PHOTOCURABLE WHITE INK COMPOSITION AND CURED PRODUCT THEREOF

摘要

This invention provides a photocurable white ink composition comprising (A) titanium oxide having an average primary particle diameter of 0.05 to 0.25 µm and subjected to weathering resistance imparting treatment, (B) a polyfunctional acryloyl monomer, (C-1) an ether bond-containing monofunctional acryloyl monomer and/or (C-2) a primary hydroxyl group-containing monofunctional acryloyl monomer, and (D) a photopolymerization initiator. The photocurable white ink composition has excellent tinting power, is less likely to cause settling of the pigment, and has excellent photocurability and thus is useful as a photocurable white ink composition for on-demand-type piezo ink jet printing.