| 摘要 |
<p>A heat developable light-sensitive material is disclosed. The material comprises a support having provided thereon at least a light-sensitive silver halide, a reducing agent, a binder and an organic silver salt of the formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="38" wi="140" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R, represents a hydrogen atom or a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, aryl or heterocyclic group; R<Sub>2</Sub> represents a hydrogen atom or a substituted or unsubstituted alkyl group; R, represents a halogen atom, a substituted or unsubstituted alkyl, alkoxy, amino, <!-- EPO <DP n="2"> -->alkylsulfonyl, arylsulfonyl, carbamoyl, sulfamoyl or alkoxycarbonyl group or a cyano group; X represents
<Chemistry id="chema02" num="0002"><Image id="ia02" he="19" wi="73" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>, wherein R<Sub>4</Sub> represents a hydrogen atom or a substituted or unsubstituted alkyl group,
<Chemistry id="chema03" num="0003"><Image id="ia03" he="30" wi="77" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>, wherein R<Sub>5</Sub> represents a substituted or unsubstituted alkyl group, and
<Chemistry id="chema04" num="0004"><Image id="ia04" he="32" wi="38" file="IMGA0004.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>: and t represents 0 or an integer of from 1 to 3; and when ℓ is 2 or 3, the groups R<Sub>3</Sub> may be the same or different. The material provides an image of high density with less fog in a short time even using a reduced amount of a base precursor.</p> |
