granted granted Critical
Publication of DE517163C publication Critical patent/DE517163C/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
    • G03C11/02Marking or applying text
    • 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
    • G03C3/00Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Description

Photographischer Rollfilm ohne Schutzpapier In den Patentschriften 467 780, 468 374 und 469 193 sind Verfahren beschrieben zum Beschriften von photographischen Filmen durch Farbauftrag auf der Rückseite. Für diese Verfahren wurde ein wichtiges neues Anwendungsgebiet gefunden, das zu neuartigen und fortschrittlichen technischen Erzeugnissen führt.A photographic roll film without paper in the patent specifications 467 780, 468 374 and 469 193 processes are described for labeling of photographic films by application of ink to the back. An important new field of application has been found for these processes, which leads to novel and advanced technical products.

Die bekannten photographischen und kinematographischen, auf Spulen gewickelten Rollfilme sind an den nicht von den Spulenflanschen geschützten Seiten durch Streifen von lichtundurchlässigem Schutzpapier vor der Einwirkung des Lichtes geschützt. Bei der üblichen Ausführung des photographischen Rollfilms ist der Film auf der ganzen Länge mit einem derartigen Schutzpapierstreifen hinterlegt, während es bei den kinematographischen Rollfilmen üblich ist, am vorderen und hinteren Ende je einen Führungsstreifen aus Schutzpapier anzukleben, von denen einer beim Aufwickeln in mehreren Windungen über dem lichtempfindlichen Film liegt und ihn auf diese Weise gegen Lichtzutritt sichert. Beide Arten der Verwendung von Schutzpapier besitzen Nachteile. Wenn der lichtempfindliche Film mit einem gleich langen Schutzpapierstreifen aufgewickelt ist, so macht sich, insbesondere bei längerem Lagern und in den Tropen, eine Verschleierung der lichtempfindlichen Schicht unter der Einwirkung gewisser Bestandteile des Papiers bemerkbar. Wenn man @an.derseits den Filmstreifen nur an seinen beiden Enden mit j-e. einem Papierstreifen vereinigt, so geben die hierzu notwendigen Klebestellen häufig Anlaß zu Störungen beim Fortschalten des Films. Aus diesen Gründen ist bereits vorgeschlagen worden, den Rollfilm mit aus dem Material des Films bestehenden lichtschützenden und die Entwicklungsbäder nicht verunreinigenden Verlängerungen zu versehen. Wenn trotzdem auch heute noch die auf dem Markt befindlichen photographischen und kinematographischen Rollfilme durch Papierstreifen vor den Einwirkungen des Lichtes geschützt werden, so liegt dies daran, daß es bisher nicht gelungen ist; ein praktisch brauchbares Verfahren zu finden, nach welchem die beiden Enden des Filmstreifens so verändert werden können, daß sie einerseits hinreichend lichtdicht sind und anderseits die photographischen Behandlungsflüssigkeiten nicht verunreinigen. Es wurde nun gefunden, daß man in einfacher Weise photographische und kinematographische Rollfilme ohne Schutzpapier herstellen kann, wenn man den Filmstreifen an beiden Enden auf der ganzen Fläche der Rückseite nach dem Verfahren des Hauptpatents und des r. und z. Zusatzpatents mit einer für aktinische Strahlen nicht durchlässigen und in den photographischen Behandlungsflüssigkeiten unlöslichen Färbung versieht.The well-known photographic and cinematographic, on spools wound roll films are on the sides not protected by the reel flanges by strips of opaque protective paper from exposure to light protected. In the usual implementation of photographic roll film, the film is backed along the entire length with such a protective paper strip, while it is common in cinematographic roll film, at the leading and trailing ends to stick a guide strip of protective paper each, one of which when winding up lies in several turns over the photosensitive film and fix it in this way Secures against light entry. Own both ways of using protective paper Disadvantage. If the photosensitive film with a protective paper strip of the same length is wound up, especially when stored for long periods and in the tropics, a fogging of the photosensitive layer under the action of certain Components of the paper noticeable. If you @ on the other hand, just look at the film strip both ends with j-e. united in a strip of paper, they give this necessary splices often give rise to malfunctions when the film is switched on. For these reasons it has already been proposed to use the roll film from the material light-protecting baths that protect the film and do not contaminate the developing baths To provide extensions. Even if still the ones on the market today photographic and cinematographic roll films through paper strips in front of the The effects of light are protected, this is because it has not yet been succeeded; to find a practically useful method by which the two Ends of the film strip can be changed so that they are sufficient on the one hand are light-tight and, on the other hand, the photographic processing liquids are not contaminate. It has now been found that you can easily can produce photographic and cinematographic roll films without protective paper, if you look at both ends of the film strip all over the surface of the back the procedure of the main patent and the r. and Z. Additional patents with one for actinic Rays not permeable and in the photographic processing fluids insoluble staining.

