| 摘要 |
PURPOSE:To enhance sensitivity and durability by using a specified trisazo pigment. CONSTITUTION:A trisazo pigment represented by the general formula (1) is used for a photosensitive layer. An aromatic coupler A is selected from radicals represented by the formulae (2-4). In the formulae, X is a residue condensing with a benzene ring to form a naphthalene, anthracene, carbazole, or dibenzofuran ring; Y is -CONR1R2, R1 being optionally substituted alkyl or phenyl, R2 being optionally substituted alkyl, phenyl, or naphthyl; R3 is optionally substituted alkyl or phenyl; and B1-B7 are each same or different, and H, halogen, or alkoxy. |
