Eastman-kodak Company

Other

Mary Ellen Craver

Ramanuj Goswami

Jean Marie Buongiorne

Harry J Price

Michael John Haight

John S Badger

Samir Y Farid

Keith H Stephen

John M Mangus

David George Foster

Hugh G McGuckin

Janet M Huston

Robert John Opitz

Manuel A Santos-Rosario

Concentrated photographic fixer additive and fixing compositions and method of photographic processing

Concentrated photographic color developing composition containing stain reducing agent

A ferric-EDTA bleach regenerator composition can be mixed with bleach overflow to provide a bleach replenisher for reversal color silver halide photographic processes. The bleach regenerator composition has a critically controlled pH between about 6.0 and about 6.5, and comprises a total bromide ion concentration of at least about 210 g/l, and ferric ion in an amount of at least about 50 g/l. At least 50% of the bleach overflow and the bleach regenerator composition are mixed in at least a 1:1 volume ratio. After pH adjustment to from about 5.4 to about 5.6, the pH adjusted replenisher is supplied to the bleach tank for use in the process.

Bleach regenerator composition and its use to process reversal color photographic elements

A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.

Method for reducing the dye stain in photographic elements

Specific aromatic compounds having an extended planar &pgr; system are useful as spectral sensitizing dye stain reducing agents in photographic processing compositions and methods for providing color or black-and-white images in various photographic silver halide materials. These compounds are devoid of diaminostilbene fragments or fused triazole nuclei. They are particularly useful in fixing and bleaching compositions in the processing of color photographic silver halide materials, but can also be used in various other processing compositions.

Photographic processing compositions containing stain reducing agent

Solublized 2,6-dinaphthylaminotriazines

Color reversal photographic films are processed using a reversal solution comprising stannous ion and a quaternary ammonium compound as the sole microbial control agent, to reduce formation of visible biogrowth. The quaternary ammonium compound is present at very low concentrations of 1 to 20 ppm, and is preferably myristyltrimethyl ammonium bromide because it avoids precipitates with components that may leach out of some processed films.

Photographic reversal composition and method of use

Potographic processing compositions containing stain reducing agent

A conditioning solution or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade. This solution contains an antimicrobial composition that consists essentially of a polyaminocarboxylic acid or salt thereof as the sole antimicrobial agent. This agent is present in an amount of less than about 3 g/l.

Photographic conditioning solution containing polyaminocarboxylic acid as sole antimicrobial agent and method of use

Specific aromatic compounds having an extended planar .pi. system are useful as spectral sensitizing dye stain reducing agents in photographic processing compositions and methods for providing color or black-and-white images in various photographic silver halide materials. These compounds are devoid of diaminostilbene fragments or fused triazole nuclei. They are particularly useful in fixing and bleaching compositions in the processing of color photographic silver halide materials, but can also be used in various other processing compositions.

Specific aromatic compounds having an extended planar .pi. system are useful as spectral sensitizing dye stain reducing agents in photographic processing compositions and methods for providing color or black-and-white images in various photographic silver halide materials. These compounds are devoid of diaminostilbene fragments or fused triazole nuclei. They are particularly useful in fixing and bleaching compositions in the processing of color photographic silver halide materials, but can be used in various other processing compositions.

Growing community of inventors

Rochester, NY, United States of America

Mary Ellen Craver