ELECTROSTATIC RECORDING FILM

摘要

PURPOSE:To provide substantial adhesive strength to a substrate to the titled film and to eliminate grazing even when the film is subjected to recording by an electrostatic printer plotter by consisting a conductive layer of flake mica powder coated with antimony solutionized tin oxide and org. binder. CONSTITUTION:The flake mica powder coated with the antimony solutionized tin oxide is used on the both surfaces of the film substrate, by which the same effect is obtd. even if the conductive material is compounded therewith at the lower ratio as said tin oxide has the larger specific surface area than the specific surface area of the conventional metallic oxide such as spherical tin oxide or zinc oxide. The electrostatic recording film having excellent quality is thus formed by forming the conductive layer together with >=30wt% org. binder and providing a dielectric layer (recording layer) on one conductive layer thereof. Since the micaceous particles to be used are flat, the particles have the larger specific surface area than the spherical particles even if the content thereof is <=70wt%. The contact of the particles with each other is thus maintained and the electrical conductivity is developed. The addition of >=30wt% org. binder to the conductive layer is thereby permitted, by which the film strength and the adhesive strength to a base material are improved and the grazing in the stage of recording is prevented.