PHOTOGRAPHIC ELEMENT PROVIDED WITH A BACKING LAYER AND METHOD FOR MANUFACTURE THEREOF

摘要

A photographic element that is useful as an imaging master in the field of graphic arts is comprised of a dimensionally-stable polyester film having a radiation-sensitive silver halide emulsion layer on one side thereof and having on the opposite side, in order, a latex subbing layer and a backing layer. The backing layer is comprised of gelatin, a matting agent, a filter dye and a blocked gelatinhardening agent. In the manufacture of the photographic element, a high temperature heating step is employed to activate the blocked gelatin-hardening agent and thereby harden the backing layer.