| 摘要 |
PURPOSE:To enhance the sensitivity of a photosensitive body by using a compound having a specified pyrazoline ring as an electrostatic charge transfer material to be used for a photosensitive body composed essentially of an organic pigment. CONSTITUTION:In the case of the functionally separated multilayer photosensitive body, a charge generating pigment is vapor deposited on a conductive substrate or dispersed or mutually dissolved into a resin and applied to the conductive substrate, and on this layer the charge transfer layer containing the compound having the pyrazoline ring represented by formula I in which each of Ar1-Ar3 is phenyl optionally substituted by halogen, alkyl, alkoxy, or nitro, and one of Ar2 and Ar3 is substituted by formula II, each of Ar4, Ar5 is phenyl same as Ar1. in this case, this compound is used in an amount of 40-150wt% of the resin. When the charge generating pigment is dispersed into the charge transfer medium, this pigment is dispersed or mutually dissolved into the binder resin in an amount of 50-300wt% of the binder resin, and a styrene compound is dispersed or mutually dissolved in the binder resin in an amount of 40-150wt% of the resin. The charge generating pigment is added in an amount of 5-100wt% of the binder resin in the case of functionally separated type, thus enhancing sensitivity of the photosensitive body. |
