Eastman-kodak Company

Other

Scitex Digital Printing, Inc.

Louis J Rossi

Michael T Regan

Domenic Santilli

Philip T Lau

Stanley W Cowan

Joseph Y Kaukeinen

Hal E Wright

James A Van Allan

Melvin S Bloom

Yee S Ng

Douglas E Bugner

Teh-Ming Kung

Jeanne Ellen Kaeding

Frank G Webster

Sunita P Chavan

John A Ford, Jr

Mridula Nair

Donald R Diehl

Margaret Jones Helber

Zona R Pierce

Yann Hung

Julie P Harmon

Thomas R Klose

A photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I): ##STR1## wherein R.sub.1 represents hydrogen or an alkyl group;

Photographic elements containing cyan dye-forming coupler having a

A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I): ##STR1## wherein R.sub.1 represents hydrogen or an alkyl group;

The invention provides a photographic element which comprises a light-sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler having the formula: ##STR1## wherein: R.sub.1 represents an alkyl or aryl group;

Photographic elements containing new cyan dye-forming coupler providing

A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a magenta coupler represented by formula (I): ##STR1## wherein: R.sub.1 represents a hydrogen atom or an alkyl group;

Photographic elements containing new magenta dye-forming couplers

Neutral density pigmented toner particles are produced by limited coalescence polymerization. The organic neutral density black colorant employed is a 1,4-bis arylazo derivative of 2,3-naphthalenediol.

Toner particles produced by limited coalescence polymerization

A recording liquid for ink-jet recording comprising coloring matter, which is an image-forming component, and a liquid medium for dissolving the coloring matter therein. The liquid medium is ethanol and the coloring matter is a dye represented by the following general formula (A): ##STR1## or the following general formula (B): ##STR2## as an image-forming component.

Recording liquids for ink-jet recording

Ink-jet recording liquids

Pyrrolinone dyes, and photographic materials containing them, which dyes have the formula: ##STR1## wherein; E.sup.1 represents an electron withdrawing group;

Pyrrolinone dyes

Toner particles are provided wherein a magenta dye is dispersed in a styrene butylacrylate copolymer. The dispersed dye is not aggregated, is colorfast, and does not sublime as the particles are heat fused. The dye is a 1,4-diaminoanthraquinone which is substituted in the 2 and 3 positions with phenoxy groups that are, in turn, substituted by either a lower alkyl or chloro group.

Styrene butylacrylate toner with magenta dye

New electrophotographic elements contain electron-transport agents comprising certain new chemical compounds, which are sulfonyl derivatives of dicyanomethylenefluorene.

Electrophotographic elements containing dicyanomethylenefluorene

New chemical compounds are derivatives of fluorenones and are useful as electron-transport agents in electrophotographic elements.

Fluorenone derivatives

The invention provides electrophotographic apparatus for forming a subsequent toner image overlapping one or more toner images previously formed on a surface of an electrophotographic element. The apparatus includes means for electrically charging the surface and the previously formed toner image or images, and means for forming an electrostatic latent image overlapping the previously formed toner image or images on the surface by imagewise exposing the element, through the previously formed toner image or images. The latent image forming means provides actinic radiation of a wavelength outside the range of 400 to 700 nanometers with the density of the previously formed toner image or images to the actinic radiation being less than about 0.2. The apparatus further includes means for electrographically developing the electrostatic latent image to thereby form the subsequent toner image.

Apparatus for forming a multi-color image on an electrophotographic

Near infrared sensitive photoconductive elements are made from fluorine-substituted titanylphthalocyanine pigments which can be dispersion coated.

Photoconductive phthalocyanine pigments, electrophotographic elements

The invention provides an electrophotographic method of forming a subsequent toner image overlapping one or more toner images previously formed on a surface of an electrophotographic element. The method comprises the steps of:

Plural electrophotographic toned image method

Bis aryl-azo compounds of the formula ##STR1## wherein R.sup.1 is lower alkyl and R.sup.2 is fluoro or amino. The compounds are useful as neutral density pigments in electrophotographic developers and have good light stability.

Growing community of inventors

Rochester, NY, United States of America

Louis J Rossi