Patent ID: 8593633

Claim:
A method for evaluating a cure degree of an active energy ray-curable resin composition, the method comprising the steps of: irradiating the active energy ray-curable resin composition with an active energy ray; and evaluating the cure degree of the active energy ray-curable resin composition in accordance with a color and a color value of the active energy ray-curable resin composition, the active energy ray-curable resin composition containing at least a radical polymerization compound, a leuco dye, and a radical polymerization initiator; and wherein a part in which the cure degree of the active energy ray-curable resin composition is evaluated is provided separately from a part to which the active energy ray-curable resin composition is being cured, and wherein, in the step of irradiating, the part in which the cure degree of the active energy ray-curable resin composition is evaluated and the part to which the active energy ray-curable resin composition is being cured are simultaneously irradiated with the active energy ray.