| abstract |
An ink jet ink that includes a photopolymerizable material, a pigment, and a liquid blend of (a) oligo [2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propanone] (b) 4-methylbenzophenonone (c) 2,4,6-trimethylbenzophenone (d) 2,4,6-trimethylbenzoyldiphenylphosphine oxide, (e) phenyl-bis-(2,4,6-trimethylbenzoyl)phosphine oxide, and (f) 2-hydroxy-2-methyl-1-phenylpropanone can be cured by either a xenon flash lamp or a mercury vapor lamp, with excellent adhesion over vinyl substrates. |