INK COMPOSITION AND DECORATIVE SHEET PRODUCED USING SAME

摘要

Provided is an ink composition for use in the formation of a decorative sheet, which can impart high hardness to a decorative molded article, can also impart moldability required for forming a molded article having a more complicated shape, and enables the formation of a tuck-free hardcoat-layer-forming layer merely by thermal drying if necessary. This ink composition comprises: a polyfunctional radical-polymerizable prepolymer having at least one ionizing-radiation-curable functional group (A) selected from the group consisting of a vinyl group, a (meth)acryloyl group and an allyl group and having a weight average molecular weight of 50000 or more; reactive inorganic particles each having an ionizing-radiation-curable functional group (B) on the surface thereof; and a polyfunctional isocyanate compound.