Image forming process including heating step

Claim 1

A process for forming an image comprising a step of heating a heat-developable photosensitive material containing a silver halide in the presence of a compound selected from the group consisting of compounds of general formula (I-II): ##STR51## wherein Z represents a group of nonmetallic atoms necessary to complete a phenyltetrazole ring in which the phenyl radical has attached thereto a substituent selected from the group consisting of: ##STR52## wherein R' is a substituted or unsubstituted alkyl radical having 3 to 20 carbon atoms or a substituted or unsubstituted aryl radical, and R" is a hydrogen atom or a radical as defined for R', L 1 is a valence bond or a substituted or unsubstituted divalent radical, p and q each are an integer of 1 or 2, and n is an integer of 0 or 1; compounds of general formula (II--II): ##STR53## wherein Z represents a group of nonmetallic atoms necessary to complete a phenyltetrazole ring in which the phenyl radical has attached thereto a substituent selected from the group consisting of: ##STR54## wherein R' is a substituted or unsubstituted alkyl radical having 3 to 20 carbon atoms or a substituted or unsubstituted aryl radical, and R" is a hydrogen atom or a radical as defined for R', R 1 and R 2 may be the same or different and are individually selected from a hydrogen atom and an alkyl radical having 1 to 4 carbon atoms, s and t each are an integer of 0 to 3 and may be the same or different, X 1 and X 2 may be the same or different and individually selected from an ester linkage, a substituted or unsubstituted amide linkage, and an ether linkage, L 2 is selected from an alkylene, phenylene, and xylylene radical, when X 1 and X 2 are amide linkages, the substituents on the nitrogen may be bonded to form a heterocyclic ring together with parts of L 2 , X 1 , and X 2 , and m and r each are an integer of 0 or 1; and compounds of general formula (III-I): ##STR55## wherein u is an integer of 1 or 2, R 5 represents a substituted or unsubstituted alkyl, cycloalkyl, aralkyl, or phenyul radical when u is 1, and R 5 represents a substituted or unsubstituted phenylene or alkylene radical when u is 2, R 6 represents a substituted or unsubstituted alkyl having at least 3 carbon atoms or a cycloalky1 radical, and --(L)13 represents a valence bond or ##STR56## wherein R 7 is selected from a hydrogen atom and the radicals defined for R 6 and may be the same as or different from R 6 .