| 摘要 |
PURPOSE:To obtain a photoconductive film having photoconductivity high in sensitivity by incorporating a trisazo pigment specified in composition. CONSTITUTION:The photoconductive film is formed by using at least one of the trisazo pigments represented by formula I in which A is a group represented by formula II; R is H atom, lower alkyl, aryl, alkoxycarbonyl, aryloxycarbonyl, aryl group, halogen atom, or a monovalent organic residual group; X is a atomic group necessary to condense with a benzene ring and form an optionally substituted hydrocarbon ring or heterocyclic aromatic ring; Y is a group of formula III; each of R1 and R2 is same as R, and each of R1, R2 is optionally same or different; and Z is =NH, =N-R, =S, =O, or Se. |
