| 摘要 |
PROBLEM TO BE SOLVED: To provide an acid pasting processing method which precisely and efficiently controls the crystal type or the particle diameter of a pigment and which stably provides the pigment with satisfactory characteristics as a charge generating material, and to provide the charge generating material, obtained by the processing method and an electrophotographic photoreceptor using the electric charge generating material. SOLUTION: In the acid pasting processing method, a first fluid containing water or an alkaline solution and a second fluid containing the pigment for the charge generating material and an acid for dissolving the pigment are transferred to a micro reactor 5, respectively, the first fluid and the second fluid are made to merge in the microreactor 5 to generate laminar flow, and the pigment is recrystallized by the diffusion of the pigment, from the side of the second fluid to the side of the first fluid. COPYRIGHT: (C)2005,JPO&NCIPI
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