COATING LIQUID FOR FORMING UNDER COATING LAYER, METHOD OF MANUFACTURING COATING LIQUID FOR FORMING UNDER COATING LAYER, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY, IMAGE FORMING APPARATUS AND ELECTROPHOTOGRAPHIC CARTRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a coating liquid for forming under coating layer of electrophotographic photosensitive body which has high stability.

SOLUTION: In the coating liquid for forming under coating layer of electrophotographic photosensitive body which contains metal oxide particles and a binder resin, the metal oxide particles in the coating liquid for forming under coating layer has a volume cumulative average diameter D50 of 0.1μm or less and has a volume particle size distribution index SD satisfying the following relation (1), which are measured by a dynamic light scattering method; 0.010≤SD≤0.040 (1), wherein SD=(D84-D16)/2. Therein, D84 denotes the particle size (μm) of the point where a volume particle size distribution cumulative curve comes to 84%, and D16 denotes the particle size (μm) of the point where a volume particle size distribution cumulative curve comes to 16%.

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