Ultrasonic bonding of security device to a substrate to prevent harvesting

A security document (200) includes a substrate (205) having a first surface and a second surface opposite to the first surface, the first surface having a cellulosic material. The security document further includes an optical security device (220) having optical indicia of authenticity of the securi...

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Bibliographische Detailangaben
Hauptverfasser:	ZIEGLER, Eric M, SUBRAMANIAN, Pazam
Format:	Patent
Sprache:	eng
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:	A security document (200) includes a substrate (205) having a first surface and a second surface opposite to the first surface, the first surface having a cellulosic material. The security document further includes an optical security device (220) having optical indicia of authenticity of the security document and a third surface, the third surface having a thermoplastic polymer. The security document also includes an ultrasonic weld (225) forming a bond between a section of the first surface and a section of the third surface.