| 摘要 |
PURPOSE:To prevent fog by incorporating a trisazo pigment, a hydrazone deriv., and one of polyorganosiloxanes in an org. photosensitive layer. CONSTITUTION:An org. photosensitive layer contains a trisazo pigment represented by formula I , a hydrazone deriv. represented by formula II, and organosiloxane represented by formula III, and in formulae I , II, III, A1, A2 are each a ring substd. by halogen, alkyl, or alkoxy at the o-position with respect to the azo group; Z is a benzene, naphthalene, indole, carbazole, or benzofuran ring condensed with the benzene ring; R is optionally substd. phenyl, naphthyl, or heterocyclic: R<1>, R<2> are each alkyl, aralkyl, or aryl; n is 1 or 2; Q is an optionally substd. mono-or divalent aromatic hydrocarbon group: and R<3>, R<4> are each methyl, ethyl, or phenyl. |