Durch Anwendung von Farbstofflösungen in schwerflüchtigen Lösungsmitteln, gegebenenfalls unter Zusatz von Kolloiden oder unter nachfolgendem überziehen mit einer Kollöidlösung, erhält man Färbungen, welche nicht auf der Oberfläche des Schichtträgers haften, sondern tief in sein lnneres eindringen und infolgedessen in den üblichen photographischen Behandlungsflüssigkeiten nicht löslich sind.By using dye solutions in non-volatile solvents, optionally with the addition of colloids or with subsequent coating a colloid solution, colorations are obtained which do not appear on the surface of the substrate stick, but penetrate deeply into its interior and consequently into the usual photographic processing liquids are not soluble.

Die den beiden Filmenden zu erteilende Färbung richtet sich nach den Empfindlichkeitseigenschaften der jeweiligen Emulsionsschicht. Es ist nicht notwendig, da.B 'die gewählte Farbe bereits in einfacher Schicht die erforderliche Lichtsicherheit bietet, sondern es genügt, wenn die Färbung in mehreren Schichten übereinander die auf die Emulsion aktinisch wirkenden Strahlen zurückhält. Zur Färbung kann man sowohl Farbstoffe wie Pigmente verwenden.The coloring to be given to the two ends of the film depends on the Sensitivity properties of the respective emulsion layer. It's not necessary, da.B 'the selected color provides the necessary light security in a single layer offers, but it is sufficient if the coloring is in several layers on top of the other Retains actinic rays on the emulsion. You can use both for coloring Use dyes such as pigments.

Gegebenenfalls kann die Färbung an einzelnen Stellen ausgespart werden, um auf diese Weise im Schichtträger eine Firmenaufschrift o. dgl. zu erzeugen.If necessary, the coloring can be left out in individual places, in order to produce a company inscription or the like in this way in the layer carrier.

Claims (1)

PA TRNTANSPRUCH Photographischer Rolliihn ohne Schutzpapier, dadurch gekennzeichnet, daß der Filmstreifen an beiden Enden auf der ganzen Fläche der Rückseite mit einer nach Patent- 467 780 erzeugten, für aktinische Lichtstrahlen nicht durchlässigen und in den photographischen Behandlungsflüssigkeiten unlöslichen Färbung versehen ist.PA TRNTANSPRUCH Photographic Rolliihn without protective paper, characterized in that the film strip at both ends over the entire surface of the back side with a by Patent 467,780 produced non-transmissive of actinic light rays and provided in the photographic processing liquids insoluble coloring.
DEI36572D 1927-03-16 1928-12-22 Photographic roll film without protective paper Expired DE517163C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEI36572D DE517163C (en) 1927-03-16 1928-12-22 Photographic roll film without protective paper
FR37043D FR37043E (en) 1927-03-16 1929-06-13 Process for providing blank photographic films with visible inscriptions capable of being reproduced

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEJ30644D DE467780C (en) 1927-03-16 1927-03-16 Process for providing photographic raw films with visible, copyable lettering at regular intervals outside the image area, consisting of consecutive numbers or characters
DEI31853D DE468374C (en) 1927-03-16 1927-08-12 Process for providing photographic raw films with visible, copyable writing
DEI36572D DE517163C (en) 1927-03-16 1928-12-22 Photographic roll film without protective paper

Publications (1)

Publication Number Publication Date
DE517163C true DE517163C (en) 1931-01-31

Family

ID=31950181

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI36572D Expired DE517163C (en) 1927-03-16 1928-12-22 Photographic roll film without protective paper

Country Status (1)

Country Link
DE (1) DE517163C (en)

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