Heat developable light-sensitive material with protective layer

A dye image forming process, comprising:

• heat developing a heat developable light-sensitive silver halide, a hydrophilic binder and a dye providing substance by heating after imagewise exposure or simultaneously with imagewise exposure to imagewise form a mobile dye,
• transferring said mobile dye from said heat developable light-sensitive material to a dye fixing material comprising a support having thereon a dye fixing layer, a hydrophilic binder and a mordant by heating after the heat developing or simultaneously with the heat developing in the presence of a hydrophilic thermal solvent which is contained in the dye fixing layer or a layer adjacent thereto and is coated in an amount of 20-200% by weight based on the total coating amount of the layers of the heat developable light-sensitive material and the dye fixing material, and
• peeling said dye fixing material form said heat developable light-sensitive material,
• said heat-developable light-sensitive material further comprising a protective layer on the side that said heat developable light-sensitive material contacts with said dye fixing material containing gelatin and at least one nonionic hydrophilic polymer having a molecular weight range of 2,000 to 1,000,000 which is selected from the following group (i) or (ii):
• (i) a nonionic hydrophilic polymer represented by the general formula (I):
• ##STR20## wherein x is 0 to 100 mol%, y is 0 to 100 mol%, the total of x and y is 100 mol%, R.sub.1 is hydrogen or alkyl, R.sub.2 is hydrogen or alkyl, R is --OH, carbamoyl or a 5- or 6-membered nitrogen-containing heterocyclic group and R' is --OH, carbamoyl or a 5- or 6-membered nitrogen-containing heterocyclic group;
• or
• (ii) a nonionic hydrophilic polymer selected from the group consisting of:
• ##STR21## wherein n represents the degree of polymerization, dextran,
• graft polymers of dextrin and ethylene oxide,
• graft polymers of dextrin and propylene oxide,
• poly(N-vinyl)pyrrolidone,
• grafted gelatin,
• hydroxyethyl cellulose,
• hydroxypropylmethyl cellulose phthalate,
• a polymer having the following repeating unit:
• ##STR22## starch, or pullulan.