| 摘要 |
PURPOSE:To obtain an ink composition capable of direct printing and multiply superposed printing on a base substrate and being removed easily from the recovered distributed products by an aqueous alkaline solution. CONSTITUTION:This radiation curing ink composition comprises blending a vehicle containing (A) an oligomer and/or a polymer having the backbone of a linear polyester and 1-10 unsaturated double bonds in a molecule, (B) >=1 carboxylic acid having at least one acid group and 1-10 unsaturated double bonds in a molecule, and/or >=1 carboxylic acid ester, and/or >=1 carboxylic acid amide with a photopolymerization initiator, a photosensitizer and an organic and/or inorganic pigment at need. |
