| 摘要 |
PURPOSE:To ensure that an internal structure can be clearly distinguished from the exterior by adding a coloring agent to one of more than two types of photocurable blended resin containing photopolymerization initiators with different absorption wavelengths, and selectively emitting light of a common absorption wavelength to the photopolymerization initiator and the coloring agent added to the photocurable resin for curing and coloring processes. CONSTITUTION:If a blended resin is to be selectively cured and colored such a blended resin is used that its ingredients are two different types of resin, that is, a photocationic polymerization resin A' and a photoradical polymerization resin B' which contain photopolymerization initiators A, B having different spectroscopic sensitivities respeotively. The part irradiated with light of a wavelength lambda1 of each resin A', B' containing the photopolymerization initiators A, B has only the resin A' cured due to a cationio polymerization reaction. On the other hand, the part irradiated with light of wavelength lambda2 has both resins A', B' cared due to a radical and cationic polymerization reaction. In this case, a photoradical polymerization resin containing a coloring agent which becomes colored by emission of light having a specific wavelength is used as the resin B'. Thus only the irradiated part of the resin B' becomes colored by appropriately selective emission of the wavelength lambda2. |
