| 摘要 |
PURPOSE:To increase sensitivity and to stabilize repetitive characteristics such as sensitivity, electrostatic charging potential and others by adding acenaphthylene to an electrophotographic receptor wherein perylene pigments are dispersed in a binder resin. CONSTITUTION:In an electrophotographic receptor wherein the perylene pigments expressed by the general formula (in the formula, R1, R2 are respectively H atoms, substd. or unsubst. alkyl groups or aryl groups) are dispersed in a binder resin such as poly-N-vinyl carbazol or the like, acenaphthylene is compounded therewith at 2-40pts.wt. in 100pts.wt. the binder resin, whereby the electrophotographic receptor which has excellent sensitivity, is extremely small in the decrease in electrostatic charging potential despite repetitive use and permits maintaining of sharp pictures free from photographic fogs on account of an extremely small increase in the remaining potential is obtained. |
