Patent ID: 6682878
Filing Date: 2004-01-27
Classification: G03C,Y10S

Abstract:
A thermal development photosensitive material comprising, on one surface of a substrate, at least one photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions and a binder, the reducing agent including:(a) at least one of polyphenol compounds represented by the following formula (I); and (b) at least one of hindered phenol compounds represented by the following formula (II), wherein a molar addition ratio of the at least one compound represented by formula (II) to the at least one compound represented by formula (I) is from 0.001 to 0.2: in which formula R11 and R11â€² each independently represents an alkyl group having 1 to 20 carbon atoms; R12 and R12â€² each independently represents a hydrogen atom or a substituent that is substitutable to a benzene ring; L represents â€”Sâ€” or â€”CHR13â€”; R13 represents a hydrogen atom or an optionally substituted alkyl group having 1 to 20 carbon atoms; and X1 and X1â€² each independently represents a hydrogen atom or a group that is substitutable to a benzene ring, and: in which formula R21 and R22 each independently represents a hydrogen atom, an optionally substituted alkyl group or an optionally substituted acylamino group; neither of R21 and R22 is a 2-hydroxyphenylmethyl group; R21 and R22 are not both hydrogen atoms; R23 represents a hydrogen atom or an optionally substituted alkyl group; and R24 represents a substituent that is substitutable to a benzene ring.