PHOTOCURABLE SUPPORT MATERIAL COMPOSITION FOR INKJET 3D PRINTERS, INK FOR INKJET 3D PRINTERS, CARTRIDGE FOR INKJET 3D PRINTERS, METHOD FOR PRODUCING SUPPORT MATERIAL AND METHOD FOR PRODUCING OPTICALLY SHAPED ARTICLE

摘要

In the present invention, a photocurable support material composition for an inkjet 3D printer comprises a water-soluble ethylenically unsaturated monomer containing an ionic group and a counter ion, and comprises a photopolymerization initiator. The ionic group is preferably at least one selected from a group consisting of carboxylic acid group, phosphoric acid group, and sulfonic acid group. The counter ion is preferably at least one selected from a group consisting of sodium ion, potassium ion, and ammonium ion.