Agfa Nv

Marc Graindourze

Rita Torfs

Jens Lenaerts

Rene Geelen

Jürgen Jung

Eugenie Icart

A UV curable pigmented inkjet ink set comprising: one or more achromatic colour inkjet inks including a black inkjet ink containing a carbon black pigment; and five chromatic colour inkjet inks including: a first inkjet ink WR having a hue angle H* between 10° and 40° and a chroma C* between 30 and 80; a second inkjet ink WY having a hue angle H* between 65° and 85° and a chroma C* between 30 and 80; a third inkjet ink Y having a hue angle H* between 85° and 105° and a chroma C* larger than 80; a fourth inkjet ink C having a hue angle H* between 180° and 240° and a chroma C* between 30 and 80; and a fifth inkjet ink M having a hue angle H* between 300° and 360° and a chroma C* between 30 and 80; wherein the hue angle H* and the chroma C* were calculated from CIE L*a*b* coordinates determined on a polyethylene coated white paper for a 2° observer under a D50 light source; wherein the chromatic colour inkjet inks having a hue angle H* between 180° and 360° have a ratio T/P of thioxanthone compound to pigment complying with the relationship: 0.0≤T/P≤0.2, wherein T represents the wt % of thioxanthone compound and P represents the wt % of pigment, both wt % based on the total weight of the inkjet ink.

UV curable inkjet ink sets and inkjet printing methods

An inkjet ink set consisting of a black inkjet ink, a cyan inkjet ink and two inkjet inks A and B, optionally complemented by a white ink and/or a colourless ink, wherein the inkjet ink A has a hue angle H* between 70 and 85 and a chroma C* between 30 and 80; the inkjet ink B has a hue angle H* between 20 and 40 and a chroma C* between 30 and 80; and the CIE L* a* b* coordinates were determined on polyethylene coated white paper for a 2&#xb0; observer under a D50 light source.

Inkjet printing of wood colours

A method for authenticating a product packaging includes reading a printed optical-machine-readable-code on the product packaging using a mobile device, determining if the printed optical-machine-readable-code includes a command for reading an RFID, and executing the command on the mobile device for reading the RFID, wherein the printed optical-machine-readable-code and the RFID are positioned at the same location on the product packaging.

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Mortsel, Belgium

Marc Graindourze