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Class 430/489 - Antifoggant


Subclass of Class 430 - Radiation imagery chemistry: process, composition, or product thereof
Definition: Compositions wherein the additive reduces fog or stabilizes
No. of patents: 105
Last issue date: 08/05/2003


1      
NumberTitleIssue Date
6602655Black-and-white developing compositions and methods of use
A concentrated black-and-white photographic developing composition has improved stability, is compatible with the environment and provides desired sensitometric properties with a combination of particular antifoggants. These antifoggants include a mercapt...
08/05/2003
6376162Method for processing silver halide color photographic material
In a processing method wherein, after a silver halide color photographic material is subjected to color development, the silver halide color photographic material is desilvered and then washed and/or stabilized, a photographic material that has at least o...
04/23/2002
6350563Photographic black-and-white reversal first developer
A photographic black-and-white reversal first developer, which is substantially free from hydroquinone and which contains at least substances a) to d): a) hydroquinonesulphonic acid, b) a polyglycol with an average molecular weight of 200 to 600, c) an anti-fo...
02/26/2002
6312878Color photographic developer kit
This invention concerns a kit for the development of color photographic products. The kit comprises a basic solution containing an antifogging agent, and a second solution containing a color developing agent. This kit allows an easier preparation of the d...
11/06/2001
6083671Photographic developer for direct production of equidensity images on a high contrast film
Equidensity images can be produced directly on high contrast, thin emulsion, fine grain, silver halide process films, such as Kodak Technical Pan Film (RTM), given instantaneous outdoor camera exposure. Photographic development of the film in an aqueous a...
07/04/2000
5981153Opaque developing composition and its use to process roomlight handleable black-and-white photographic elements
Black-and-white elements, such as radiographic films, can be processed in roomlight because the developing composition includes a particulate opacifying agent, such as carbon black. Processing is carried out by processing the exposed element using a two-s...
11/09/1999
5962203Fogging solution for a reversal process
A new fogging photographic processing solution for a reversal process comprises a compound (I) and a bi-nucleophilic agent. Compound (I) corresponds to the following formula: ##STR1## wherein A is a group capable of being adsorbed to the silver halid...
10/05/1999
5942380Activator for a novel method of developing a photographic product with incorporated developer by surface application
The present invention concerns a novel method for developing silver halide photographic products. This method involves processing photographic products that have an incorporated developing agent, and a nucleation agent, by surface application of an activa...
08/24/1999
5935771Method of processing a silver halide photographic element which reduces fog
This invention relates to a method of preventing fog formation in a silver halide photographic element, said method comprising bringing a silver halide developer solution, or a solution preceding a silver halide developer solution, into contact with a cya...
08/10/1999
5935773Colour photographic silver halide material
A colour photographic silver halide material with a support, at last one silver halide emulsion layer containing at least one yellow coupler and at least one silver halide emulsion layer containing a cyan coupler applied thereon, in which material the sil...
08/10/1999
5912108Processing of a light-sensitive silver halide photographic material
A method has been disclosed of processing an image-wise exposed light-sensitive black-and-white silver halide photographic material comprising a support coated on one or both sides thereof with hydrophilic layers, wherein at least one of said layers compr...
06/15/1999
5882847Image formation method using a silver halide color photographic material
A color light-sensitive material advantageous in that a ratio of γ in a short time processing using a color developer containing a silver halide solvent to γ in a standard time processing using a color developer containing no silver halide solvent is fr...
03/16/1999
5840470Rapid image presentation method employing silver bromide tabular grain photographic elements
Silver bromide color negative films can be rapidly processed using shortened color development times and specific amounts of color developing agent and bromide ion. After development, and optionally desilvering or fixing, the developed film is scanned to ...
11/24/1998
5811226Method of processing a silver halide photographic element which reduces fog
This invention relates to a method of preventing fog formation in a silver halide photographic element, said method comprising bringing a silver halide developer solution, or a solution preceding a silver halide developer solution, into contact with a cya...
09/22/1998
5770351Processing of monochrome photographic silver halide print material
There is described a method of processing silver halide photographic material in a processing machine using a developing solution which comprises either a hydroquinone type developing agent or a reductone type developing agent, together with an electron t...
06/23/1998
5766833Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor
An image-forming process developing a previously image-exposed silver halide photographic material with an alkaline developer containing a reductone compound as a main developing agent in the presence of a 1,2,5-thiadiazole compound and/or a 2,1,3-benzoth...
06/16/1998
5756253Photographic element and method
There are described novel photographic processing compositions, film units and processes for use in diffusion transfer photographic systems. More particularly, there is described a method for forming a diffusion transfer image photographic processing of d...
05/26/1998
5725998Process for developing black-and-white silver halide photographic light-sensitive materials containing a hydrazine compound and a nucleation compound, in a developer containing a developing agent and a mercapto compound
A method of developing an exposed black and white silver halide photographic light-sensitive material with developer using an automatic processor is disclosed, the developing comprising supplying replenisher for developer in an amount of not more than 200...
03/10/1998
5698381Processing system for the development of photographic materials
A low volume developer tank system for the sequential processing of films that require different concentrations of bromide ions in the developer solution comprises a developer tank (2) provided with an ion exchange column (30) for removing bromide ions fr...
12/16/1997
5698379Rapid image presentation method employing silver chloride tabular grain photographic elements
Silver chloride color negative films can be rapidly processed using shortened color development times and specific amounts of color developing agent and bromide ion. After development, and optionally desilvering or fixing, the developed film is scanned to...
