| 摘要 |
<p>An eiectrophotographic photoreceptor excellent in properties after repeated use and durability is provided by containing a bis-azo pigment represented by the following general formula [I] or [II] in the light-sensitive layer on the conductive support:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="39" wi="75" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein X represents -0-, -S- or N-R<Sub>4</Sub> wherein R<Sub>4</Sub> represents a hydrogen atom, an alkyl group or an aralkyl group, R<Sub>1</Sub>, R<Sub>2</Sub> and R<Sub>3</Sub> each represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or a group of atoms necessary to from a condensed ring by combination of two or them, Y<Sub>1</Sub> and Y<Sub>2</Sub> each represent a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, A represents a coupler residue necessary to produce an azo pigment and n is 0 or 1;
<Chemistry id="chema02" num="0002"><Image id="ia02" he="34" wi="73" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein Y, and Y<Sub>2</Sub> each represent a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, R<Sub>1</Sub> and R<Sub>2</Sub> each represent a hydrogen atom, an alkyl group, an alkoxy group - or a group of atoms necessary to form a condensed ring by combination of them, A represents a coupler residue necessary to produce an azo pigment and n is 0 or 1. An electrophotographic process using the said photoreceptor is also disclosed.</p> |
