Eastman-kodak Company

Sidney J Bertucci

Eric R Schmittou

John M Buchanan

Stuart T Gordon

Richard P Szajewski

Robert O James

Shirleyanne E Haye

George L Oltean

Keith H Stephen

Thomas Henry Whitesides

Krishnan Chari

Michael J Simons

David M Teegarden

David E Decker

Hugh S Gilmour

Larry D Edwards

This invention relates to a color silver halide photographic element comprising gelatin, a support bearing at least one dye image forming unit selected from a dye image forming unit comprising at least one red sensitive silver halide emulsion layer having associated therewith a dye-forming coupler, a dye image forming unit comprising at least one green sensitive silver halide emulsion layer having associated therewith a dye-forming coupler, and a dye image forming unit comprising at least one blue sensitive silver halide emulsion layer having associated therewith a dye-forming coupler; and a polymer represented by Formula 1. wherein:

Color photographic element having improved speed

Disclosed is a color film comprising ( ) a support layer, ( ) a light sensitive layer, and ( ) a water permeable color filter array (CFA) layer comprising a continuous phase transparent binder containing a random distribution of colored transparent beads, said beads comprising a water-immiscible synthetic polymer or copolymer.

Film with color filter array

Color photographic elements can be processed with an acidic periodate bleaching composition that also includes chloride ions as a rehalogenating agent.

Periodate photographic bleaching compositions

Color photographic elements are processed with an acidic periodate bleaching composition that may also include chloride ions as a rehalogenating agent. Bleaching is carried out after color development is stopped with an acidic stop bath. The processing method provides relatively rapid bleaching without physical defects such as blistering or vesiculation.

Periodate photographic bleaching methods

Color photographic elements are processed with a highly acidic periodate bleaching solution including a rehalogenating agent and a strong acid. Bleaching is carried out after color development without any intervening processing steps, such as an acidic prebath. The processing method provides rapid bleaching without physical defects such as blistering or vesiculation, and minimizes the formation of Dmin.

Periodate photographic bleaching method without acidic prebath

A composition for bleaching or bleach-fixing a silver halide photographic material has a pH of from 2 to 9. The composition comprises a bleaching agent which is either a persulfate or polyvalent metal complex of an aminopolycarboxylic acid, and from 0.01 to 2M of a sulfo-substituted carboxylate represented by Formula I

Sulfo-substituted carboxylates as buffers for photographic bleaches and

A non-rehalogenating bleaching composition for processing imagewise exposed and developed silver halide photographic elements comprising hydrogen peroxide, or a compound which releases hydrogen peroxide, and at least one compound of Formula I

Non-rehalogenating bleaching composition and its use to process silver

Imagewise exposed and developed black and white or color silver halide photographic elements are effectively bleached using a non-rehalogenating peroxide bleaching composition. This bleaching composition comprises hydrogen peroxide, or a precursor that can release hydrogen peroxide, and has a pH from 2 to 6, and at least one compound of Formula I:

Processing silver halide photographic elements with a non-rehalogenating

This invention provides an accelerator for peracid bleaches used for bleaching silver halide photographic elements. The accelerator is a complex of ferric (Fe III) ion and a 2-pyridinecarboxylic acid or a 2,6-pyridinecarboxylic acid. The accelerator may be contained in the bleaching solution, a solution preceding the bleaching solution or in the photographic elements themselves.

Photographic peracid bleaches with ferric 2-pyridinecarboxylate and

A photographic element including a light-sensitive layer and a transparent magnetic layer wherein the magnetic particles in the transparent binder are cobalt surface treated gamma iron oxide (Fe.sub.2 O.sub.3) having a specific area of at least 30 m.sup.2 /g, the particles being coated with from about 10 to about 50% by weight of a material having a refractive index less than that of the binder, the particles having a powder coercivity greater than about 450 Oe.

Transparent magnetic recording layers and photographic elements

Magnetic particles are cobalt surface treated gamma iron oxide (Fe.sub.2 O.sub.3) having a specific area of at least 30 m.sup.2 /g and a powder coercivity greater than about 450 Oe, the particles being coated with from about 10 to about 50% by weight of a material having a refractive index less than about the refractive index of a binder for the particles.

Magnetic particles

An aggregated-Group Ib metal colloid is prepared, which may be used to form stable color-differentiated images, by the selective application of thermal energy thereto. The metal aggregates, when exposed to thermal energy, revert either to the unaggregated metal or to an aggregate of lesser dimension. This change induces a color change in the material, which is clearly visible against those areas not so exposed. The metal aggregates, when dispersed in a polymeric matrix, are stable in the absence of heat.

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Rochester, NY, United States of America

Sidney J Bertucci