PHOTOTHERMOGRAPHIC MATERIAL CONTAINING AT LEAST ONE KIND OF DYE ABSORBING ELECTROMAGNETIC BEAM IN WAVELENGTH RANGE OF 700-1,100NM

摘要

PROBLEM TO BE SOLVED: To ensure high IR sensitivity and superior image forming property by using a specified stilbene compd. as a supersensitizer. ;SOLUTION: An aq. dispersion liq. contg. a nonphotosensitive org. silver salt, photosensitive silver halide spectrally sensitized to IR with a dye, a supersensitizer for the dye, a reducing agent and a binder is prepd. and a substrate is coated with the dispersion liq. The binder contains a water-soluble polymer and/or a water-dispersible polymer, the dye absorbs electromagnetic beams in the wavelength range of 700-1,100nm and the supersensitizer is a stilbene compd. represented by the formula, wherein each of R¹-R⁴ is H, alkyl, aryl, aralkyl, alkoxy, etc., these groups may be substd., and each of R⁵-R¹², alkyl, substd. alkyl, alkoxy, substd. alkoxy, sulfo, etc.;COPYRIGHT: (C)1998,JPO