ACTIVE-ENERGY-RAY-CURABLE INK COMPOSITION AND PRINTED OBJECT USING SAID INK COMPOSITION
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United States of America Patent
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Issued Date -
Jan 15, 2015
app pub date -
Jan 11, 2013
filing date -
Jan 12, 2012
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Abstract
Provided is an ink composition having excellent conformability even to a flexible base material to be printed. This active-energy-ray-curable ink composition comprises active-energy-ray-polymerizable monomers and an active-energy-ray polymerization initiator. The active-energy-ray-polymerizable monomers include: monomer A which is a monofunctional monomer having a glass transition point of −30° C. or lower; and monomer B which is a polyfunctional monomer having a glass transition point of 0° C. or lower. Preferably, said monomer B is a bifunctional monomer having a glass transition point of −30° C. or lower. Preferably, the active-energy-ray-polymerizable monomers further include monomer C which is a monofunctional monomer having an alicyclic structure with a glass transition point between 0-110° C. inclusive. The ink composition may also include a colorant.
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