Eastman-kodak Company

Steven G Link

Lois A Buitano

Allan Francis Sowinski

Richard L Parton

David A Stegman

Joan C Potenza

Frederick Charles Derks

Robert E Dickerson

Roger L Lok

Donald R Diehl

Anthony Adin

John D Mee

Pamela M Ferguson

Richard B Anderson

Wayne W Weber, Ii

Thomas R Dobles

Fred M Macon

Maria J Gonzalez

Kenneth Joseph Reed

Paul B Gilman, Jr

John W Boettcher

Robert D Wilson

Melvin M Kestner

Sang H Kim

Kenneth James Lushington

Hans G Ling

William J Harrison

Tommie L Royster, Jr

David E Fenton

Shari L Eiff

Frank G Webster

Roger A Bryant

Ann L Carroll-Lee

Sharon G Johnston

Marian S Henry

Daniel R English

Nona Veith Spitzner

Linda J Knapp

David A Dumont

Andrew J Hoteling

David B Moorehouse

Kenneth William Lowe

James Kenneth Elwood

Heidi Melissa Viterise

Paul A Loncle

Fluorinated bis-(phthalocyanylaluminoxy)silyl bridged cyan or blue-green pigments according to formula (I): wherein Rand Rare independently substituted or unsubstituted alkyl, alkenyl, alkynyl, or cycloalkyl groups with eight or less carbon atoms or aryl groups with ten or less carbon atoms; Ris a divalent linking group comprising oxygen, RRSi, substituted or unsubstituted alkyl, alkenyl, alkynyl cycloalkyl or aryl groups; R, R, and Rmay comprise the elements of a cyclic ring; n is 1-4; and z is 1-4.

Fluorinated bis-(phthalocyanylaluminoxy)silyl pigments

The present invention relates to an aqueous ink comprising at least water, and a colorant of Formula 1 wherein A is any substituted or unsubstituted aromatic or heteroaromatic moiety; R is hydrogen or any non-metallic group; R1 is hydrogen, or any substituted or unsubstituted aryl, alkenyl, alkynyl or alkyl group; R2 and R3 are hydrogen or any non-metallic group, and R2 and R3 can be joined to form a ring that may be aromatic, aliphatic or heterocyclic and may be further substituted; or a colorant of Formula 2: wherein R4 is hydrogen or any non-metallic group; n is an integer of 0-4; and, if n is 2-4, the R4 groups may be the same or different from each other, and a printing method for creating an image on an ink compatible substrate using colorants of Formula 1 or Formula 2.

Inkjet inks containing azo pyrazolobenzopyrimidineone class of colorants

The invention relates to monoazo colorants derived from pyrazolobenzodiazinedioxides of Formula 1:  wherein Rand Rare hydrogen or any non-metallic group, n is 0-4, Ris hydrogen, acyl, aryl, alkenyl, alkynyl or alkyl, A represents an aromatic heterocyclic ring or an aromatic group of Formula 2:  wherein Rand Rare hydrogen, alkyl, sulfonic acid, or 1-4 carbon alkoxy, Ris any non-metallic group, m is 0-3, and Rand R, Rand R, or, when m&#x3e;1, two Rgroups can be joined to form a fused carbocyclic or heterocyclic aromatic or non-aromatic ring. The invention also relates to an aqueous ink that comprises at least one colorant of Formula 1:  wherein A represents an aromatic or heteroaromatic ring, and A can be bonded to other rings that can be aromatic, aliphatic or heterocyclic, and an ink printing method using the colorant-containing ink.

Monoazo colorants from pyrazolobenzodiazinedioxides

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, a magenta dye image forming unit comprised of at least one green sensitive silver halide emulsion, and a yellow dye image forming unit comprised of at least one blue sensitive silver halide emulsion; wherein the at least one green sensitive silver halide emulsion comprises two absorptance peaks, the first peak being between 515 and 540 nm (short wavelength peak) and the second peak being between 565 and 590 nm, (long wavelength peak) and wherein

Photographic film element containing an emulsion with dual peek green responsivity

This invention provides a silver halide photographic element comprising at least one silver halide emulsion comprising silver halide grains which have associated therewith at least an inner dye layer and an outer dye layer wherein the outer dye layer comprises a dye having at least one substituent that has a positive charge, said photographic element further comprising a cyanine dye of formula (I) or (II) (as described in the specification) that is capable of spectrally sensitizing a silver halide emulsion.

Dye-Layered silver halide photographic elements with low dye stain

This invention comprises a photographic element comprising a light sensitive silver halide emulsion layer which contains a sensitizing dye of the formula:

Photographic element

A color photographic element particularly useful for colorimetrically accurate recording of scene exposures is disclosed, which is capable of producing differentiable dye images suitable for scanning and electronic image processing. The element has red, green and blue light recording silver halide emulsion layer units and provides broad, hypsochromic green spectral sensitivity that overlaps with the red spectral sensitivity. The wavelength of maximum sensitivity of the red recording emulsion layer unit is between about 580 and 620 nm, the wavelength of maximum sensitivity of the green recording emulsion layer unit is between about 520 and 565 nm, the relative sensitivity of the green recording emulsion layer unit at 50% of the maximum sensitivity exhibits an overall breadth of at least about 65 nm, and the relative sensitivity of the green recording emulsion layer unit at 520 nm is at least 60% of the maximum.

