Method for producing three-dimensional manufactured product

A method for producing a three-dimensional manufactured product, the method comprising:

• a shaping step of digitizing and ordinating a height direction of a three-dimensional object and generating two-dimensional shape data indicating a cross-sectional shape of the three-dimensional object at each ordinated height, based on three-dimensional shape data indicating a shape of the three-dimensional object, and sequentially forming and stacking manufactured layers each having a shape corresponding to the two-dimensional shape at each height based on the two-dimensional shape data, according to the order of the ordinating, using a vat photopolymerization process wherein a predetermined position of a liquid photocurable resin composition held in a vat is irradiated with activating light being ultraviolet light or visible light to selectively cure the liquid photocurable resin composition present in the position, to obtain a shaped product comprising a cured product of the liquid photocurable resin composition having a shape corresponding to the shape of the three-dimensional object;
• and
• a post-polymerization step of polymerizing an unpolymerized component comprised in the shaped product,
• wherein the liquid photocurable resin composition comprises:
• 100 parts by mass of a radically-polymerizable monomer (a);
• 100 to 200 parts by mass of an inorganic filler (b);
• 0.05 to 10.0 parts by mass of a photopolymerization initiator (c) that absorbs the activating light to generate a radical;
• 0.01 to 2.7 parts by mass of an activating light absorbent (d) that absorbs the activating light;
• and
• 0.01 to 5.0 parts by mass of a polymerization inhibitor (e), and
• wherein in the shaping step, the activating light absorbent (d) in an amount of 20 to 90% by mass relative to the amount of the photopolymerization initiator (c), and the polymerization inhibitor (e) in an amount of 8 to 150% by mass relative to the amount of the photopolymerization initiator (c) is used to obtain the shaped product comprising an effective amount of the photopolymerization initiator (c), and
• the post-polymerization step comprises irradiating the shaped product with the activating light at an irradiation intensity of 10 to 10,000 mW/cm2 and then heating the shaped product irradiated with the activating light at a temperature of 50° C. or higher and lower than 110° C.