Method for producing coating powder, coating powder and coating powder coating method

摘要

To suppress agglomeration of coating powder, and improve fluidity and dispersibility of the coating powder to uniform a coating film on the surface of a substrate, and for example, to improve photocatalytic performance furnished to the surface of a substrate.SOLUTION: In a production method of coating powder for producing coating powder F that is composed of semiconductor ceramics and applied to a substrate, raw material powder S of the semiconductor ceramics is processed by a wet bead mill method to produce slurry having a primary particles dispersed uniformly in a liquid and the slurry is pelletized by a spray dry method to produce the coating powder F. Tungsten trioxide is added to the raw material powder S containing titanium dioxide as a main component. The tungsten trioxide is 1-30 wt.% relative to the total raw material powder.SELECTED DRAWING: Figure 1