Eastman-Kodak Company

Thomas I Abbott

Cynthia G Jones

Robert E Dickerson

Derek D Chapman

Michael Phillip Youngblood

A photographic recording material is described which comprises a leuco dye which is capable of generating a blue tone in a developed silver image.

Photographic recording material comprising leuco dye for cold silver

Radiographic elements are disclosed comprised of first and second imaging portions separated by an interposed support capable of transmitting radiation to which the second imaging portion is responsive. At least the first imaging portion includes a silver halide emulsion in which high aspect ratio tabular silver halide grains are present. Spectral sensitizing dye is adsorbed to the surface of the tabular grains. Crossover can be improved in relation to the imaging characteristics.

Radiographic elements exhibiting reduced crossover

Radiographic elements are disclosed comprised of first and second imaging portions separated by an interposed support capable of transmitting radiation to which the second imaging portion is responsive. At least the first imaging portion includes a silver halide emulsion in which thin tabular silver halide grains of intermediate aspect ratios are present. Spectral sensitizing dye is adsorbed to the surface of the tabular grains. Crossover can be improved in relation to the imaging characteristics.

Hydroquinone esters are incorporated in or behind a timing layer with a high activation energy to release a competing developer upon contact with a processing composition.

Blocked competing developers for color transfer

A photographic film unit comprises a support having coated thereon at least one photosensitive silver halide emulsion, said layer having associated therewith a dye image-providing material, a dye image-receiving layer, means for discharging an alkaline processing composition within the film unit and at least one layer containing at least one para-nitrobenzylidene dye-forming compound. Some of the para-nitrobenzylidene dye-forming compounds are a dark color at moderately and highly alkaline conditions and are colorless at neutral or only slightly alkaline conditions such as at ambient conditions.

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Rochester, NY, United States of America

Thomas I Abbott