EP0487616A1 - Method of photographic processing. - Google Patents
Method of photographic processing.Info
- Publication number
- EP0487616A1 EP0487616A1 EP90913132A EP90913132A EP0487616A1 EP 0487616 A1 EP0487616 A1 EP 0487616A1 EP 90913132 A EP90913132 A EP 90913132A EP 90913132 A EP90913132 A EP 90913132A EP 0487616 A1 EP0487616 A1 EP 0487616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- swell
- processing
- layer
- solution
- components
- 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.)
- Granted
Links
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
- METHOD OF PHOTOGRAPHIC PROCESSING 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.
- time and temperature determines the extent of the processing.
- 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 with a processing solution containing a component which limits the swell of the layer so that its ta e—up of processing solution components is controlled by the degree of said swell.
- 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 photographic material is successively contacted with a number of processing solutions each one containing swell—limiting components in such amounts that the swell of the layer is increased with each solution so that further processing solution components are successively taken up by said layer.
- 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 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. In such a case it is convenient to keep and apply the developing agent and the oxidant in separate solutions as a solution of them both is unstable.
- 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 following examples are given for a better understanding of the invention. All processing was carried out at 20°C.
- Example 1 Conventional Colour Processing
- 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 potassium carbonate is present to control the swell of the paper gelatin in the base solution.
- 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.
- the paper was then dipped into a third solution containing 50 mls/1 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.
Abstract
Procédé de traitement d'une matière photographique comprenant un support sur lequel repose au moins une couche pouvant se gonfler, lequel procédé consiste à mettre en contact la matière avec une solution de traitement contenant un composant limitant le gonflement de ladite couche, de sorte que son absorption de composant de la solution de traitement est régulée par le degré dudit gonflement.A method of treating a photographic material comprising a support on which rests at least one layer which can swell, which method consists in bringing the material into contact with a treatment solution containing a component limiting the swelling of said layer, so that its component absorption of the treatment solution is regulated by the degree of said swelling.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90913132T ATE89422T1 (en) | 1989-08-16 | 1990-08-09 | PROCEDURE FOR PHOTOGRAPHIC TREATMENT. |
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 true EP0487616A1 (en) | 1992-06-03 |
EP0487616B1 EP0487616B1 (en) | 1993-05-12 |
Family
ID=10661738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90913132A Expired - Lifetime EP0487616B1 (en) | 1989-08-16 | 1990-08-09 | Method of photographic processing |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0487616B1 (en) |
JP (1) | JP2690396B2 (en) |
DE (1) | DE69001610T2 (en) |
GB (1) | GB8918723D0 (en) |
WO (1) | WO1991003005A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5054330A (en) * | 1973-09-10 | 1975-05-14 | ||
JPS51101530A (en) * | 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 |
WO1979001020A1 (en) * | 1978-05-02 | 1979-11-29 | Polaroid Corp | Photosensitive elements |
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 (en) * | 1984-08-15 | 1986-03-08 | Fuji Photo Film Co Ltd | Photographic product for color diffusion transfer process |
US4569898A (en) * | 1984-11-23 | 1986-02-11 | Polaroid Corporation | Photographic film unit with protective, limited swell polymer for silver halide grains |
-
1989
- 1989-08-16 GB GB898918723A patent/GB8918723D0/en active Pending
-
1990
- 1990-08-09 DE DE90913132T patent/DE69001610T2/en not_active Expired - Fee Related
- 1990-08-09 EP EP90913132A patent/EP0487616B1/en not_active Expired - Lifetime
- 1990-08-09 WO PCT/EP1990/001314 patent/WO1991003005A1/en active IP Right Grant
- 1990-08-09 JP JP2512130A patent/JP2690396B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9103005A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0487616B1 (en) | 1993-05-12 |
JPH04507306A (en) | 1992-12-17 |
DE69001610D1 (en) | 1993-06-17 |
GB8918723D0 (en) | 1989-09-27 |
DE69001610T2 (en) | 1993-12-09 |
JP2690396B2 (en) | 1997-12-10 |
WO1991003005A1 (en) | 1991-03-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2592368A (en) | Gelatine silver halide emulsion layer containing a dihydroxy diphenyl tanning developing agent | |
US3647460A (en) | Method of producing photographic images by rapid processing | |
US3615440A (en) | Novel photographic compositions and processes | |
US4374922A (en) | Method for the formation of a dye image | |
JPS6021371B2 (en) | Method for manufacturing silver halide photographic materials | |
US4330617A (en) | Photographic elements containing novel developing agent precursors | |
Tull | Tanning development and its application to dye transfer images | |
JPS5863933A (en) | Image formation method | |
US2835575A (en) | Photographic reproduction process | |
EP0189603A1 (en) | Process for the production of silver images including a stabilisation-fixing treatment | |
EP0487616A1 (en) | Method of photographic processing. | |
US3591380A (en) | Rapid stabilizing process for color photographic materials | |
US2448857A (en) | Stabilization of photographic emulsions | |
US2713305A (en) | Photographic dye transfer process | |
EP0802452B1 (en) | Method for developing a photographic product with incorporated developer | |
US3993490A (en) | Direct positive photographic elements containing developers | |
US4886737A (en) | Stabilization of a photographically produced silver image | |
US2305169A (en) | Process of producing sensitive silver halide-colloidal aggregates | |
US4433037A (en) | Heat erasable photographic element and process comprising silver halide | |
JPS62257150A (en) | Stabilization of silver image generated photographically | |
US3694209A (en) | Process for the development of exposed photographic material containing silver halide | |
US3271153A (en) | Photographic processing baths for stabilization processing | |
US3645731A (en) | Silver salt diffusion alkaline bath of trisodium phosphate and a polyalcohol | |
US3698901A (en) | Photographic elements,compositions and processes | |
US3340063A (en) | Photographic colloid transfer system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19920213 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE |
|
17Q | First examination report despatched |
Effective date: 19920714 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19930512 Ref country code: NL Effective date: 19930512 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19930512 Ref country code: DK Effective date: 19930512 Ref country code: BE Effective date: 19930512 Ref country code: AT Effective date: 19930512 |
|
REF | Corresponds to: |
Ref document number: 89422 Country of ref document: AT Date of ref document: 19930515 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69001610 Country of ref document: DE Date of ref document: 19930617 |
|
ITF | It: translation for a ep patent filed |
Owner name: MODIANO & ASSOCIATI S.R.L. |
|
ET | Fr: translation filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19930831 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19980702 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19980806 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19980827 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19981013 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990809 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990831 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19990809 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000601 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050809 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |