Eastman-kodak Company

Drake M Michno

Stephen P Singer

Hans G Ling

William J Begley

Paul L Zengerle

David A Steele

Norma B Platt

Richard P Szajewski

Paul B Merkel

David T Southby

Jerrold N Poslusny

John W Harder

James A Friday

James Henry Reynolds

Steven P Szatynski

George B Bodem

Sharon G Johnston

David R Foster

Teh Hsuan Chen

Robert T Belly

John D Buhr

David S Ross

John B Rieger

Mamie Kam-Ng

Robert C Stewart

Lee J Fleckenstein

William N Washburn

Richard K Rothrock

Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0.005 per mg/m. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.

Color photographic materials with magenta minimum density dyes

Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m. This colorant provides minimum density at lower cost and can be incorporated with minimal or no organic solvents and thus enable a reduced organic load that may lead to improved film physical properties.

Color photographic materials with yellow minimum density colorants

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

Color photographic material with improved sensitivity comprising a pyrazolotriazole coupler

The invention provides a color negative photographic element comprising a light sensitive silver halide emulsion imaging layer having associated therewith a cyan dye-forming coupler dispersion comprising a first 2-ureido-5-acylamino substituted phenolic cyan dye-forming coupler &lsqb;P&rsqb;, a second phenolic cyan dye-forming coupler &lsqb;AP&rsqb; where the 2-substituent is other than an ureido group, a substantially non-color-developable phenolic activator compound &lsqb;ACT&rsqb;, and a non-phenolic organic coupler solvent having a boiling point of at least 150C; wherein compounds represented by &lsqb;P&rsqb;, &lsqb;AP&rsqb;, and &lsqb;ACT&rsqb; are present in the coupler dispersion in relative weight fractions of from 0.30 to 0.65 for &lsqb;P&rsqb;, from 0.15 to 0.35 for &lsqb;AP&rsqb;, and from 0.15 to 0.35 for &lsqb;ACT&rsqb;, provided the sum of the relative weight fractions for &lsqb;P&rsqb;&plus;&lsqb;AP&rsqb;&plus;&lsqb;ACT&rsqb;&equals;1, and the weight ratio of the non-phenolic coupler solvent in the coupler dispersion is from 0.30 to 2.0 relative to the sum of &lsqb;P&rsqb;&plus;&lsqb;AP&rsqb;&plus;&lsqb;ACT&rsqb;. Photographic elements incorporating the dispersion formulation of this invention provide good activity, a cyan dye of high density and acceptable absorption maximum for color negative films. In addition, partial substitution of less expensive cyan auxiliary phenolic coupler &lsqb;AP&rsqb; and activator &lsqb;ACT&rsqb; for cyan phenolic coupler &lsqb;P&rsqb; advantageously allows cost savings.

Cyan coupler dispersion with increased activity

Disclosed is a photographic element comprising a support bearing a blue light sensitive record containing at least three layers having different levels of light sensitivity arranged in the order slowest to fastest with the slowest layer closest to the support and the fastest layer closest to the light exposure source, wherein (a) all of the blue-sensitive layers are closer to the light exposure source than the layers sensitive to any other color; (b) the slowest blue light sensitive layer is at least 1.0 log E slower than the next fastest blue light sensitive layer when measured at a density of 0.15 above Dmin, and contains a particular type of cyan dye-forming development inhibitor releasing (DIR) coupler; and (c) all of the blue light sensitive layers other than the slowest blue light sensitive layer independently contain a certain type of yellow dye-forming DIR coupler. Embodiments of the invention provide improved color rendition without sacrificing blue density.

