Photographic silver halide material containing substituted hydroquinone compounds.

摘要

Photographic material which comprises in at least one silver halide emulsion layer or a layer or layers adjacent thereto at least one substituted hydroquinone compound of the formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="22" wi="53" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where R is hydrogen or optionally substituted alkyl, aryl or a heterocyclic group, R<Sub>2</Sub>, R<Sub>3</Sub>, R<Sub>4</Sub> and R<Sub>5</Sub> are each hydrogen, halogen or optionally substituted alkyl,
<UnorderedLists id="ula01" listStyle="none"><ListItem>x is 0 or 1,</ListItem><ListItem>y is 0 or 1,
and R<Sub>1</Sub> is hydrogen or a group of the formula
<Chemistry id="chema02" num="0002"><Image id="ia02" he="14" wi="37" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where R, x and y are as just defined.</ListItem></UnorderedLists>