Imaging element comprising an electrically conductive layer containing acicular metal oxide particles and a transparent magnetic recording layer
AssigneeEastman Kodak Company
InventorsDennis J. Eichorst, Paul A. Christian, Gerald M. Leszyk
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Abstract
The present invention describes an imaging element which includes a support, an image-forming layer, a transparent magnetic recording layer, and an electrically-conductive layer. The electrically-conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, semi-conductive metal-containing particles having a cross-sectional diameter less than 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
Claims37
An imaging element for use in an image-forming process;
- said imaging element comprising a support, an image-forming layer, a transparent magnetic recording layer, and an electrically-conductive layer;
- said electrically-conductive layer comprising a dispersion in a film-forming binder of acicular, crystalline single-phase, conductive metal-containing particles, said particles having a cross-sectional diameter less than or equal to 0.02 .mu.m and an aspect ratio greater than or equal to 5:1;
- said transparent magnetic recording layer comprising a dispersion in a film-forming binder of ferromagnetic particles.
A photographic film comprising:
- (1) a support;
- (2) a silver halide emulsion layer on one side of said support;
- (3) a transparent magnetic recording layer on the opposite side of said support;
- said transparent magnetic recording layer comprising a dispersion of ferromagnetic particles in a film-forming polymeric binder;
- (4) an electrically-conductive layer which serves as an antistatic backing layer underlying said transparent magnetic recording layer;
- said electrically-conductive layer comprising a dispersion in a film-forming binder of electrically-conductive, acicular, crystalline single-phase, antimony-doped tin oxide particles, said acicular tin oxide particles having a cross-sectional diameter less than or equal to 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
A photographic film comprising:
- (1) a support;
- (2) a silver halide emulsion layer on one side of said support;
- (3) a transparent magnetic recording layer on the opposite side of said support;
- said transparent magnetic recording layer comprising ferromagnetic particles dispersed in a film-forming polymeric binder;
- (4) an electrically-conductive layer which serves as an antistatic backing layer overlying said transparent magnetic recording layer;
- said electrically-conductive layer comprising a dispersion in a film-forming binder of electrically-conductive, acicular, crystalline single-phase, antimony-doped tin oxide particles, said acicular tin oxide particles having a cross-sectional diameter less than or equal to 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
A photographic film comprising:
- (1) a support;
- (2) a silver halide emulsion layer on one side of said support;
- (3) a conductive transparent magnetic recording layer on the opposite side of said support;
- said conductive transparent magnetic recording layer comprising a dispersion in a film-forming binder of ferromagnetic particles and acicular, crystalline single-phase, antimony-doped tin oxide particles;
- said tin oxide particles having a cross-sectional diameter less than or equal to 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.
Dependencies are inferred from the claim text.