DE347826C - Process for the production of a stamp color suitable for documents - Google Patents

Process for the production of a stamp color suitable for documents

Info

Publication number
DE347826C
DE347826C DE1920347826D DE347826DD DE347826C DE 347826 C DE347826 C DE 347826C DE 1920347826 D DE1920347826 D DE 1920347826D DE 347826D D DE347826D D DE 347826DD DE 347826 C DE347826 C DE 347826C
Authority
DE
Germany
Prior art keywords
documents
production
black
stamp
color suitable
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
DE1920347826D
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.)
JOH SCHIFFMANN DR
Original Assignee
JOH SCHIFFMANN DR
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 JOH SCHIFFMANN DR filed Critical JOH SCHIFFMANN DR
Application granted granted Critical
Publication of DE347826C publication Critical patent/DE347826C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/02Printing inks

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

Verfahren zur Herstellung einer für Urkunden geeigneten Stempelfarbe. Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Luft- und lichtechten, wasserfesten Stempelfarben, die insbesondere für behördliche Urkunden geeignet sind, und besteht im wesentlichen darin, daß man alkohollösliches basisches Anilinschwarz (sogenanntes Lackschwarz) mit gallusgerbsauren Eisensalzen mischt und das Gemisch in Acetin löst und in die Lösung noch Ruß verrührt.Process for the production of a stamp ink suitable for documents. The invention relates to a process for the production of air and lightfast, waterproof stamp inks, which are particularly suitable for official documents, and consists essentially in using alcohol-soluble basic aniline black (so-called black lacquer) mixes with gallic iron salts and the mixture dissolves in acetin and stirs soot into the solution.

Die Benutzung von Acetin zur Lösung gewisser Teerfarbstoffe bei der Herstellung von Buntdruck in der Textilindustrie ist bekannt. Indessen hat man sich zur Herstellung von Stempelfarbe, wie sie für Metall-, Kautschukstempel oder Schreibmaschinen benötigt wird, dieses Lösungsmittels bisher noch nicht bedient.The use of acetin to dissolve certain tar pigments in the The production of color printing in the textile industry is known. Meanwhile one has for the production of stamping inks, such as those used for metal, rubber stamps or typewriters is required, this solvent has not yet been used.

Die bisherigen Farben sind, soweit sie für Metallstempel bestimmt sind, mit Ruß verriebene Öle, im übrigen, soweit sie für Kautschukstempel bestimmt sind, Anilinschw arz in wäßriger Glyzerinlösung. Mit Metallstempel kann man bei Benutzung der alten Ölfarbe selten einen scharfen Abdruck erzielen, auch verwischt sich letzterer leicht, weil die Farbe schwer eintrocknet. Die mit Kautschukstempel ausgeführten Abdrücke sind niemals tief= schwarz, sondern meistens von blauvioletter oder grauer Farbe, sind weder licht- noch luftecht und lassen sich mit Leichtigkeit spurlos aus dem Papier entfernen. Die Mängel fallen um so mehr ins Gewicht, weil gerade der Kautschukstempel wegen seiner leichten Handhabung allgemein von Behörden benutzt wird. -In Ausführung des neuen Verfahrens werden beispielsweise zoo Teile von alkohollöslichem Anilinschwarz mit etwa 25 Teilen gallusgerbsaurem Eisenoxyd vermischt, und dieses Gemisch wird in der Wärme mit etwa Zoo Teilen Acetin gelöst. Vorteilhaft setzt man der Lösung noch geringe Mengen von Ruß zu.The previous colors are, as far as they are intended for metal stamps are oils rubbed with soot, otherwise as far as they are intended for rubber stamps are, aniline black in aqueous glycerine solution. With a metal stamp you can at Using the old oil paint seldom achieves a sharp imprint, even blurred the latter is easy because the paint is difficult to dry up. The one with rubber stamp The prints made are never deep = black, but mostly blue-violet or gray in color, are neither light nor airfast and can be easily adjusted Remove from the paper without a trace. The shortcomings are all the more significant because especially the rubber stamp because of its easy handling in general by authorities is used. -In the execution of the new procedure, for example, zoo parts of alcohol-soluble aniline black with about 25 parts of gallic iron oxide mixed, and this mixture is dissolved in the heat with about zoo parts of acetin. It is advantageous to add small amounts of carbon black to the solution.

Die so hergestellte Farbe ist für Metall-und Kautschukstempel verwendbar, luft- und lichtecht und wasserbeständig. Die mit ihr hergestellten Abdrücke sind tiefschwarz, trocknen schnell ein und lassen sich weder mechanisch noch chemisch entfernen, ohne sichtbare Spuren der Behandlung zu hinterlassen. Die Farbe ist deshalb besonders zum Stempeln wichtiger Schriftstücke, wie Urkunden jeder Art, zu verwenden.The color produced in this way can be used for metal and rubber stamps, air and lightfast and water resistant. The impressions made with it are deep black, dry quickly and cannot be removed mechanically or chemically remove without leaving any visible traces of treatment. The color is therefore to be used especially for stamping important documents, such as documents of all kinds.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von für Urkunden geeigneten Stempelfarben, dadurch gekennzeichnet, daß- man alkohollösliches Anilinschwarz (sogenanntes Lackschwarz) mit gerbsauren Eisensalzen mischt und das Gemisch in der Wärme in Aoetin löst, worauf der Lösung noch Ruß hinzugefügt wird.PATENT CLAIM: Process for the production of documents suitable for documents Stamp inks, characterized in that alcohol-soluble aniline black (so-called Black lacquer) mixes with tannic acid iron salts and the mixture in the heat in aoetin dissolves, whereupon carbon black is added to the solution.
DE1920347826D 1920-05-05 1920-05-05 Process for the production of a stamp color suitable for documents Expired DE347826C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE347826T 1920-05-05

Publications (1)

Publication Number Publication Date
DE347826C true DE347826C (en) 1922-01-25

Family

ID=6256654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920347826D Expired DE347826C (en) 1920-05-05 1920-05-05 Process for the production of a stamp color suitable for documents

Country Status (1)

Country Link
DE (1) DE347826C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965492C (en) * 1953-11-01 1957-06-13 Staedtler Fa J S Forgery-proof stamp and marking inks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965492C (en) * 1953-11-01 1957-06-13 Staedtler Fa J S Forgery-proof stamp and marking inks

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