12/16/1997
5667949Rapid image forming process utilizing high chloride tabular grain silver halide emulsions with (iii) crystallographic faces
Photographic elements having bromide or iodide ion stabilized high chloride {111} tabular grain emulsions are rapidly processed. The emulsion grains comprise a high chloride core with a surrounding band of higher bromide or iodide ion than that found in t...
09/16/1997
5629140Photographic elements containing scavengers for oxidized developing agent
An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a hydrazide compound that functions as a scavenger for oxidized developing agent. The hydrazide compound includes an electro...
05/13/1997
5578426Method for processing a silver halide color photographic material
There is disclosed a method for processing a silver halide color photographic material having, on a support, at least one photosensitive silver halide emulsion layer, which comprises processing after exposure to light said silver halide color photographic...
11/26/1996
5578434Photographic silver halide developer composition and process for forming photographic silver images
The present invention relates to a black-and-white aqueous alkaline photographic developer composition, free of dihydroxybenzene developing agent, comprising a reductic acid developing agent and an auxiliary superadditive developing agent, wherein the red...
11/26/1996
5561040Method for forming image
There is provided a method for forming an image, which comprises processing a silver halide color photographic material that has a high-silver-chloride silver halide emulsion and which contains in the photographic material a nitrogen-containing heterocycl...
10/01/1996
5523196Method for replenishing a developer
Disclosed is a method for developing a silver halide photographic light-sensitive material with a developer having a pH within the range of 9.5 to 10.7 through an automatic processor, wherein said silver halide photographic light-sensitive material compri...
06/04/1996
5508153Composition for developing a black-and-white silver halide photographic light-sensitive material
A method for processing an imagewise exposed black-and-white negative silver halide photographic light-sensitive material comprising a support having provided thereon photographic layers including at least one silver halide emulsion layer, one of said pho...
04/16/1996
5508154Silver halide photographic light-sensitive material, developer, and image-forming process
An image-forming process of a silver halide photographic material having at least one light-sensitive silver halide emulsion layer on a support, which comprises imagewise exposing the photographic material and developing the exposed photographic material ...
04/16/1996
5503966Photographic developing compositions and use thereof in the processing of photographic elements
Photographic developing compositions are provided that are free of dihydroxybenzene developing agents and are used in the processing of photographic elements. The developing compositions have a pH in the range of from 10.1 to 10.9 and comprise at least 0....
04/02/1996
5503965Process for development of black-and-white- silver halide photographic material
The present invention improves the running stability of a developer comprising an ascorbic acid instead of hydroquinone as a developing agent. The present invention provides a process for development of a black-and-white silver halide photographic materia...
04/02/1996
5464730Low replenishment rate process of development of black-and-white silver halide photographic material using a developer having a low bromide ion concentration and a specified pH range
Disclosed is a method of developing a transmission black-and-white silver halide photographic material with an automatic processor, in which a developer having a bromide ion concentration of 0.01 mol/liter or less and having a pH value of 9.8 or less is u...
11/07/1995
5457010Solid processing composition for silver halide photographic light-sensitive materials
A solid developing composition for providing a color developer of a silver halide photographic light-sensitive material is disclosed, which comprises a compound represented by the following Formula (I), and a compound represented by the following Formula ...
10/10/1995
5457009Silver halide photographic material and method for processing the same
A method of processing a photographic material having, in the backing layer, at least one mercapto pyrimidine compound of formula (I), with an automatic developing machine, where the amount of the replenisher of the developer per unit area of the material...
10/10/1995
5380625Method for processing silver halide color photographic materials comprising particular dye couplers using particular developers
A method for processing a silver halide color photographic material, which comprises processing an image-wise exposed silver halide color photographic material comprising at least one silver halide emulsion layer and containing an N,N-substituted malondia...
01/10/1995
5376509Solid processing compositions for light-sensitive silver halide photographic materials
A processing chemical for light-sensitive silver halide photographic material, comprising a cyclodextrin compound, which can contribute a decrease in packaging materials, transportation cost and storage space, can be free from lateral cracking at the form...
12/27/1994
5344750Color development processing method of silver halide color photographic material using a color developer where the color developing agent concentration and processing temperature are a function of bromide ion concentration
A color development process for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer comprising a color coupler and a silver iodobromide emu...
09/06/1994
5340705Processing liquid for use in silver complex diffusion transfer processing
An aqueous alkaline processing liquid for use in silver halide photography, wherein said liquid comprises one or more alkanolamines, the said alkanolamines consisting of one or more tertiary alkanolamines in a total amount in the range from 0.3 mol/l to 1...
08/23/1994
5318881Method of processing a silver halide radiographic material
This invention relates to a method of processing an image-wise exposed silver halide photographic material wherein said method comprises the following steps: (a) developing the photographic material for 5 to 15 seconds in an aqueous developing solution, (...
06/07/1994
5275915Developer for light-sensitive material
A developer for light-sensitive material capable of processing in common a negative-working light-sensitive lithographic printing plate and a positive-working light-sensitive printing plate as well as a developing agent-containing type silver halide photo...
01/04/1994
5272045Water soluble antifoggant for powder developer solutions
Solid anti-fogging agents such as 5-nitroindazole which are otherwise poorly soluble in water are converted to readily water soluble compositions that are solids at room temperature when they are first dissolved in water soluble polymers or other organic ...
12/21/1993
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