Photographic element comprising an ion exchanged reducing agent
AssigneeEastman Kodak Company
InventorsLyn M. Irving, John M. Noonan, Mark E. Irving
Life of this patent
Estimating the term…
Abstract
A photographic element comprises at least one light-sensitive layer on a support wherein the photographic element also comprises a particulate ion exchange material having an average particle size of about 0.01 to about 10 μm and comprising at least one reducing agent ionically bound to an ion exchange matrix.
Claims34
A photographic element comprising a support, at least one light-sensitive silver halide layer and a reducing agent ionically bound to a particulate ion exchange matrix having an average particle size of about 0.01 to about 10 μm.
A method of activating a reducing agent incorporated in a photographic element which comprises a support, at least one light-sensitive silver halide emulsion layer, and at least one reducing agent ionically bound to a particulate ion exchange matrix having an average particle size of about 0.01 μm to about 10 μm, said method comprising contacting the element with a solution, or a solution contained within an ionic binder, having an ionic strength of greater than 0.001 M.
A method of activating a reducing agent incorporated in a photographic element which comprises a support, at least one light sensitive layer and at least one reducing agent ionically bound to a particulate ion exchange matrix having an average particle size of about 0.01 to about 10 μm, said method comprising heating the element to a temperature above about 50° C.
A method of processing a photographic element which comprises a support, at least one light-sensitive silver halide emulsion layer, and an ion exchange material having an average particle size of about 0.01 to about 10 μm and comprising a reducing agent bound ionically to an ion exchange resin, said method comprising contacting the element with a processing solution having a pH greater than 8.
A method of imaging comprising the steps of:
- forming an image in an imagewise exposed light-sensitive silver halide element comprising a support, a light-sensitive silver halide emulsion layer, and a reducing agent ionically bound to a particulate ion exchange material having an average particle size of about 0.01 and about 10 μm;
- scanning said formed image to form a first electronic image representation from said formed image;
- digitizing said first electronic image to form a digital image;
- modifying said digital image to form a second electronic image representation;
- and
- transforming, storing, transmitting, printing or displaying said second electronic image representation.
A method of forming an image comprising the steps of:
- forming an image in an imagewise exposed light-sensitive silver halide element comprising a support, a light-sensitive silver halide emulsion layer, and a reducing agent ionically bound to a particulate ion exchange material having an average particle size of about 0.01 and about 10 μm;
- scanning said formed image to form an electronic image representation from said formed image;
- and
- transforming, storing, transmitting, printing or displaying said electronic image representation.
Dependencies are inferred from the claim text.