Eastman-kodak Company

James A Friday

Joseph F Bringley

Stephen P Singer

Kenneth Joseph Reed

Marcello Vitale

Joe E Maskasky

Victor P Scaccia

Annabel A Muenter

Roger A Bryant

Jerome Robert Lenhard

Joseph P Pepe

Derek D Chapman

Mary Christine Brick

Richard L Parton

Bernard A Clark

Louis Elbert Friedrich

Drake M Michno

John Demita Goddard

Philip A Allway

John E Keevert

James K Elwood

Sharon G Johnston

Jeffrey C Hansen

David R Foster

Elizabeth P Chang

Paul B Merkel

Thomas Henry Whitesides

David T Southby

Thomas B Brust

Pranab Bagchi

Alan R Pitt

Jon N Eikenberry

Michael W Orem

Melvin M Kestner

Kenneth James Lushington

Yun C Chang

Scott Channing Sutton

John B Rieger

Kenneth G Harbison

Sharon R Lunt

Gary W Visconte

Wilbur S Gaugh

Anabisdally I Bodden

Roger A Weiss

This invention relates to a negative silver halide photographic element comprising a support and a silver halide imaging layer containing a light sensitive silver halide imaging emulsion, said silver halide imaging layer further comprising a separately precipitated non-imaging intentionally fogged fine grain emulsion and an electron transfer agent releasing compound represented by formula (I):CAR-(L)-ETA&#x2003;&#x2003;(I)wherein:

Silver halide photographic element containing fogged emulsions for accelerated development

This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein said photographic element has an ISO speed rating of 800 or greater and has an integrated RMS green granularity equal to or less than 11.2. In a preferred embodiment the magenta dye image forming unit contains silver halide emulsion layers of differing sensitivities, said layers comprise at least a slow, a fast and an intermediate layer; and at least one layer of intermediate sensitivity contains a silver halide emulsion comprising tabular silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye, Dye 1, that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, Dye 2, wherein the dye layers are held together by more than one non-covalent force; the outer dye layer absorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer.

High speed color photographic element with improved granularity

This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of the dye image forming units contains layers of differing sensitivities, and the layer of highest sensitivity contains a development promoting agent or a specific coupler as described herein, or a combination thereof, and a silver halide emulsion comprising tabular silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye, Dye 1, that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, Dye 2, wherein the dye layers are held together by more than one non-covalent force; the outer dye layer absorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer.

Color photographic material with improved sensitivity

Photographic recording material for accelerated development

Color photographic material with improved sensitivity comprising a pyrazolotriazole coupler

Color photographic element containing a fragmentable electron donor for improved photographic response

Fragmentable electron donor compounds in combination with high bromide tabular grain emulsions

Fragmentable electron donor compounds combined with broad blue spectral sensitization

Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.

Color photographic element containing speed improving compound

Color photographic element containing speed improving compound in combination with electron transfer agent releasing compound

Color photographic element containing speed improving compound in combination with reflecting material

Color photographic element exhibiting increased red speed

Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler for improved photographic response

A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises tabular grains having &lcub;111&rcub; major faces containing greater than 50 mole percent bromide, and accounting for greater than 50 percent total grain projected area precipitated in a peptizer that is a water dispersible cationic starch, and contains a fragmentable electron donating sensitizer.

Color photographic element containing a fragmentable electron donor in combination with a one equivalent coupler and starch peptized tabular emulsion for improved photographic response

Growing community of inventors

Rochester, NY, United States of America

James A Friday