Panchromatic electrophotographic recording element containing multiple carrier-producing sensentizers

US5069991A · kind A · utility

Assignee

• BASF SE

Inventors

• Reinhold J. Leyrer · Schifferstadt, DE
• Peter Neumann · Wiesloch, DE
• Matthias Dust · Ludwigshafen, DE

Key dates

• Filing date: Oct 17, 1989
• Grant date: Dec 3, 1991
• Expiry date: Oct 17, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G5/067
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A novel panchromatic electrophotographic recording element has an electrically conducting substrate and one or more photoconducting layers. The photoconducting layer contains one or more binders, several charge carrier-producing compounds or sensitizers, one or more charge carrier-transporting compounds (photoconductors) and, if required, additives. The sensitizers themselves are Victoria Blue FB (C.I. 44045), Crystal Violet FN (C.I. 42555), Rhodamine FB (C.I. 45170), Astrazone Orange R (C.I. 48040) and/or Astrazone Orange G (C.I. 48035), which are used together with naphtholactam dyes and/or with isoindolenine dyes. The naphtholactam dyes have one or more chromophores of the general basic structure ##STR1## in the molecule, and the isoindolenine dyes have one or more chromophores of the general basic structure ##STR2## in the molecule.