EP0487616B1 - Verfahren für photographische behandlung - Google Patents

Verfahren für photographische behandlung Download PDF

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Publication number
EP0487616B1
EP0487616B1 EP90913132A EP90913132A EP0487616B1 EP 0487616 B1 EP0487616 B1 EP 0487616B1 EP 90913132 A EP90913132 A EP 90913132A EP 90913132 A EP90913132 A EP 90913132A EP 0487616 B1 EP0487616 B1 EP 0487616B1
Authority
EP
European Patent Office
Prior art keywords
processing
swell
solution
layer
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90913132A
Other languages
English (en)
French (fr)
Other versions
EP0487616A1 (de
Inventor
John Richard C/O Kodak Limited Fyson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Ltd
Eastman Kodak Co
Original Assignee
Kodak Ltd
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kodak Ltd, Eastman Kodak Co filed Critical Kodak Ltd
Priority to AT90913132T priority Critical patent/ATE89422T1/de
Publication of EP0487616A1 publication Critical patent/EP0487616A1/de
Application granted granted Critical
Publication of EP0487616B1 publication Critical patent/EP0487616B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3017—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials with intensification of the image by oxido-reduction
    • G03C7/302—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials with intensification of the image by oxido-reduction using peroxides
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/407—Development processes or agents therefor

