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US 5,766,828 AGranted
Laser addressable imaging elements
AssigneeImation Corp.
InventorsRanjana C. Patel, Jonathan C. Vogel
Life of this patent
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Abstract
An infrared laser addressable imaging element comprising a substrate bearing a first layer comprising a reducible light-insensitive silver salt and a binder; and a second layer comprising an infrared absorber, a reducing agent for said silver salt and a binder; wherein said binder of said first layer is a polymeric medium having a glass transition temperature of at least 80.degree. C.
Claims25
An infrared laser addressable imaging element comprising a substrate bearing a first layer comprising a reducible light-insensitive silver salt and a binder;
- and a second layer comprising an infrared absorber, a reducing agent for said silver salt and a binder;
- wherein said binder of said first layer is a polymeric medium having a glass transition temperature of at least 80.degree. C.
A method of imaging comprising the steps of:
- 1) an infrared laser addressable imaging element comprising a substrate bearing a first layer comprising a reducible light-insensitive silver salt and a binder;
- and a second layer comprising an infrared absorber, a reducing agent for said silver salt and a binder;
- wherein said binder of said first layer is a polymeric medium having a glass transition temperature of at least 80.degree. C.
- 2) image-wise irradiating said element with infrared laser radiation of sufficient intensity so as to generate a latent image of silver specks having a D.sub.max of less than 1.0, and
- 3) heating said element to produce a visible image having a D.sub.max of at least 2.5.
2 more elements
Dependencies are inferred from the claim text.