METHOD OF MANUFACTURING FALSIFICATION-PROTECTED SECURITIES, AND FALSIFICATION-PROTECTED SECURITY

FIELD: falsification protection. ^ SUBSTANCE: invention relates to manufacturing paper documents and other paper produce protected against falsification, in particular against etching of text. Method comprises preparing paper pulp and dosing paste containing substance protecting paper against etchin...

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Bibliographische Detailangaben
Hauptverfasser:	DUNJATKIN E.M, GONCHAROV M.I, FROLOV M.V, IVANOV G.E
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BOOK COVERS BOOKBINDING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES IMPREGNATING OR COATING OF PAPER LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRODUCTION OF CELLULOSE PULP COMPOSITIONS SPECIAL PRINTED MATTER TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	FIELD: falsification protection. ^ SUBSTANCE: invention relates to manufacturing paper documents and other paper produce protected against falsification, in particular against etching of text. Method comprises preparing paper pulp and dosing paste containing substance protecting paper against etching of text with organic solvent, glycerol or sodium-carboxymethylcellulose, and sodium lauryl ethyl sulfosuccinate, said protective substance being selected from 1,5-di-p-tolydineoantraquinone, 1,4-di-p-tolydineoantraquinone, and their mixture with alcohol-soluble violet dye. Thereafter, paper is manufactured and impregnated with aqueous solution of binder followed by drying and treatment. Before impregnation, to binder is added indicator composition based of diphenylguanidine salt supplemented by indicator additives changing their color upon interaction with inorganic reagents. ^ EFFECT: simplified procedure and ensured protection against etching by various-nature substances. ^ 4 cl, 4 ex