Definitions

  • This invention relates to a method of processing a photographic silver halide material.
  • an imagewise exposed photographic silver halide material is processed in one or more aqueous processing solutions.
  • a negative colour image is formed in a film and a colour print is made by exposing a colour negative paper to the negative image.
  • the paper is then processed in a colour developer to form a silver image and corresponding dye image in each of three colour layers thus together forming the desired full colour image.
  • a typical second processing stage is a bleach-fix solution which bleaches the unwanted silver image and removes undeveloped silver halide.
  • Photographic materials not containing silver halide layers are also known which are neverthless processed with solutions.
  • the processing steps are usually accomplished by immersing the photographic material in the processing solutions, often in a processing machine, for a particular length of time at a particular temperature. Thus it is the combination of time and temperature which determines the extent of the processing. In the development stage in particular, the time and temperature have to be accurately controlled.
  • the present invention provides a method of controlling the amount of processing solution components entering the layer or layers of a photographic material hence controlling the processing itself by novel means.
  • a method of processing a photographic material comprising a support bearing at least one swellable layer which method comprises contacting the material successively with a plurality of processing solutions, all but the last of which contain a swell-limiting component in such an amount that the swell of the swellable layer is increased with each solution thus controlling the take-up of processing solution components by said layer at each successive step.
  • the photographic material may be a black-and-white or colour material and may contain a photosensitive silver halide layer comprising a hydrophilic colloid binder, eg gelatin, a gelatin derivative or polyvinyl alcohol.
  • a hydrophilic colloid binder eg gelatin, a gelatin derivative or polyvinyl alcohol.
  • Non-hydrophilic binders may also be used especially in non-silver halide systems.
  • the material may be one for use in physically developed systems including both photosensitive and non-photosensitive materials, for example, materials for the silver salt diffusion transfer process.
  • the material may be for the diazo, dye transfer or dye bleach process.
  • the solution containing the swell limiting compound is preferably aqueous but this is not essential.
  • Non-aqueous solutions for example comprising an alcohol, glycol, glycol ether or hydrocarbon solvents may also be employed.
  • the present invention provides a controlled way of processing photographic products using small amounts of liquid. Processing times can be shortened as concentrations can be higher. More even processing can be achieved for surface applied solutions and processing normally undertaken above room temperature in a deep tank can be achieved at room temperature itself.
  • the concentration of a component could be higher than could be achieved from a conventional, stable developer formulation or the particular combination might be one that would be unstable if combined in a single solution.
  • the component that limits the swell of the emulsion layer may be a salt, particularly an alkali metal or ammonium salt.
  • Such salts may be chlorides, sulphates or carbonates. Examples of particular salts are sodium chloride, potassium sulphate, potassium carbonate, ammonium sulphate, etc.
  • the salt is chosen so as not to interfere with the processing function. Hence, for developers, potassium carbonate or sulphate would be suitable.
  • the developing agent is added separately this could be from an acid solution while the remainder of the necessary components could be added subsequently with sufficient alkali to provide the desired pH for processing.
  • the processing solutions may contain a thickener and hence be viscous, such solutions being suitable for surface application.
  • the processing solution may contain any of the many components used in photography, for example as described in "Modern Photographic Processing” by Grant M. Haist, John Wiley and Sons, 1979.
  • the processing solution may be an amplification solution containing a colour developing agent and a redox amplification oxidant, e.g. a peroxide, periodate or cobalt (III) complex as described in US Patents 3 674 490 or 3 862 842.
  • a redox amplification oxidant e.g. a peroxide, periodate or cobalt (III) complex as described in US Patents 3 674 490 or 3 862 842.
  • the photographic material to be processed may be of many different kinds and contain a variety of additives as described in Research Disclosure Item 17643 December 1978 pages 22-31, Kenneth Mason Publications, Havant, Hampshire, UK.
  • silver halide emulsion layers comprise gelatin as binder which is hardened to a conventional extent. Such a hardened layer is however still able to swell in aqueous solutions.
  • Other binders and polymers may also be present as described in the Research Disclosure article cited above.
  • the density of the yellow Dmax (blue sensitive) area was used to measure the extent of development in a two stage process.
  • samples of a colour negative paper comprising pure silver chloride emulsions were used.
  • the paper was dipped into a test base solution (see table below for composition) for 20 seconds to allow the paper's gelatin layers to swell to their maximum extent (this was established using a swellmeter).
  • the paper was then blotted using photographic blotting paper then plunged into a 20g/l solution of 4-N-ethyl-N-(ö-Methanesulphonamidoethyl-o-toluidine sesquisulphate (CD3) for 3 seconds, before removing and blotting again.
  • the sample was allowed to stand for 30 seconds (although the reaction appeared complete in 5 seconds) before washing in water for 3 minutes and then drying at room temperature.
  • the sample was read at 10 random points, using a Macbeth densitometer, with a blue status A filter in the reflection head. From the 10 readings a mean and standard deviation (a measure of the evenness of the process) were calculated.
  • the potassium carbonate is present to control the swell of the paper gelatin in the base solution. Swell measurements indicate that this restricts the swell of the the material to 12 microns, whereas in water it was 17.5 microns and in 20g/l sodium hydroxide, 21 microns.
  • the results above demonstrate the action of the carbonate. Without the carbonate (solution 1) the density is inferior to the experiment with carbonate and hydroxide (solution 2). The results also indicate that the presence of carbonate gives a more even result. Solution 3 was used to demonstrate that extra base contributed by the carbonate was not responsible for all the density gain shown by solution 2.
  • a negative colour paper which contained a low silver coating weight (as silver chloride) was used. This has silver coating weights of 10mg/m2, 10mg/m2 and 40mg/m2 in the red, green and blue layers respectively.
  • the dispersions were similar to those used in the paper of Example 1 and were coated at the same laydown.
  • the paper was dipped into a test 'base solution' (same as for the previous example) for 20 seconds to allow the paper's gelatin layers to swell to its maximum extent.
  • the paper was then blotted using photographic blotting paper then plunged into a 20g/l CD3 solution to which 100g/l anhydrous sodium sulphate had been added, for 3 seconds, before removing and blotting again.
  • the paper was then dipped into a third solution containing 50 mls/l 30% hydrogen peroxide for 3 seconds before blotting for the last time.
  • the sample was allowed to stand for 30 seconds (again the reaction appeared complete in 5 seconds) before washing in water for 3 minutes and then drying at room temperature.
  • the sample was read at 10 random points, using a Macbeth densitometer, with a blue status A filter in the reflection head. From the 10 readings a mean and standard deviation (a measure of the evenness of the process) were calculated.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Claims (9)