Photographic elements for colorimetrically accurate recording intended for scanning

A silver halide photographic element, and a method of making such an element, comprising a tabular grain silver halide emulsion containing at least one green spectral sensitizing dye of formula I, and at least one green spectral sensitizing dye of formula II:

Green sensitized tabular grain photographic emulsions

Photographic film element containing an emulsion with green-red responsivity

This invention comprises a photographic element for accurately recording a scene as an image comprising a support and coated on the support a plurality of hydrophilic colloid layers comprising radiation-sensitive silver halide emulsion layers forming recording layer units for separately recording blue, green and red exposures wherein, (A) the blue recording layer unit comprises at least one blue sensitive emulsion having a peak dyed absorptance of between 435 and 465 nm and an absorptance at 480 nm&gE;50% of the maximum peak dyed absorptance; or (B) the blue sensitive recording unit comprises a blue sensitive emulsion layer having a peak dyed absorptance of between 435 and 465 nm, and the emulsion exhibits an overall half-peak dyed absorption bandwidth of at least 50 nm.

Photographic film element with broad blue sensitivity

A color negative film is disclosed capable of producing dye images suitable for digital scanning comprised of a support and, coated on the support, a series of hydrophilic colloid layers including at least two red recording emulsion layer units capable of forming a dye image of a first hue, at least two green recording emulsion layer units capable of forming a dye image of a second hue, and at least one blue recording emulsion layer unit capable of forming a dye image of a third hue, wherein, (1) the series of hydrophilic colloid layers include the following sequence, starting with the layer unit coated nearest the support: (a) a slower speed red recording layer unit, (b) a slower speed green recording layer unit, (c) a faster speed red recording layer unit, and (d) a faster speed green recording layer unit; (2) colored masking couplers are absent from the recording layer units; (3) tabular grain emulsions sensitized to the green and red are employed in the green and red recording layer units, respectively, and (4) spectral sensitizing dye in the red recording layer units exhibits an overall half-peak absorption bandwidth of at least 50 nm bridging the green and red regions of the spectrum, with absorption at 560 nm being in the range of from 80 to 95 percent of maximum absorption, which is located in the spectral region of from 570 to 710 nm. When the images produced by the red recording layer units are printed as red images, the human eye sees the red component image as an improved reproduction of the red component of the original image.

Color negative films intended for scanning having interleaved green and

A photographic element comprises: a support and, coated on the support, a plurality of hydrophilic colloid layers, including radiation-sensitive silver halide emulsion layers, forming layer units for separately recording blue, green and red exposures, wherein, the red recording layer unit is comprised of at least one green-red sensitive emulsion having a peak dyed absorptance of between about 525 and about 600 nm, an overall half-peak absorptance bandwidth of between about 70 and about 150 nm, and a ratio of the bandwidths at 80% of peak absorptance to 50% of peak absorptance of greater than or equal to about 0.25. In preferred embodiments of the invention, the photographic element is especially suited for more accurately recording scenes according to the human visual system.

Photographic film element containing an emulsion with green-red

This invention relates to a silver halide photographic material comprising at least one silver halide emulsion having associated therewith at least one dye of Formula I ##STR1## wherein: W and W' represent independently an O atom, a S atom, a Se atom or a NR' group wherein R' is a substituted or unsubstituted alkyl group,

Photographic material having improved color reproduction

This invention comprises a photographic element for accurately recording a scene as an image comprising a support and coated on the support a plurality of hydrophilic colloid layers comprising radiation-sensitive silver halide emulsion layers forming recording layer units for separately recording blue, green and red exposures wherein, the green recording layer unit comprises at least one green sensitive emulsion having:

Photographic film element containing an emulsion with broadened green

A photographic element having a silver halide emulsion spectrally sensitized to blue light by a dye of formula (I) to have a maximum blue sensitivity at less than 485 nm. The dye allows the element to have good color reproduction while still providing good speed response despite the shorter blue sensitivity. Formula (I) is: ##STR1## wherein: X and X' each independently represent the atoms necessary to complete a thiazole, benzothiazole, naphthothiazole, oxazole, benzoxazole, naphthoxazole, selenazole, benzoselenazole, naphthoselenazole, imidazole, benzimidazole, or naphtho-imidazole, and X may be further substituted and X' substituted or unsubstituted;

Blue sensitizing dyes with heterocyclic substituents

Growing community of inventors

Rochester, NY, United States of America

Steven G Link