Subbed paper support for heat development dye diffusion transfer

Abstract

An image forming method using a heat developable light-sensitive material is disclosed. The light-sensitive material is lowered in curling caused by humidity changing at room temperature or heating at development. The method comprises the following steps of imagewise exposing to light a heat developable light-sensitive material comprising a paper support having thereon a subbing layer comprising a hydrophobic resin and a light-sensitive layer being provided on the subbing layer, in which the light-sensitive layer comprises a hydrophilic binder, light-sensitive silver halide grains and a dye providing substance, developing the light-sensitive material be heating, contacting the light-sensitive material with a dye-receiving material, and transferring a diffusible dye formed in the light-sensitive material to the dye-receiving material in the presence of a solvent. The hydrophobic resin of the subbing layer has a glass transition point of from 30.degree. C. to 250.degree. C. The above object of the invention is accomplished by an image forming method comprising the following steps of imagewise exposing to light a heat developable light-sensitive material comprising a paper support having thereon a subbing layer comprising a hydrophobic resin having a glass transition point of from 30.degree. C. to 250.degree. C. and a light-sensitive layer being provided on the subbing layer, in which the light-sensitive layer comprises a hydrophilic binder, light-sensitive silver halide grains and a dye providing substance, developing the light-sensitive material by heating, contacting the light-sensitive material with a dye-receiving material, and transferring a diffusible dye formed in the light-sensitive material in the developing step to the dye-receiving material in the presence of a solvent capable of dissolving the diffusible dye.

Dependencies are inferred from the claim text.