  1. Verfahren zur Verarbeitung eines fotographischen Materials, anfassend einen Träger, der wenigstens eine quellbare Schicht trägt, wobei das Verfahren die Kontaktierung des Materials aufeinanderfolgend mit einer Vielzahl von Verarbeitungslösungen umfaßt, wovon alle, außer der letzten davon, einen quellungsbegrenzenden Bestandteil in einer solchen Menge enthalten, daß die Quellung der quellbaren Schicht mit jeder Lösung erhöht wird, wodurch die Aufnahme von Verarbeitungslösungsbestandteilen durch die Schicht bei jedem aufeinanderfolgenden Schritt gesteuert wird.
  2. Verfahren gem. Anspruch 1, in dem die letzte Verarbeitungslösung ebenfalls einen quellungsbegrenzenden Bestandteil enthält.
  3. Verfahren gem. einem der Ansprüche 1 oder 2, in dem die Verarbeitungslösungen eine Mischung von quellungsbegrenzenden Bestandteilen enthalten.
  4. Verfahren gem. einem der Ansprüche 1 bis 3, in dem die quellungsbegrenzende Verbindung ein wasserlösliches Alkalimetall- oder Ammoniumsalz ist.
  5. Verfahren gem. Anspruch 4, in dem das Salz Chlorid, Sulfat oder Carbonat ist.
  6. Verfahren gem. einem der Ansprüche 1 bis 5, in dem die Lösung wäßrig ist.
  7. Verfahren gem. einem der Ansprüch 1 bis 6, in dem die quellbare Schicht eine fotoempfindliche Silberhalogenidemulsionsschicht ist.
  8. Verfahren gem. einem der Ansprüche 1 bis 7, in dem die quellbare Schicht ein hydrophiles kolloides Bindemittel umfaßt.
  9. Verfahren gem. einem der Ansprüche 1 bis 8, in dem das fotographische Material ein Mehrschichten-Farbmaterial ist.
EP90913132A 1989-08-16 1990-08-09 Verfahren für photographische behandlung Expired - Lifetime EP0487616B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90913132T ATE89422T1 (de) 1989-08-16 1990-08-09 Verfahren fuer photographische behandlung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898918723A GB8918723D0 (en) 1989-08-16 1989-08-16 Method of photographic processing
GB8918723 1989-08-16

Publications (2)

Publication Number Publication Date
EP0487616A1 EP0487616A1 (de) 1992-06-03
EP0487616B1 true EP0487616B1 (de) 1993-05-12

Family

ID=10661738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90913132A Expired - Lifetime EP0487616B1 (de) 1989-08-16 1990-08-09 Verfahren für photographische behandlung

Country Status (5)

Country Link
EP (1) EP0487616B1 (de)
JP (1) JP2690396B2 (de)
DE (1) DE69001610T2 (de)
GB (1) GB8918723D0 (de)
WO (1) WO1991003005A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054330A (de) * 1973-09-10 1975-05-14
JPS51101530A (de) * 1975-03-05 1976-09-08 Fuji Photo Film Co Ltd
JPS54111827A (en) * 1978-02-21 1979-09-01 Konishiroku Photo Ind Co Ltd Processing method for silver halide color photographic material
DE2965489D1 (en) * 1978-05-02 1983-07-07 Polaroid Corp Photosensitive elements for use in a diffusion transfer film unit
JPS5719739A (en) * 1980-07-11 1982-02-02 Konishiroku Photo Ind Co Ltd Formation of dye image
US4347301A (en) * 1980-11-26 1982-08-31 Polaroid Corporation Novel diffusion transfer film units
JPS6147956A (ja) * 1984-08-15 1986-03-08 Fuji Photo Film Co Ltd カラ−拡散転写法写真製品
US4569898A (en) * 1984-11-23 1986-02-11 Polaroid Corporation Photographic film unit with protective, limited swell polymer for silver halide grains

Also Published As

Publication number Publication date
JP2690396B2 (ja) 1997-12-10
GB8918723D0 (en) 1989-09-27
WO1991003005A1 (en) 1991-03-07
DE69001610T2 (de) 1993-12-09
DE69001610D1 (de) 1993-06-17
EP0487616A1 (de) 1992-06-03
JPH04507306A (ja) 1992-12-17

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