THREE-DIMENSIONAL MOLDING METHOD AND THREE-DIMENSIONAL MOLDED ARTICLE USING INKJET STEREOLITHOGRAPHIC DEVICE, AND PHOTOCURED PRODUCT OF MODELING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a modeling material for forming a stereolithographic article by an inkjet stereolithographic method, which shows extremely little swelling or moisture absorption deformation by water absorption or moisture absorption in a photocuring process and after curing, and to provide a three-dimensional molding method using an inkjet stereolithographic method, by which a photocured product of a support material has excellent solubility with water and is easily removed after stereolithography.SOLUTION: The three-dimensional molding method includes steps of: discharging a modeling material from a modeling material printer head and discharging a support material from a support material printer head, for forming a layer on a molding table, in which the modeling material used for forming the layer comprises a curable resin component having a weighted average of SP value of 9.0 to 10.3; repeating the step of forming a layer to complete molding of a molded article composed of the modeling material and the support material; and then immersing the molded article composed of the modeling material and the support material in water to remove a part composed of the support material from the molded article and to extract a three-dimensional model composed of the modeling material only.