Electrostatic recording medium

Abstract

Abstract PURPOSE: To enable sufficient conductivity to be obtained despite the use of a water-soluble or water-dispersible adhesive agent and enable recording images of high densities to be obtained even under low humidity atmosphere by using the specific ZnO powder for a conductive substrate. CONSTITUTION: The conductive agent coating solution containing ZnO powder of white or pale gray color having specific resistances of 0.01 to 500Ω.cm, preferably 0.1 to 250Ω.cm when applied with a pressure of 150 kg/cm 2 and a water-soluble or water-dispersible adhesive agent of 3 to 50pts.wt., preferably 5 to 30pts.wt. as solid contents based on 100pts.wt. thereof is coated on an ordinary substrate such as paper. The amount of its coating is so controlled that the surface resistance values of the substrate become 10 6 to 10 10 Ω at ordinary humidity and the dry weights become preferably 5 to 15 g/m 2 . On this is provided a recording layer composed primarily of a suitable insulation type resin within a range of preferably 4 to 7 g/m 2 in dry weight. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Hiroyoshi Fujioka

Bibliographic Details