Eastman-kodak Company

Charles M Darmon

Paul A Schwartz

Charles S Christ, Jr

William G Henry

Jean Marie Buongiorne

Michael John Haight

Sheridan E Vincent

Michael Phillip Youngblood

Ann M Cullinan

Rosa P Sauter

Barry C Kocher

Erika S McLarney

Terrence Robert O'Toole

Shirleyanne E Haye

Janet M Huston

Thomas Edward Lowe

Charles F Leith

Ralph L Piccinino, Jr

Daniel R English

Mary C Kelley

The present invention relates to a processing solution supply cartridge which utilizes a single container for a single-part developer concentrate. The single container has at least two valves or necks and is adapted to be utilized on a existing processor or processing machine. The single developer container design of the present invention assures a complete emptying of the container by permitting the simultaneous replenishment of single-part developer through each of the valves into the processing machine. With the combination of the single developer container and the single-part developer the process of metering distinct developers through distinct containers is not required. By facilitating the complete emptying of the developer container, the likelihood of developer solution remaining in the container is minimized.

Photographic processing arrangement and a processing solution supply cartridge for the processing arrangement

An aqueous, homogeneous, single-part color developing concentrate comprises a color developing agent in free base form and an organic antioxidant. The concentrate also includes a water-miscible or water-soluble organic co-solvent and a quaternary ammonium salt to enhance its stability. The concentrate can be used to make a working strength processing solution, or it can be used as a replenishing composition with proper dilution, and is particularly useful for processing color negative or color reversal photographic silver halide films.

Color developer concentrate for color film processing

Homogeneous single-part color developer per color film processing and method of using same

A multi-part color developing kit includes at least two parts (or solutions) of photochemical compositions that can be mixed to provide a color developing composition useful for obtaining color photographic images. A first aqueous solution is formulated with a color developing agent in free base form, an antioxidant for the color developing agent, an inorganic base, a triazinylstilbene optical brightening agent, an chemical base and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. A second aqueous solution is formulated with a buffering agent, the same or different chemical base and a phosphonic acid metal ion sequestering agent. Both solutions have a pH and homogeneity to provide a clear color developing composition that is safer for use and disposal.

Multi-part photographic color developing composition and methods of manufacture and use

A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.

Calcium ion stable photographic color developing composition and method of use

A homogeneous color developing concentrate comprises a color developing agent in free base form, an antioxidant for the color developing agent and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. This concentrate is prepared in a unique manner, namely by combining the noted components and removing the sulfate anions commonly present in color developing agents by precipitation with alkali metal ions. The concentrate can be used to prepare photographic processing concentrates and working strength solutions.

Homogeneous photographic color developing concentrate

Multi-part photographic color developing composition and methods of

An aqueous, homogeneous, single-part color developing concentrate comprises a color developing agent in free base form, an antioxidant for the color developing agent, a buffering agent, and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent present in an a concentration such that the weight ratio of water to the organic solvent is from about 15:85 to about 50:50. This composition is prepared in a unique manner, namely by combining the noted components, and removing the sulfate anions commonly present in color developing agents by precipitation with alkali metal ions, before addition of further components. The concentrate can be used to make a working strength processing solution, or it can be used as a replenishing composition with proper dilution.

Homogeneous single-part photographic color developing concentrate and

An aqueous, homogeneous, single-part, chloride ion-free color developing concentrate comprises a color developing agent in free base form, an antioxidant for the color developing agent, a buffering agent, and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent present in an a concentration such that the weight ratio of water to the organic solvent is from about 15:85 to about 50:50. Upon dilution at least four times, this composition can be used to provide a color developing composition for processing photographic color papers. The same concentrate can also be diluted to provide a replenisher for the color developing composition that is used at a replenishment rate of from about 50 to about 150 ml/m.sup.2 of processed color paper.

Low replenishment color development using chloride ion-free color

A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at .ltoreq.450 g/l, a sulfite at from 0 to 100 g/l, a bleach accelerating agent at .ltoreq.13.5, and a metal ion chelating agent at .ltoreq.45 g/l.

Container having photographic conditioning solution concentrate

A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at 200 to 450 g/l, a sulfite at from 40 to 100 g/l, a bleach accelerating agent at 1.5 to 13.5, and a metal ion chelating agent at 5 to 45 g/l.

Photographic conditioning solution concentrate containing bleach

A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. These advantageous effects are achieved by including a secondary amine in the solution along with a formaldehyde precursor and a bleach accelerator.

Photographic conditioning solution containing bleach accelerator,

A method for retouching a film image comprises applying an aqueous composition to the film image. The aqueous composition comprises from about 5 to about 300 g/l of an acid selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, and mixtures thereof, from about 1 to about 100 g/l of at least one compound selected from the group consisting of ascorbic acid, oxalic acid, sulfite compounds, hydroxyl amine salts, iodide compounds, hypophosphite compounds, dithionite compounds, tin(II) compounds, and mixtures thereof, and a balance of water.

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Spencerport, NY, United States of America

Charles M Darmon