Eastman-kodak Company

Paul A Burns

J Ramon Vargas

John W Harder

Paul P Spara

Robert F Romanet

Susan M Fischer

Stephen A Hershey

David G Lincoln

Phillip D Knight

Richard P Szajewski

William J Begley

Stephen P Singer

Jerrold N Poslusny

Louis Elbert Friedrich

Daniel L Kapp

Lynda D Weber

Rajiv P Balasubramanian

Barbara Boland Lussier

Frank D Coms

Brian Thomas

Ronald E Leone

David A Steele

Hans G Ling

Rakesh Jain

Arlyce T Bowne

Teh-Hsuan Chen

Llewellyn J Leyshon

Paul R Buckland

William R Schleigh

Norma B Platt

Michael J Proseus

Terry R Taber

Philip D Knight

Timothy D Norden

Disclosed is a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a yellow dye-forming coupler having formula I:

Silver halide photographic element, imaging process, and compound

Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler, having appended to a ring carbon at a non-coupling position thereof a substituent group represented by the formula:

Photographic element having improved dye stability, compound, and imaging process

Photographic element containing ballasted tetrazole derivative and inhibitor releasing coupler

Disclosed is a photographic element comprising a non-light sensitive layer containing elemental silver and a heterocyclic thiol compound having a Clog P of at least 2.0 but less than 12.0, provided that the ring system of the compound comprises a --N.dbd.C--S--H group or its tautomer and does not react with an oxidized developer. The invention provides improved minimum densities in imaging layers.

Color photographic element containing elemental silver and heterocyclic

The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: wherein

Photographic element having improved magenta dye light stability and

Disclosed is a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by Formula I: ##STR1## wherein R' represents the group ##STR2## in which R.sup.1, R.sup.2, and R.sup.3 independently selected all groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;

Photographic element containing magenta coupler having improved

The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: ##STR1## wherein X is hydrogen or a coupling-off group;

The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula I: ##STR1## wherein X is hydrogen or a coupling-off group; and

There are described reversal photographic elements containing magenta dye-forming couplers that yield dye images that particularly lend themselves to retouching. The photographic element comprises a pyrazoloazole magenta dye forming coupler having a cleavable ballast group joined to the remainder of the molecule by one or two electrophilic cleavage groups which can be removed with a specialized processing composition after reversal processing.

Retouchable reversal silver halide photographic element with a

An improved color reversal element comprising: a support having thereon at least two light-sensitive silver halide emulsion layers and a compound capable of releasing a development inhibitor, the element comprising a compound having the structural formula

Image formation in color reversal materials using strong inhibitors

Monocyclic and polycyclic azoles having the following formula modify the tone of a silver image formed from a fine grain radiation sensitive silver chlorobromide emulsion layer in which the silver chlorobromide grains have a mean equivalent circular diameter of less than 0.3 .mu.m. The azoles have the formula: ##STR1## wherein Z is --N.dbd. or --C(R.sup.5).dbd. where R.sup.5 is hydrogen, --NH.sub.2, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;

Tone control of photographic silver images

A silver halide photographic light-sensitive material for development in a development solution at a pH of at least 11.4 is disclosed. The material comprises a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having the formula:

DIR couplers with hydrolyzable inhibitors for use in high pH processed

There are described a method for retouching photographic images, compositions adapted for such retouching, and photographic elements containing dye-forming couplers that yield dye images that particularly lend themselves to retouching by this method. The method comprises contacting a photographic element containing a dye image with a defined retouching composition to solubilize and remove selected areas or amounts of dye. The composition comprises an aqueous basic solution of a dinucleophile and a water-soluble organic co-solvent. The preferred photographic element for application of this retouching method comprises a dye image formed from a pyrazoloazole magenta dye forming coupler having a cleavable ballast group joined to the remainder of the molecule by one or two electrophilic cleavage groups. The retouching composition cleaves the ballast from the dye and solubilizes the dye, allowing it to be washed from the element.

Process for retouching photographic images containing a dye having a

Monocyclic and polycyclic azoles having the following formula enhance the covering power of a developed silver image formed from a radiographic element comprising a radiation sensitive tabular grain silver bromide, silver bromochloride or silver bromoiodide emulsion layer containing grains having a mean equivalent circular diameter of at least 0.3 .mu.m and a grain population wherein at least 50 percent of the total grain population projected area is accounted for by tabular grains having a tabularity of greater than 8, as determined by the relationship: ##EQU1## wherein T is tabularity; ECD is the mean effective circular diameter in .mu.m of the tabular grains; and t is the mean thickness in .mu.m of the tabular grains. The azoles have the formula: ##STR1## wherein Z is --N.dbd. or --C(R.sup.5).dbd. where R.sup.5 is hydrogen, --NH.sup.2, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;

Radiographic elements with improved covering power

Monocyclic and polycyclic azoles having the following formula modify the tone of a silver image formed from a fine grain radiation sensitive silver bromide or silver bromoiodide emulsion layer in which the silver bromide or silver bromoiodide grains have a mean equivalent circular diameter of less than 0.3 .mu.m. The azoles have the formula: ##STR1## wherein Z is --N.dbd. or --C(R.sup.5).dbd. where R.sup.5 is hydrogen, --NH.sub.2, aliphatic of 1 to 8 carbon atoms or aromatic of 1 to 8 carbon atoms;

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Rochester, NY, United States of America

Paul A Burns