Photothermographic recording material comprising sensitizing dyes and a recording process therefor

摘要

A photothermographic recording material comprising a support and a photo-addressable thermally developable element comprising a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith, photosensitive silver halide spectrally sensitized with a dye and in catalytic association with the substantially light-insensitive organic silver salt and a binder, characterized in that the dye is represented by formula (I): with an anion if necessary for charge compensation, wherein Z1 and Z2 independently represent S, O or Se; R1 and R13 independently represent an alkylene group; X1 and X2 independently represent a -(C=O)-R18, a -(SO2)R19 or a (S=O)-R20 group where R18, R19, and R20 independently represent an alkoxy-, aryloxy-, amino- or substituted amino-group.