AT35444B - Metal plates as a substitute for lithographic stones. - Google Patents

Metal plates as a substitute for lithographic stones.

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Publication number
AT35444B
AT35444B AT35444DA AT35444B AT 35444 B AT35444 B AT 35444B AT 35444D A AT35444D A AT 35444DA AT 35444 B AT35444 B AT 35444B
Authority
AT
Austria
Prior art keywords
substitute
metal plates
lithographic stones
lithographic
stones
Prior art date
Application number
Other languages
German (de)
Original Assignee
Jullien & Dessolle Fa
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 Jullien & Dessolle Fa filed Critical Jullien & Dessolle Fa
Application granted granted Critical
Publication of AT35444B publication Critical patent/AT35444B/en

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  • Printing Plates And Materials Therefor (AREA)

Description

  

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   Um einen Abklatsch auf einer solchen   elektrolytisohen Metallplatte herzustellen   muss man wie beim Steine die Oberfläche mit einer   Lösung   behandeln, die eine chemische Reaktion hervorruft, welche die Platte zur Herstellung einer grossen Anzahl von Abzügen fähig macht. 



  Diese Vorbehandlung besteht aufeinanderfolgend in 1. einem   sorgfältigen   Reinigen der Oberfläche mit reinem Alkohol, 2. dem Abklatschen des Abzuges in gleicher Art wie auf den Stein, 3. einem Waschen mit sehr   verdünnter,   mit pulverisiertem Kalziumkarbonat versetzten Salpeter-   säure   ; nach Ablauf von etwa zwei Minuten wird die Platte mit Wasser gewaschen, sodann kräftig   gummiert   und   trcr. knen gelassen,   4. dem Einschwärzen der Platte mit einer Handwalze, wie beim Stein. Man kann hernach noch etwas Talk und Harz in Pulverform unter Zusatz von wenig   amerikanischer   Potasche (Chilesalpeter) dem Waschwasser beigeben und endlich stark gummieren. 
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   Sobald dagegen solche Platten für einen neuen   Abklatsch wiederbenützt   werden sollen, ist es leicht, den alten Abklatsch zu entfernen ohne des kostspieligen Abkratzens, Durchpausens und Körnens zu bedürfen, wie dies für Stein und die bisher benützten Metalle der Fall ist.

   Man   verfährt   dann wie folgt : 1. die Schrift (Zeichnung) wird mittelst Terpentingeist gelöst, 2. die Platte   sorgfältig abgewaschen,   3. der Abklatsch mit Chilisalpeter in konzentrierter Lösung mittels eines Tampons unter Zugabe von   etwas Trippelerde,   um die Oberfläche nicht zu zerkratzen, 
 EMI2.3 
 mit   einssr vfrdünnten   Lösung von Schwefelsäure und schliesslich, wenn dies notwendig ist, noch mit einer Lösung von sehr   verdünntem     Kaliumbichromat abgewaschen.  



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   In order to make a copy on such an electrolytic metal plate, as with stone, the surface must be treated with a solution that causes a chemical reaction that makes the plate capable of making a large number of prints.



  This pretreatment consists in succession of 1. carefully cleaning the surface with pure alcohol, 2. pressing the trigger in the same way as on the stone, 3. washing with very dilute nitric acid mixed with powdered calcium carbonate; after about two minutes have elapsed, the plate is washed with water, then gummed vigorously and trcr. 4. the blackening of the plate with a hand roller, as with stone. You can then add some talc and resin in powder form with the addition of a little American potash (Chile's nitrate) to the washing water and finally give it a heavy gum.
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   On the other hand, as soon as such plates are to be reused for a new set, it is easy to remove the old set without the costly scraping, tracing and graining, as is the case with stone and the metals previously used.

   Then proceed as follows: 1. the writing (drawing) is loosened with turpentine spirit, 2. the plate is carefully washed off, 3. the impression with chilli nitrate in a concentrated solution using a tampon with the addition of a little triple earth so as not to scratch the surface,
 EMI2.3
 Washed off with a dilute solution of sulfuric acid and finally, if necessary, with a solution of very dilute potassium dichromate.

 

Claims (1)

PATENT-ANSPRUCH : Metallplatten als Ersatz für Lithographiesteine welche vorzugsweise auf elektrolytisc-henl Wege hergestellt und mit einem galvanischen Metallüberzug versehen sind, dadurch gekenn- EMI2.4 PATENT CLAIM: Metal plates as a substitute for lithographic stones, which are preferably manufactured by electrolytic methods and provided with a galvanic metal coating, thereby identified EMI2.4
AT35444D 1905-09-30 1905-09-30 Metal plates as a substitute for lithographic stones. AT35444B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT35444T 1905-09-30

Publications (1)

Publication Number Publication Date
AT35444B true AT35444B (en) 1908-12-10

Family

ID=3551980

Family Applications (1)

Application Number Title Priority Date Filing Date
AT35444D AT35444B (en) 1905-09-30 1905-09-30 Metal plates as a substitute for lithographic stones.

Country Status (1)

Country Link
AT (1) AT35444B (en)

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