Photographic element having a transparent magnetic layer and a process of preparing the same

A photographic element comprising a support, having at least a silver halide light-sensitive layer and a transparent magnetic recording layer, the transparent magnetic layer having ferromagnetic particles and abrasive particles in a polymeric binder, the ferromagnetic particles having a surface area of at least 30 m.sup.2 /gm and being present in the transparent magnetic layer in a coverage of from about 1.times.10.sup.-11 mg/.mu.m.sup.3 to about 1.times.10.sup.-10 mg/.mu.m.sup.3, the abrasive particles having an average diameter of from about 0.04 to about 0.4 and a Mohs hardness of at least 6, the polymeric binder containing from about 0.05 to about 25 weight percent based on the weight of the polymeric binder of a dispersant-cobinder comprising a poly(C.sub.2-4 -alkyleneimine) carrying at least two mono- or poly-(carbonyl - C.sub.1-7 -alkyleneoxy) groups.

A method of making a photographic element having a silver halide light-sensitive layer and a transparent magnetic recording layer on a support comprising forming a first dispersion of ferromagnetic particles having a surface area of at least 30 m.sup.2 /gm in a solution of a polymeric binder polymer in a first solvent, forming a second dispersion of abrasive particles in a second solvent, at least the first or second dispersion containing from about 0.05 to about 25 weight percent based on the weight of the binder of a dispersant-cobinder comprising a poly(C.sub.2-4 -alkyleneimine) carrying at least two mono- or poly-(carbonyl-C.sub.1-7 -alkyleneoxy) groups, combining the first and second dispersions, to form a coating composition, applying the coating composition to a photographic film support and applying at least one silver halide light-sensitive layer to the opposite side of the film support.