Importance

Loading Importance Indicators...

Abstract

A heat developable light-sensitive material comprises a support, a light-sensitive layer and a non-light-sensitive layer. The light-sensitive layer contains silver halide and a reducing agent. The non-light-sensitive layer contains a cyanine dye represented by the formula (I) or a salt thereof and a base precursor: ##STR1## in which R.sup.1 is hydrogen, an aliphatic group, an aromatic group, --NR.sup.21 R.sup.24, --OR.sup.21 or --SR.sup.21, each of R.sup.21 and R.sup.24 independently is hydrogen, an aliphatic group or an aromatic group, or R.sup.21 and R.sup.24 are combined to form a nitrogen-containing heterocyclic ring; R.sup.2 is hydrogen, an aliphatic group or an aromatic group; R.sup.3 is an aliphatic group; L.sup.1 is a methine chain consisting of an odd number of methines; and each of Z.sup.1 and Z.sup.2 independently is an atomic group forming a five-membered or six-membered nitrogen-containing heterocyclic ring. A heat development image forming process, a thermal image recording material, a thermally decoloring image recording process and a process for decoloring a cyanine dye are also disclosed.

Loading the Abstract Image...

First Claim