| 摘要 |
PURPOSE:To improve dispersion rate by dry pulverizing grains by a pulverizer, sending a liquid from a liquid receiving tank connected to the pulverizer to said pulverizer and subjecting dry pulverized grains to wet dispersion while recirculating the same to the receiving tank together with the liquid. CONSTITUTION:This invention relates to a method for dispersing organic photoconductive grains in the production of grains such as electronic photosensitive material and more particularly to a dry method whereby such grains are pulverized by a pulverizer 1 when dispersing the grains in a liquid (e.g. solvent). The liquid is sent from a liquid receiving tank 10 connected to the pulverizer 1 to said pulverizer, and dry pulverized grains are subjected to wet dispersion, while recirculating such grains together with the liquid to the receiving tank 10. This method can reduce the size of the pulverizer consisting chiefly of a dispersing device, yet permitting a large amount of dispersed liquid to be obtained and also pulverizing efficiency and dispersion rate to be improved. |
