Eastman-kodak Company

Peter J Twist

Anthony Earle

Nigel R Wildman

Siu C Tsoi

Christopher John Winscom

David T Southby

John R Fyson

John Demita Goddard

Peter D Marsden

Eric R Schmittou

Gareth B Evans

Leslie R Wells

David M Henson

Yongcai Wang

Jeffrey L Hall

Tiecheng A Qiao

Daniel L Kapp

Charles S Christ, Jr

Andrew Green

Joseph Bailey

David A Skye

Miroslav V Mijovic

Andrew D Grimsey

Siu-Chung Tsoi

John R Jarvis

Susan Carter

Stuart P Briggs

Richard N Vernon

A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.

Processing of photographic material

A photographic washing bath comprises a chamber containing a wash solution for a silver halide photographic material having a pH of less than 7 and comprising water having dissolved therein an oxidizing agent, said oxidizing agent having an oxidizing potential of at least 1 volt and being in a concentration of from 0.05 to 2 Molar. The oxidation potential of the oxidizing agent is preferably at least 1.2 volts and may be hydrogen peroxide or a source of hydrogen peroxide, a persulphate, a perborate, a bromate, or an iodate. A washing process using the invention is suitable for being carried out in same chamber as the development and fixing stages in which case hydrogen peroxide is the preferred oxidizing agent because any peroxide remaining at the end of the wash stage can be removed by evaporation, thereby avoiding risk of contamination of the next stage to be carried out in the chamber.

Photographic wash solution and process

A method for processing a silver halide photographic material comprises the steps of loading the material into a chamber adapted to hold the material therein, introducing a metered amount of a first processing solution into the chamber, processing the photographic material with the first processing solution, introducing a metered amount of a second processing solution which is other than a second part of the first processing solution into the chamber without removing the first processing solution so that at least part of the total volume of the second processing solution is provided by the first processing solution and processing the photographic material with the second processing solution, the total volume of solution for each processing stage being spread over the whole area of the photographic material in a repetitive manner to enable uniform processing.

Processing photographic material

An apparatus for processing photographic material has a chamber which is manufactured such that temperature uniformity is maintained across the chamber.

A method of processing light sensitive material by the surface application of fresh processing solution to the surface of a moving belt by means of an applicator. The material to be processed is brought into moving contact with the moving belt, the resulting relative motion providing a high level of agitation and mixing of the processing solution.

Method and apparatus for processing a photographic material

The method and apparatus supplies processing solution directly to the surface of a web of sensitized material by means of a movable applicator. The web and applicator are moved relative to each other to enable good mixing of the solution on the surface. The movable applicators can be moved in and out of contact with the material as required so that the process can be varied.

Method and apparatus for processing photographic material

A photographic aqueous processing solution containing at least one solid compound that has a maximum solubility therein corresponding to a desired operating level, which solution is kept in equilibrium with the solid form of the compound, thus maintaining its concentration at the desired level without the need for a replenishing system.

Photographic processing solutions

A method of delivering processing solution to a processing device wherein the processing solutions are provided within sealed members fixedly arranged on a movable web. The web moves relative to the processing area and the sealed members are ruptured when the processing solution within is required.

An apparatus for processing photographic material comprises a chamber adapted to hold the material therein, means for introducing solution into the chamber, means for removing the solution from the chamber, and a member located within the chamber and filling a central part thereof. A gap is defined between the inner wall of the chamber and the central member in which the material is held, thereby retaining the material around the inner circumference of the chamber.

A method of processing photographic material in which a fixed volume of processing solution is added to the surface of the material and spread repeatedly over the length of material. The processing solution is added to the material in at least two stages.

The present invention relates to a processing system and method for processing photographic material. The processing system and method of the invention is adapted to recover water from humid air for reuse in the processor, as well as convert a liquid waste processing solution into a dry waste for disposal. In the system and method of the present invention, heated air is circulated through the processor and comes into contact with a cold surface to condense the heated air. The water resulting from this contacting of the heated air with the cold surface can be collected and recycled back to the processor for reuse in the processor. Further, waste solution can be absorbed by a matting material appropriately placed in the processor which evaporates the waste solution to a solid waste for subsequent disposal.

Method and system for processing photographic material which includes water recovery from humid air for re-use in the processing

A method of processing a photographic material in which the material is loaded into a rotatable chamber and a metered amount of solution is introduced into the chamber. The chamber is rotated and the solution is continuously swept along the surface of the material, forming a wave through which the material passes to enable uniform processing.

This invention relates to a silver halide photographic element comprising a support and at least one gelatin containing imaging or non-imaging layer wherein during chemical processing the maximum swell of the layer is greater than the equilibrium swell.

Color photographic element with improved developability

The present invention relates to a method and system for reusing a washing solution within a processor for processing photographic material. In the method and system of the present invention, sequential washing stages are applied to the processor. During one of the wash stages, and preferably a wash stage subsequent to an initial a first wash stage (a second wash stage), a volume of washing solution which is greater than the washing solution applied in the first wash stage is applied. The washing solution applied in the second or subsequent wash stage is subject to a chemical treatment such as an ion exchange, and is thereafter, recycled back to the processor for reuse in processing photographic material and/or cleaning the components of the processor.

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Buckinghamshire, United Kingdom

Peter J Twist