METHOD FOR CURING OF AN INK OR TONER LAYER AND PRINTING SYSTEM WITH CURING UNIT

A method for curing of an actinic light sensitive ink or toner layer on a substrate comprising an irradiating step of irradiating the actinic light sensitive ink or toner layer, with a first radiation dose D1 in a first spectral range between 320 nm and 445 nm; followed by a second radiation dose D2...

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Bibliographische Detailangaben
Hauptverfasser:	DEPREZ, Lode Erik Dries, VAN DE STRAETE, Herman Jan Godelieve, LEUS, Wouter Bart Tinne, VERVOORT, Wout Victor Maria, HOREMANS, Nick
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY CINEMATOGRAPHY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CORRECTING FLUIDS CORRECTION OF TYPOGRAPHICAL ERRORS DYES ELECTROGRAPHY ELECTROPHOTOGRAPHY FILLING PASTES HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INKS LINING MACHINES MAGNETOGRAPHY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS POLISHES PRINTING 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 USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	A method for curing of an actinic light sensitive ink or toner layer on a substrate comprising an irradiating step of irradiating the actinic light sensitive ink or toner layer, with a first radiation dose D1 in a first spectral range between 320 nm and 445 nm; followed by a second radiation dose D2 in a second spectral range between 200 nm and 319 nm, wherein the ratio D1/D2 of the first radiation dose and the second radiation dose is between 0.25 and 500, more preferably between 0.25 and 200, even more preferably between 0.50 and 100. La présente invention concerne un procédé de durcissement d'une couche d'encre ou de toner sensible à la lumière actinique sur un substrat, comprenant une étape d'exposition à un rayonnement consistant à exposer la couche d'encre ou de toner sensible à la lumière actinique, à une première dose de rayonnement D1 dans une première plage spectrale comprise entre 320 nm et 445 nm ; suivie d'une seconde dose de rayonnement D2 dans une seconde plage spectrale comprise entre 200 nm et 319 nm, le rapport D1/D2 de la première dose de rayonnement et de la seconde dose de rayonnement étant compris entre 0,25 et 500, de préférence encore entre 0,25 et 200, de préférence encore entre 0,50 et 100.