DE331622C - Process for the production of a chemically indestructible ink font - Google Patents

Process for the production of a chemically indestructible ink font

Info

Publication number
DE331622C
DE331622C DE1920331622D DE331622DD DE331622C DE 331622 C DE331622 C DE 331622C DE 1920331622 D DE1920331622 D DE 1920331622D DE 331622D D DE331622D D DE 331622DD DE 331622 C DE331622 C DE 331622C
Authority
DE
Germany
Prior art keywords
indestructible
chemically
production
ink
ink font
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
DE1920331622D
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.)
HEINRICH GETHE
Original Assignee
HEINRICH GETHE
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 HEINRICH GETHE filed Critical HEINRICH GETHE
Application granted granted Critical
Publication of DE331622C publication Critical patent/DE331622C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D11/00—Inks
    • C09D11/16—Writing 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)
  • Printing Methods (AREA)

Description

Verfahren zur Herstellung einer chemisch unzerstörbaren Tintenschrift. Bei Urkunden, Verträgen und im Scheckverkehr ist eine unbedingt unzerstörbare Tintenschrift erforderlich. Die im Gebrauch befindlichen Schreibtinten genügen in keiner Weise, da dieselben sich .so zerstören lassen, daß die Schriftstücke, die mit solcher Tinte geschrieben sind, sich vollkommen, ohne einen Rückstand auf dem Papier zu hinterlassen, entfernt werden können.Process for the production of a chemically indestructible ink font. An indestructible ink font is absolutely indestructible for documents, contracts and checks necessary. The writing inks currently in use are in no way sufficient since they can be so destroyed that the documents written with such ink are written, completely, without leaving a residue on the paper, can be removed.

Gegenstand der Erfindung ist _ nun ein Verfahren zur Herstellung einer unzerstörbaren Tinte, die gewährleistet, daß damit hergestellte Schriftstücke gegen Fälschung sichergestellt sind. Die technische Eigenart der Tinte liegt insbesondere darin, daß alle bekannten Bleich-und Oxydationsmittel, die zur chemischen Entfernung der Schriftzüge angewendet werden, nur eine Farbenänderung der Schriftzüge-hervorzurufen vermögen; die Schrift selbst ist im Gegensatz zu den bekannten Farbholztinten, Anilintinten, und Metallsalztinten, die sich sämtlich vom Papier entfernen lassen, chemisch ungntfernbar.The invention now relates to a method for producing a indestructible ink, which ensures that documents produced with it against Forgery are ensured. The technical nature of the ink lies in particular in that all known bleaching and oxidizing agents that are used for chemical removal of the lettering can only be used to cause a change in the color of the lettering capital; the writing itself is in contrast to the well-known colored wood inks, aniline inks, and metal salt inks, all of which are removable from paper, chemically non-removable.

Beispiel. Die bekannten Tintenfarbstoffe, z. B. Farbholzextrakt 25 g, Anilinfarbstoff 9 g (wasserlöslich), Blutlaugensalz 1,5 g, Pyrgallsäure i,5 -g und eine beliebige Eisenverbindung, werden in 5oo g Kobaltsulfatwasser flüssig gemacht und. filtriert.Example. The known ink dyes, e.g. B. Dye wood extract 25 g, aniline dye 9 g (water-soluble), blood liquor salt 1.5 g, pyrgallic acid i, 5 -g and any iron compound, are made liquid in 500 g cobalt sulfate water and. filtered.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung chemisch unzerstörbarer Tinte aus gewöhnlicher Schreibtinte, dadurch gekennzeichnet, daß diese einen Zusatz von Blutlaugensalä erhält. PATENT CLAIM: Process for the production of chemically indestructible ink from ordinary writing ink, characterized in that it contains an addition of blood liquor saline.
DE1920331622D 1920-03-25 1920-03-25 Process for the production of a chemically indestructible ink font Expired DE331622C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE331622T 1920-03-25

Publications (1)

Publication Number Publication Date
DE331622C true DE331622C (en) 1921-01-07

Family

ID=6198098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920331622D Expired DE331622C (en) 1920-03-25 1920-03-25 Process for the production of a chemically indestructible ink font

Country Status (1)

Country Link
DE (1) DE331622C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629671A (en) * 1947-08-16 1953-02-24 Eastman Kodak Co Photothermography, printing sheet and printing ink therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629671A (en) * 1947-08-16 1953-02-24 Eastman Kodak Co Photothermography, printing sheet and printing ink therefor

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