| abstract |
The present invention provides a method for extracting a photocured material of a model material by immersing the photocured material of a model material and a support material in water with small swelling deformation due to water of the photocured material of the model material. As a layer formation on a modeling table, a model material is discharged from a printer head for a model material, and a dissolvable support material is discharged from a printer head for a support material by being immersed in water. By repeating this, it is a model material used in an inkjet optical modeling method for modeling a three-dimensional photocured product made of a model material, and a curable resin component having a weighted average SP value of 9.0 to 10.3 The water swell ratio of the photocured product comprising the model material is 1% by weight or less, and the curable resin component of the model material does not contain a monofunctional ethylenically unsaturated monomer (A) or a urethane group. A model material containing a functional ethylenically unsaturated monomer (B), a urethane-containing ethylenically unsaturated monomer (C) and a photopolymerization initiator (D). [Selection] Figure 1 |