Color negative element containing triple-coated blue record and method of imaging using same

This invention comprises a photographic element, comprising a support bearing at least one silver halide emulsion and at least one malonanilide yellow dye-forming DIR coupler of structure I, below: ##STR1## wherein: R.sup.1 and R.sub.2 are individually selected from the group consisting of halogen atoms and alkoxycarbonyl, aryloxycarbonyl, carbamoyl, carbonamido, sulfonamido, sulfamoyl, alkylsulfonyl, arylsulfonyl, sulfonyloxy, acyloxy and cyano groups and each is in the para position or in either meta position relative to the NH group of the anilide; m and n are individually 0 or 1; R.sub.3 and R.sub.4 are individually a halogen atom or an alkyl group and may be in the para position or either meta position relative to the NH group of the anilide; X and Y are individually a halogen atom or an alkyl or alkoxy group; and R.sub.5 is an alkyl group with 3 to 10 carbon atoms or a phenyl group.

Photographic element containing a malonanilide DIR coupler

A photographic element comprises an ultraviolet ray absorbing polyester support bearing a light-sensitive silver halide photographic emulsion layer, the support having adjacent thereto one or more contiguous non imaging layers between the support and the closest silver halide photographic emulsion layer said one or more contiguous layers containing a combined gelatin laydown of 2.3 g/m.sup.2 or less.

Photographic silver halide element having polyethylene naphthalate

Photographic elements are disclosed having a first coupler represented by the formula:

Photographic materials having releasable compounds

A color photographic element has a blue sensitive tabular grain silver halide emulsion layer the halide content of which is less than 80% chloride and which has a tabularity of at least 8. The foregoing emulsion is sensitized such that the wavelength of maximum sensitivity of the emulsion between 400-500 nm ('.lambda..sub.Bmax '), the sensitivity at 485 nm ('S.sub.485 '), the sensitivity at 410 nm ('S.sub.410 '), and the sensitivity at .lambda..sub.Bmax ('.lambda..sub.Bmax '), are defined by:

Photographic element containing particular blue sensitized tabular grain

A photographic element including a support and first and second green-sensitive silver halide emulsion layers of different sensitivity, wherein the layer of higher sensitivity includes a two-equivalent magenta dye-forming coupler selected from the group consisting of a pyrazolone coupler having a structure according to formula I and a pyrazoloazole coupler having a structure according to formula II as set forth in the disclosure, and the layer of lower sensitivity includes a two-equivalent magenta dye-forming coupler selected from the group consisting of couplers defined by formulas I and II. The activity of the magenta dye-forming coupler present in the layer of lower sensitivity is less than the activity of the coupler present in the layer of higher sensitivity. The layers of higher and lower sensitivity do not comprise magenta couplers which are defined by the same formula.

Color photographic elements containing a combination of pyrazolone and

A photographic element including a support and at least two green-sensitive silver halide emulsion layers of different sensitivity, each emulsion layer including a two-equivalent pyrazoloazole magenta dye-forming coupler having a structure according to formula I of the disclosure. The activity of the dye-forming coupler present in the layer of lower sensitivity is less than the activity of the dye-forming coupler present in the layer of higher sensitivity.

Color photographic elements containing a combination of pyrazoloazole

A photographic element comprises a support bearing at least one photographic silver halide emulsion layer and at least one coupler (A) having a water solubilizing group wherein coupler (A) forms a compound that is washed out of the photographic element during photographic processing and forms a coupling-off group represented by the formula:

Photographic material and process comprising a coupler capable of

A color photographic element comprising a support bearing at least one photographic silver halide emulsion layer and a combination of at least two couplers (A) and (B), coupler (A) capable upon reaction with oxidized developer of forming a compound that is washed out of the photographic element during photographic processing and capable of releasing a photographic development inhibitor or a timing group having a photographic development inhibitor, the timing group capable of providing timed release of said photographic development inhibitor and coupler (B) capable upon reaction with oxidized developer of forming a compound that is not washed out of the photographic element during photographic processing and capable of releasing a photographic development inhibitor with or without time delay. Such a color photographic material enables formation of improved color images.

Growing community of inventors

Webster, NY, United States of America

Drake M Michno