DE406514C - Process for producing skin negatives that can be peeled off from the wearer - Google Patents

Process for producing skin negatives that can be peeled off from the wearer

Info

Publication number
DE406514C
DE406514C DEH86851D DEH0086851D DE406514C DE 406514 C DE406514 C DE 406514C DE H86851 D DEH86851 D DE H86851D DE H0086851 D DEH0086851 D DE H0086851D DE 406514 C DE406514 C DE 406514C
Authority
DE
Germany
Prior art keywords
negatives
peeled
wearer
producing skin
skin
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
DEH86851D
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 DEH86851D priority Critical patent/DE406514C/en
Application granted granted Critical
Publication of DE406514C publication Critical patent/DE406514C/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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/047—Proteins, e.g. gelatine derivatives; Hydrolysis or extraction products of proteins

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Description

Verfahren zur Erzeugung von vom Träger abziehbaren Hautnegativen. Die Erfindung bezieht sich auf die Herstellung von vom Träger abziehbaren Hautnegativen auch nach Originalen, die ein Durchlichten nicht gestatten, und die Erfindung besteht in der Herstellung der lichtempfindlichen Schicht, durch welche besonders klare ungefärbte Strichbilder erhalten werden. Diese Negativhäute können als Vorlagen für Druckformen zum direkten oder indirekten Druck verwendet werden.Process for producing skin negatives which can be peeled off from the support. The invention relates to the manufacture of peelable skin negatives even for originals that do not allow transparency and the invention exists in the production of the photosensitive layer, through which particularly clear uncolored line images can be obtained. These negative skins can be used as templates can be used for printing forms for direct or indirect printing.

Zur Herstellung der lichtempfindlichen Schicht nach der Erfindung wird in Wasser gelöste Gelatine mit Eisenchlorid, Zitronensäure, Fischleim, doppelchromsauretn Aminonium und Formaldehyd versetzt.For producing the photosensitive layer according to the invention is gelatin dissolved in water with ferric chloride, citric acid, isinglass, doppelchromsauretn Aminonium and formaldehyde added.

Bei der Ausführung des Verfahrens verfährt man zweckmäßig wie folgt: Kautschuk wird in Chloroform und Benzin aufgelöst und mit dieser Lösung eine transparente Platte übergossen. Darauf folgt ein Kollodiumaufguß, welcher nach dem Trocknen mit der lichtempfindlichen Masse präpariert wird. Diese besteht z. B. aus: Wasser 2ooo g, Gelatine r2o g, Eisenchlorid 4g, Zitronensäure 3 g, Fischleim 8 g, doppelchromsaurem Ammonium 18,-, Formaldehyd 2-. Gegen die in dieser Weise vorbereitete Plattenseite wird die zu vervielfältigende Vorlage in einen Kopierrahmen o. dgl. gepreßt und durch das von ihr reflektierte Licht auf die Platte kopiert. Nach dem Entwickeln werden die durch die Belichtung unlöslich gemachten Stellen der lichtempfindlichen Schicht in beliebiger Weise, zweckmäßig aber durch Anilinfarbe, lichtundurchlässig gemacht und dann mit Hilfe des pneumatischen Kopierrahmens o. dgl. direkt auf die Maschinenplatte der Offsetmaschine oder den lithographischen Maschinenstein durch Belichtung kopiert.When carrying out the process, it is expedient to proceed as follows: rubber is dissolved in chloroform and gasoline and this solution is poured over a transparent plate. This is followed by a collodion infusion which, after drying, is prepared with the photosensitive mass. This consists z. B. from: water 2ooo g, gelatine r2o g, iron chloride 4g, citric acid 3 g, isinglass 8 g, double chromic ammonium 18, -, formaldehyde 2-. Against the plate side prepared in this way, the original to be reproduced is pressed into a copier frame or the like and copied onto the plate by the light reflected by it. After development, the areas of the photosensitive layer made insoluble by exposure are made opaque in any way, but expediently by aniline dye, and then copied directly onto the machine plate of the offset machine or the lithographic machine stone by exposure using the pneumatic copier frame or the like.

Claims (1)

PATENT-ANSPRUCI'I: Verfahren zur Erzeugung von vom Träger abziehbaren Hautnegativen, dadurch gekennzeichnet, elaß zur Herstellung der lichtempfindlichen Schicht in Wasser gelöste Gelatine mit Eisenchlorid, Zitronensäure, Fischleim, doppelchromsaurem Ammonium und Formaldehyd versetzt wird.PATENT-ANSPRUCI'I: Process for the production of removable from the carrier Skin negatives, characterized in that they are used to produce the light-sensitive ones Layer of gelatin dissolved in water with ferric chloride, citric acid, isinglass, double chromic acid Ammonium and formaldehyde are added.
DEH86851D 1921-08-31 1921-08-31 Process for producing skin negatives that can be peeled off from the wearer Expired DE406514C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH86851D DE406514C (en) 1921-08-31 1921-08-31 Process for producing skin negatives that can be peeled off from the wearer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH86851D DE406514C (en) 1921-08-31 1921-08-31 Process for producing skin negatives that can be peeled off from the wearer

Publications (1)

Publication Number Publication Date
DE406514C true DE406514C (en) 1924-11-21

Family

ID=7164798

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH86851D Expired DE406514C (en) 1921-08-31 1921-08-31 Process for producing skin negatives that can be peeled off from the wearer

Country Status (1)

Country Link
DE (1) DE406514C (en)

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