| abstract |
A stable white painted surface with a small color difference is always obtained regardless of the amount of paint in a gas baking furnace, and the reflectance in the entire range of visible light wavelengths from 430 nm to 700 nm is further increased, and the reflectance is further increased. And to provide a stable powder coating for visible light reflection and a reflector formed of the coating. A powder coating for visible light reflection comprising a polyester resin having an acid value of 20 to 80, a solid epoxy compound having an epoxy equivalent of 99 to 2000, and titanium oxide having a refractive index of 2.7 or more, wherein the titanium oxide is used. Is a titanium oxide having a spherical crystal structure, a coating layer of alumina and silica by a chlorine method treatment, and having an average particle size of 0.2 to 0.3 μm, which is 15 to 25% by PVC (38 to 54% by PWC). And 0.02 to 1% by weight of a phosphorus-based additive as a curing catalyst and an antioxidant, respectively. [Selection diagram] Fig. 1 |