Resin composition for model material, ink set for stereolithography, and method for producing stereolithography product

摘要

A resin composition 4a for a model material used for modeling a model material 4 by an ink jet optical modeling method, wherein (A) an ethylenically unsaturated monomer as a photocuring component and (B) photopolymerization start The surface tension Mt is 26.0 to 33.0 mN / m, and the surface tension Mst represented by the following formula (i) is 33.0 mN / m. The resin composition 4a for model material which is the above. This resin composition 4a for model materials can obtain a stereolithography product with good dimensional accuracy. [Expression 1]