LUMINESCENT COMPOUND FOR MARKING AND IDENTIFICATION OF MARKING OF DOCUMENT BY MEANS OF THIS COMPOUND

FIELD: estimation of authenticity of documents, excise brands, bank-notes and securities. ^ SUBSTANCE: proposed compound is prepared by mixing gadolinium oxysulfide activated by terbium and yttrium oxysulfide activated by ytterbium and erbium. Size of crystal particles of said luminophores does not...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GOLOVACH O.S, VLASOV A.A, SHCHERBAKOV V.A, SOKOLOV V.N, FESENKO A.V
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ADHESIVES CHECKING-DEVICES CHEMISTRY DYES HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PHYSICS POLISHES
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