DE535838C - Protective paper strips for film rolls for daylight charge - Google Patents

Protective paper strips for film rolls for daylight charge

Info

Publication number
DE535838C
DE535838C DEI39686D DEI0039686D DE535838C DE 535838 C DE535838 C DE 535838C DE I39686 D DEI39686 D DE I39686D DE I0039686 D DEI0039686 D DE I0039686D DE 535838 C DE535838 C DE 535838C
Authority
DE
Germany
Prior art keywords
daylight
protective paper
charge
paper strips
paper
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
DEI39686D
Other languages
German (de)
Inventor
Dipl-Ing Walter Fischer
Dr Erich Opfermann
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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI39686D priority Critical patent/DE535838C/en
Application granted granted Critical
Publication of DE535838C publication Critical patent/DE535838C/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
    • 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

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)

Description

Schutzpapierstreifen für Filmrollen für Tageslichtladung Die üblichen Filmrollen für Tageslichtladung bestehen aus einem auf eine Spule gewickelten Filmstreifen, an welchem an beiden Enden zur Sicherung gegen das Licht Verlängerungen (sogenannte Allongen) aus für photographisch wirksame Lichtstrahlen nicht durchlässigem Papier angeklebt sind. Da es wünschenswert ist, daß diese Schutzpapierstreifen, um ein glattes Fortschalten zu gewährleisten, ungefähr ebenso steif wie der Filmstreifen sind, hat man bereits versucht, das Papier durch Auftragen von Schichten aus Gelatine oder Zellstoffabkömmlingen zu versteifen. Ferner hat man vorgeschlagen, zur Herstellung des Schutzpapierstreifens zwei Papierstreifen übereinanderzulegen und mit Hilfe einer Zwischenschicht eines wasserfesten Klebmittels zu vereinigen.Protective paper strips for film rolls for daylight loading The usual ones Film rolls for daylight charge consist of a film strip wound on a spool, on which extensions (so-called Allongen) made of paper that is not permeable to photographically effective light rays are glued on. Since it is desirable that these protective paper strips to a to ensure smooth indexing, about as stiff as the filmstrip Attempts have already been made to make the paper by applying layers of gelatin or to stiffen pulp derivatives. It has also been proposed to manufacture of the protective paper strip to lay two paper strips on top of each other and with the help to unite an intermediate layer of waterproof adhesive.

Wie gefunden wurde, kann man in einfacher Weise, ohne Auftragen besonderer Verstärkungsschichten, Schutzpapierstreifen der erforderlichen Steifheit herstellen, indem man den Streifen aus einem pergamentierten, in der üblichen Weise lichtundurchlässig gefärbten Papier herstellt.As has been found, one can do this in a simple manner without applying any special Make reinforcement layers, protective paper strips of the required rigidity, by making the strip of a parchment-coated, opaque in the usual way manufactures colored paper.

Die Pergamentierung des Papiers erfolgt in bekannter Weise, z. B. durch kurzes Eintauchen in starke Schwefelsäure und schnelles Wässern. Es kann sowohl ungeleimtes wie geleimtes, gegebenenfalls auch aus mehreren aufeinandergegautschten Lagen bestehendes Papier verwendet werden. Bei der Verwendung von geleimtem Papier wird die Pergamentierung auf die Oberfläche des Papiers beschränkt. Es ist auch möglich, eine Lage schwarzes und eine Lage rotes Papier durch Pergamentierung miteinander zu vereinigen oder zwei Papierstreifen getrennt für sich zu pergamentieren, zu wässern und dann in feuchtem Zustand aufeinanderzugautschen.The parchment of the paper is done in a known manner, for. B. by briefly immersing in strong sulfuric acid and quickly soaking. It can do both Unsized as well as glued, possibly also from several rubberized one on top of the other Layers of existing paper can be used. When using sized paper the parchment is limited to the surface of the paper. It is also possible, a layer of black and a layer of red paper by parchment together to combine or to parchment two strips of paper separately, to water and then squeeze together when they are wet.

Die Schutzpapierstreifen aus pergamentiertem Papier haben gegenüber den bisher bekannten Schutzpapierstreifen nicht nur den Vorteil einer größeren Steifigkeit und Reißfestigkeit, sondern bieten außerdem infolge der durch die Pergamentierung bedingten Schließung der Poren eine höhere Lichtsicherheit und sind fett- und wasserdichter. Sie schützen daher den Film auch gegen Feuchtigkeit und verzögern sein Austrocknen.The protective paper strips made of parchment paper have opposite the previously known protective paper strips not only have the advantage of greater rigidity and tear resistance, but also offer a result of the parchment conditional closure of the pores a higher light security and are grease and waterproof. They therefore also protect the film against moisture and delay its drying out.

Die pergamentierten Schutzpapierstreifen können gegebenenfalls noch einer mechanischen Glättung unterworfen werden. Ebenso können sie zur Erzielung eines besseren Gleitens in bekannter Weise mit Überzügen von Wachs, Gelatine o. dgl. versehen werden.The parchment-coated protective paper strips can still be used if necessary be subjected to mechanical smoothing. Likewise, they can be used to achieve better gliding in a known manner with coatings of wax, gelatine or the like. Like. Be provided.

Claims (1)

PATENTANSPRUCH: Schutzpapierstreifen für Filmrollen für Tageslichtladung, bestehend aus einer oder mehreren Lagen von pergamentiertem, in der üblichen Weise gefärbtem und gegebenenfalls mechanisch geglättetem Papier.PATENT CLAIM: Protective paper strips for film rolls for daylight charge, consisting of one or more layers of parchment, in the usual way colored and optionally mechanically smoothed paper.
DEI39686D 1929-10-25 1929-10-26 Protective paper strips for film rolls for daylight charge Expired DE535838C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI39686D DE535838C (en) 1929-10-25 1929-10-26 Protective paper strips for film rolls for daylight charge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE356981X 1929-10-25
DEI39686D DE535838C (en) 1929-10-25 1929-10-26 Protective paper strips for film rolls for daylight charge

Publications (1)

Publication Number Publication Date
DE535838C true DE535838C (en) 1931-10-15

Family

ID=25839696

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI39686D Expired DE535838C (en) 1929-10-25 1929-10-26 Protective paper strips for film rolls for daylight charge

Country Status (1)

Country Link
DE (1) DE535838C (en)

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