Inkless reimageable printing paper and method
AssigneeXerox Corporation
InventorsTyler B. Norsten, Gabriel Iftime, Peter M. Kazmaier
Life of this patent
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Abstract
An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder, and where the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light.
Claims22
An image forming medium, comprising
- a substrate;
- and
- an imaging layer coated on or impregnated into said substrate, wherein the imaging layer comprises a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder;
- wherein the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light;
- and
- the photochromic material is attached to the ionomer.
A method of making an image forming medium, comprising applying an imaging layer composition to a substrate, wherein the imaging layer composition comprises a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder;
- wherein the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light;
- and
- the photochromic material is attached to the ionomer.
A method of forming an image, comprising:
- providing an image forming medium comprising:
- a substrate;
- and
- an imaging layer coated on or impregnated into said substrate, wherein the imaging layer comprises a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder;
- and
- exposing the image forming medium to UV irradiation of a first wavelength in an imagewise manner to form a visible image,
- wherein the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light;
- and
- the photochromic material is attached to the ionomer.
Dependencies are inferred from the claim text.