DE423894C - Protective tape cover for photographic films - Google Patents

Protective tape cover for photographic films

Info

Publication number
DE423894C
DE423894C DEP48237D DEP0048237D DE423894C DE 423894 C DE423894 C DE 423894C DE P48237 D DEP48237 D DE P48237D DE P0048237 D DEP0048237 D DE P0048237D DE 423894 C DE423894 C DE 423894C
Authority
DE
Germany
Prior art keywords
protective tape
photographic films
layers
tape cover
gelatin
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
DEP48237D
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.)
Pathe Cinema SA
Compagnie Generale des Etablissements Pathe Freres Phonographes et Cinematographes
Original Assignee
Pathe Cinema SA
Compagnie Generale des Etablissements Pathe Freres Phonographes et Cinematographes
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 Pathe Cinema SA, Compagnie Generale des Etablissements Pathe Freres Phonographes et Cinematographes filed Critical Pathe Cinema SA
Application granted granted Critical
Publication of DE423894C publication Critical patent/DE423894C/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
    • G03C3/00—Packages 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
    • G03C3/02—Photographic roll-films with paper strips

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Description

Vorliegende Erfindung betrifft eine Verbesserung von Schutzbandüberzügen für photographische Filme. Die Verbesserung bezweckt einen sicheren Schutz gegen Verletzungen chemischer oder mechanischer Art der empfindlichen Filme für photographische Zwecke und im besonderen der auf Rollen aufgewickelten Filme, welche bei Tageslicht in die photographischen Apparate eingesetzt werden können.The present invention relates to an improvement in protective tape covers for photographic films. The improvement aims to provide reliable protection against injuries chemical or mechanical type of sensitive films for photographic purposes and in particular those on rolls wound films which are used in the photographic apparatus in daylight can be.

Um zu verhindern, daß gewisse Bestandteile des Packungspapiers der Filme oder die zu deren Bedrucken verwendeten Farben eine chemische Wirkung auf die empfindliche Emulsion ausüben oder daß die Körnung des Papiers trotz gewissenhafter Satinierung Schrammen oder mechanische Kratzspuren auf dem Film durch Reibung auf der Emulsion hinterläßt, ist bereits vorgeschlagen worden, das Papier mit einer Schutzschicht, gewöhnlich aus Gelatine, zu bedecken. Eine derartige Gelatineschicht gewährt jedoch keine vollkommene Sicherheit. Zu dem gleichen Zweck ist auch ein Überzug aus Collodium oder Harz vorgeschlagen worden.To prevent certain components of the wrapping paper of the films or the inks used to print them have a chemical effect on the sensitive ones Exercise emulsion or that the grain of the paper despite careful satin finishing Scratches or mechanical scratch marks on the film due to friction on the emulsion leaves, has already been proposed, the paper with a protective layer, usually made of gelatin, to cover. However, such a gelatin layer does not guarantee a perfect one Safety. A coating of collodion or resin has also been proposed for the same purpose.

Entsprechend der Erfindung wird eine volle Sicherheit und Fleckenlosigkeit der Papierrückseite gegen Beschädigung erwähnter Art jedoch dadurch geschaffen, daß auf die Gelatineschicht auf der Seite des Packungspapiers, welches mit der Emulsion in Berührung kommt, eine oder mehrere Schichten eines Überzuges aus Nitrocellulose oder von irgendeiner einen anderen Zellstoff enthaltenden Substanz aufgelegt wird, welche keine Einwirkung auf die empfindliche Emulsion ausübt. Es ist selbstverständlich, daß, wenn mehrere Schichten von Gelatine und Celluloseesterschicht verwendet werden, man die Reihenfolge dieser verschiedenen Schichten umkehren and sogar beide Schichten abwechselnd auftragen kann.According to the invention, there is full security and stain-free paper backing against damage of the type mentioned, however, created in that on the gelatin layer one or more layers on the side of the packaging paper that comes into contact with the emulsion a coating of nitrocellulose or any other pulp containing it Substance is applied which has no effect on the sensitive emulsion. It goes without saying that if multiple layers of gelatin and cellulose ester layer can be used, one the Reverse the order of these different layers and even alternate both layers can apply.

Claims (1)

Patent-Ansprüche:Patent Claims: i. Schutzbandüberzug für photographische Filme, dessen mit der Emulsion des Films in Berührung tretende Fläche mit einer oder mehreren Lagen aus ZeIlstoffirnis besteht, dadurch gekennzeichnet, daß zwischen das Band und die Firnisschicht oder -schichten eine Gelatineschicht eingeschaltet ist.i. Protective tape coating for photographic films, the one containing the emulsion of the film in contact with one or more layers of cellulose varnish consists, characterized in that a gelatin layer between the tape and the varnish layer or layers is switched on. * 2. Schutzbandüberzug nach Anspruch 1, dadurch gekennzeichnet, daß zwischen die einzelnen Firnisschichten Gelatineschichten eingeschaltet sind.* 2. protective tape cover according to claim 1, characterized in that between the individual layers of varnish gelatin layers are switched on.
DEP48237D 1924-04-19 1924-06-07 Protective tape cover for photographic films Expired DE423894C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR423894X 1924-04-19

Publications (1)

Publication Number Publication Date
DE423894C true DE423894C (en) 1926-01-13

Family

ID=8898746

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP48237D Expired DE423894C (en) 1924-04-19 1924-06-07 Protective tape cover for photographic films

Country Status (3)

Country Link
DE (1) DE423894C (en)
FR (1) FR592982A (en)
GB (1) GB232605A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030229371A1 (en) * 2002-06-10 2003-12-11 Whitworth Warren A. Offset surgical scissors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030229371A1 (en) * 2002-06-10 2003-12-11 Whitworth Warren A. Offset surgical scissors

Also Published As

Publication number Publication date
GB232605A (en) 1925-07-23
FR592982A (en) 1925-08-13

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