DEVICE FOR HARDENING UV INK ON A PRINTING SUBSTRATE

The invention relates to a device for curing UV inks on a substrate, comprising a plurality of radiators (12) designed as UV-LED radiation sources (12). The device comprises a plurality M2 of optical elements (15) which are designed and arranged in such a way that the respective maximum emission ang...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Hauptmann, Dr. Gerald, Korkut Punckt, Dr. Sibel, Hachmann, Dr. Peter
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL COLOUR PRINTING CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PRINTING PRINTING MACHINES OR PRESSES PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SELECTIVE PRINTING MECHANISMS SPRAYING OR ATOMISING IN GENERAL STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	The invention relates to a device for curing UV inks on a substrate, comprising a plurality of radiators (12) designed as UV-LED radiation sources (12). The device comprises a plurality M2 of optical elements (15) which are designed and arranged in such a way that the respective maximum emission angle [alpha] max of the radiator is limited to [alpha] max < = 30 DEG. The invention is advantageous in that undesired matting effects are reduced or even prevented.