Flexible, scratch resistant radiation curable inkjet inks

A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds including a) no more than 15 wt% of one or more monofunctional acrylates wherein the homopolymer thereof has a T smaller than 20°C; and b) at least 45 wt% of a mixture of monomers consisting of b1) 10...

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1. Verfasser: HOOGMARTENS, IVAN
Format: Patent
Sprache:eng
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Zusammenfassung:A free radical radiation curable inkjet ink containing a photoinitiator and polymerizable compounds including a) no more than 15 wt% of one or more monofunctional acrylates wherein the homopolymer thereof has a T smaller than 20°C; and b) at least 45 wt% of a mixture of monomers consisting of b1) 10 to 45 wt% of a N-vinyl lactam and/or a vinylether acrylate; and b2) 10 to 45 wt% of an ethoxylated and/or propoxylated polyacrylate having a molecular weight of at least 450; wherein all wt% are based on the total weight of the inkjet ink; and wherein the T is determined by the DSC method in ISO 11357-2:1999. An inkjet printing method is also disclosed.