| 摘要 |
<p>A heat development image forming process comprises steps of: imagewise exposing to light a heat developable light-sensitive material comprising a support, a light-sensitive layer and a non-light-sensitive layer, and then heating the light-sensitive material. The light-sensitive layer or the non-light-sensitive layer contains a heptamethine cyanine dye represented by the formula (I): <CHEM> in which Z<1> is -CR<11>R<12>-, -O-, -S- or -NR<13>-; Z<2> is -CR<21>R<22>-, -O-, -S- or -NR<23>-; each of R<1> and R<2> independently is an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aralkyl group or a substituted aralkyl group; R<3> is hydrogen, a halogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aryl group, a substituted aryl group, a heterocyclic group, a substituted heterocyclic group, cyano, -SO2R<31>, -OR<32>, -SR<33> or -NR<34>R<35>; X is an anion; and n is 0 or 1.</p> |
