METHOD FOR PRINTING A SECURITY ELEMENT AND SECURITY ELEMENT

The process involves printing a semi-transparent security unit (2) with variable optical ink on a base (1) of a substrate. The security unit is printed to cover the base. The semi-transparent security unit is printed by a serigraphy process. A sifter utilized in the serigraphy process comprises 180...

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Bibliographische Detailangaben
Hauptverfasser:	GIORI, FAUSTO, FORESTI, GIANFRANCO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BOOK COVERS BOOKBINDING COLOUR PRINTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES LINING MACHINES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES SPECIAL PRINTED MATTER STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	The process involves printing a semi-transparent security unit (2) with variable optical ink on a base (1) of a substrate. The security unit is printed to cover the base. The semi-transparent security unit is printed by a serigraphy process. A sifter utilized in the serigraphy process comprises 180 to 230 lines per inch according to X and Y directions of the sifter. An independent claim is also included for a value-paper.