Excellent adhesion to non absorbent substrates can be achieved using cationic curing ink compositions, due in part to low shrinkage upon curing, but can suffer from some limitations such as flexibility. A composition is described that exhibits excellent cure, flexibility and adhesiveness to the recording media. An ink composition described, contains a compound (II), and at least one of an oxirane or vinyl ether compound as the cationic monomers.
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