Back to results
US 5,942,325 AGranted
Electrostatic recording materials
AssigneeKimoto Co., Ltd.
InventorsMasaru Ishii, Takehiro Sasaki, Takayuki Nemoto
Life of this patent
Estimating the term…
Abstract
An electrostatic recording material includes a conductive layer and a dielectric layer successively superimposed on a support. The dielectric layer contains an insulating resin and a pigment composition. The pigment composition includes silicon dioxide and a pigment component having a Mohs' scale hardness of 3.5 or less. This material simultaneously solves the prior art problems of "dropouts" and "flares" and improves the density of the printed areas.
Claims13
An electrostatic recording material comprising:
- a support;
- an electrically conductive layer superimposed on said support;
- a dielectric layer containing an insulating resin and a pigment composition, said dielectric layer being superimposed on said electrically conductive layer, said pigment composition consisting of silica gel and a pigment component having a Mohs' scale hardness of 3.5 or less and selected from the group consisting of aluminum hydroxide, talc, calcium carbonate and magnesium hydroxide.
Dependencies are inferred from the claim text.