| http://www.w3.org/ns/prov#value | - The ink according to claim 1, wherein said initiator is a photoinitiator or a mixture of bis(2,6-dimethoxybenzoyl)2,4,4-trimethyl-pentylphosphine oxide and 1-hydroxy-cyclohexyl-phenylketone (IRGACURE 1800) or bis(2,4,6-trimethylbenzoyl)phenylphospineoxide (IRGACURE 819).
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