DE630068C - Security paper - Google Patents
Security paperInfo
- Publication number
- DE630068C DE630068C DEP64210D DEP0064210D DE630068C DE 630068 C DE630068 C DE 630068C DE P64210 D DEP64210 D DE P64210D DE P0064210 D DEP0064210 D DE P0064210D DE 630068 C DE630068 C DE 630068C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- paper
- manganese
- security paper
- added
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
Landscapes
- Paper (AREA)
Description
Sicherheitspapier Gegenstand der Erfindung ist ein Sicherheitspapier, wie es beispielsweise zur Herstellung von Schecks, Kreditbriefen, Sparkassenbüchern, Wechselblanketten und anderen Gegenständen benutzt werden kann, bei denen eine besonders große Sicherheit gegen Fälschungen, insbesondere der mit Tinte ausgeführten In- oder Unterschriften, verlangt wird.Security paper The subject of the invention is a security paper, such as for the production of checks, letters of credit, savings bank books, Interchangeable blank chains and other items can be used where one special great security against counterfeiting, especially those made with ink or signatures, is required.
Bei derartigen Sicherheitspapieren kommt es darauf an, daß die Masse des Papierstoffs durch und durch mit solchen Substanzen versetzt ist, die bei der geringsten Behandlung mit Säuren oder Alkalien, mit Oxydationsmitteln, wie z. B. Kaliumpermanganat, aktivem Chlor, als auch Reduktionsmitteln, wie schweflige Säure oder schwefligsaure Salze in Verbindung mit mehr oder weniger starken Säuren so empfindliche Färbungen oder Veränderungen im Papier hinterlassen, daß diese nicht wieder in den ursprünglichen Zustand zurückgebracht werden können.With such security papers it is important that the mass of the paper stock is mixed through and through with such substances that in the slightest treatment with acids or alkalis, with oxidizing agents such. B. Potassium permanganate, active chlorine, as well as reducing agents such as sulphurous acid or sulfuric acid salts in connection with more or less strong acids like this Sensitive coloring or changes in the paper do not leave them behind can be returned to their original condition.
Weiter ist von ausschlaggebender Bedeutung, daß solche Papiere in der Masse derartige Stoffe enthalten, die durch Wasser, Extraktions- oder auch andere Lösungsmittel nicht wieder zu entfernen sind.It is also of crucial importance that such papers are in the mass contain such substances by water, extraction or other Solvents cannot be removed again.
Für Sicherheitspapiere sind Eisenverbindungen und Mangansalze in Verbindung mit Eisensalzen, insbesondere den Cyaniden, bereits vorgeschlagen oder gebraucht worden. Es kommen hierfür vornehmlich Manganeisencyanid, gelbes Blutlaugensalz, Mangansulfat, Manganchlorür,, Kobaltsalze und Nickelsalze in Frage.For security papers, iron compounds and manganese salts are used in conjunction with iron salts, especially the cyanides, already proposed or used been. This is mainly done with manganese iron cyanide, yellow blood liquor salt, Manganese sulphate, manganese chloride, cobalt salts and nickel salts in question.
Das Sicherheitspapier gemäß der Erfindung enthält neben derartigen Eisencyaniden, wie Eisenmangancyanid o. dgl., metallisches Eisen in reaktionsförmiger fein pulvriger Form. Das Eisen wird zweckmäßig in bekannter Weise der Papiermasse im Holländer zugesetzt.The security paper according to the invention contains in addition to such Iron cyanides, such as iron mangancyanide or the like, metallic iron in reactive form finely powdered form. The iron is expediently added to the paper pulp in a known manner added in the Dutch.
Es ist bereits vorgeschlagen @ worden, fein pulvrisiertes, vernickeltes Eisen im Holländer der Papiermasse zuzusetzen, zum Zwecke, ein Papier zu erzeugen, das auf Elektromagnete reagiert. Die Vernickelung hatte den Zweck, die Eisenkörnchen gegen chemische Angriffe zu schützen. .It has already been suggested @, finely powdered, nickel-plated To add iron in the dutchman to the paper pulp, for the purpose of producing a paper, that reacts to electromagnets. The purpose of the nickel plating was the iron granules protect against chemical attacks. .
Es ist ferner vorgeschlagen worden, bei der Herstellungvori Sicherheitspapieren neben Eisenmangancyanid zum Papierbrei einen Zusatz von Eisenhydroxyd (Eisensesquioxydhydrat) zu machen. Derartige Papiere zeigen infolge des Eisenhydroxydzusatzes einen gelben Farbton und sind gegen die bekannten von den Fälschern angewendeten Reagenzien nicht so empfindlich wie das Papier gemäß der Erfindung.It has also been proposed to use security papers in the manufacture In addition to iron mangancyanide, iron hydroxide (iron sesquioxide hydrate) is added to the paper pulp close. Such papers show a yellow color as a result of the addition of iron hydroxide Shade and are not against the known reagents used by counterfeiters as sensitive as the paper according to the invention.
Das reaktionsfähige fein pulvrige Eisen in dem Papier gemäß der Erfindung
ist punktförmig fein im Papier verteilt und kann bei genauer Betrachtung, z. B.
im durchscheinenden Licht, mit der Lupe oder auch schon mit bloßem Auge
erkannt
werden. Wenn nun ein Papier gemäß der Erfindün2 der Einwirkünz der bekannten
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP64210D DE630068C (en) | 1931-11-11 | 1931-11-11 | Security paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP64210D DE630068C (en) | 1931-11-11 | 1931-11-11 | Security paper |
Publications (1)
Publication Number | Publication Date |
---|---|
DE630068C true DE630068C (en) | 1936-05-19 |
Family
ID=7390351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP64210D Expired DE630068C (en) | 1931-11-11 | 1931-11-11 | Security paper |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE630068C (en) |
-
1931
- 1931-11-11 DE DEP64210D patent/DE630068C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3122470C2 (en) | Security paper and process for making the same | |
DE2747349C2 (en) | Counterfeit-proof paper and process for its manufacture | |
DE630068C (en) | Security paper | |
DE497037C (en) | Process for producing a labeled paper | |
DE68909205T2 (en) | Non-fluorescent, non-counterfeit security paper and document received. | |
DE1267961B (en) | Self-image-providing paper or other sheet material that can be activated by pressure | |
DE1472752C3 (en) | Developer concentrate | |
DE660599C (en) | Process for the production of security paper | |
DE69204946T2 (en) | System for the reversible checking of security paper for authenticity. | |
DE635442C (en) | Process for the production of security paper | |
DE669997C (en) | Process for the production of security paper | |
DE69421965T2 (en) | Anti-counterfeiting sheet and anti-counterfeiting document made from it | |
DE402727C (en) | Manufacture of a printing ink that reacts to counterfeiting | |
DE337818C (en) | Process for the inconspicuous marking of banknotes, securities, documents and other objects | |
DE2002931C3 (en) | Process for the production of paper with fluorescent properties | |
DE922390C (en) | Light-sensitive layer for the diazotype process | |
CH194466A (en) | Fibrous product with secret identification, in particular secret paper, and process for the production thereof. | |
AT82499B (en) | Process for dyeing paper in bulk with insoluble artificial dyes. | |
DE558492C (en) | Process for the production of mixed crystal dyes | |
AT157115B (en) | Security paper. | |
DE42260C (en) | Manufacture of security paper | |
AT370150B (en) | COUNTERFEIT-PROOF PAPER | |
DE427246C (en) | Process for the production of azo dyes | |
DE673978C (en) | Process for the production of security paper | |
DE189488C (en) |