| 摘要 |
PURPOSE:To improve the adhesiveness to a conductive substrate by using a phenoxy resin as a binder to a charge generating layer and to improve electrophotographic characteristics by using a copper phthalocyanine pigment for the charge generating material. CONSTITUTION:The phenoxy resin is dissolved in a suitable solvent and one or more kinds among alpha type, beta type, epsilon type copper phthalocyanine pigments are mixed and dispersed therein, by which a coating soln. is obtd. The coating soln. is coated on the conductive substrate and is dried to form the charge generating layer. The phenoxy resin dissolves in cyclic ethers such as tetrahydrofuran and dioxane, N, N-di-substd. amides such as dimethyl formamide and chlorine solvents such as tegrachlorethane but is insoluble in arom. org. solvents such as toluene, benzene, xylene and chlorobenzene and therefore said resin does not elute in the stage of forming a charge transfer layer and the charge generating layer which is satisfactory in terms of adhesiveness and film formability is formed. |
