METHOD FOR IRIS PRINTING

printing arts, in particular, polygraphic methods for protection of documents. SUBSTANCE: due to a definite relative position of the printing rollers of the ink feed system a curvilinear color separation boundary is formed, which after a revolution of the impression rollers is reproduced on the form...

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Bibliographische Detailangaben
Hauptverfasser:	CHERNYSHEV L.F, SANDER E.A
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	COLOUR PRINTING LINING MACHINES PERFORMING OPERATIONS PRINTING PRINTING MACHINES OR PRESSES PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	printing arts, in particular, polygraphic methods for protection of documents. SUBSTANCE: due to a definite relative position of the printing rollers of the ink feed system a curvilinear color separation boundary is formed, which after a revolution of the impression rollers is reproduced on the form cylinder and further on the sealed up material. EFFECT: enhanced level of protection of documents. 4 dwg