US3565632A - Hardening of gelatin - Google Patents
Hardening of gelatin Download PDFInfo
- Publication number
- US3565632A US3565632A US680359A US3565632DA US3565632A US 3565632 A US3565632 A US 3565632A US 680359 A US680359 A US 680359A US 3565632D A US3565632D A US 3565632DA US 3565632 A US3565632 A US 3565632A
- Authority
- US
- United States
- Prior art keywords
- gelatin
- hardening
- processing
- group
- aralkyl
- 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
Links
- 108010010803 Gelatin Proteins 0.000 title abstract description 21
- 229920000159 gelatin Polymers 0.000 title abstract description 21
- 239000008273 gelatin Substances 0.000 title abstract description 21
- 235000019322 gelatine Nutrition 0.000 title abstract description 21
- 235000011852 gelatine desserts Nutrition 0.000 title abstract description 21
- 239000000463 material Substances 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 17
- -1 HYDROXY GROUP Chemical group 0.000 abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 6
- 239000001257 hydrogen Substances 0.000 abstract description 6
- 150000002367 halogens Chemical group 0.000 abstract 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 8
- 150000002429 hydrazines Chemical class 0.000 description 8
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 description 7
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 7
- 125000003545 alkoxy group Chemical group 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 125000003710 aryl alkyl group Chemical group 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 125000005843 halogen group Chemical group 0.000 description 6
- 238000011282 treatment Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- FEUATHOQKVGPEK-UHFFFAOYSA-N 4-hydroxybenzene-1,3-dicarbaldehyde Chemical compound OC1=CC=C(C=O)C=C1C=O FEUATHOQKVGPEK-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 150000002443 hydroxylamines Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- ZBOUXALQDLLARY-UHFFFAOYSA-N 2-hydroxy-5-methylbenzene-1,3-dicarbaldehyde Chemical compound CC1=CC(C=O)=C(O)C(C=O)=C1 ZBOUXALQDLLARY-UHFFFAOYSA-N 0.000 description 1
- VXLCKSFMONBCLQ-UHFFFAOYSA-N [Na]CC[Na] Chemical group [Na]CC[Na] VXLCKSFMONBCLQ-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 159000000013 aluminium salts Chemical class 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 1
- 238000012505 colouration Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- CBEQRNSPHCCXSH-UHFFFAOYSA-N iodine monobromide Chemical compound IBr CBEQRNSPHCCXSH-UHFFFAOYSA-N 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/268—Processing baths not provided for elsewhere, e.g. pre-treatment, stop, intermediate or rinse baths
-
- 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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/30—Hardeners
- G03C1/301—Aldehydes or derivatives thereof, e.g. bisulfite addition products
Definitions
- R or R is an hydroxy group, the other being a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group, R and R are the same or different and are a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group.
- This invention relates to a process for the hardening of gelatin. It is of particular value in the hardening of gelatin layers in photographic gelatino silver halide emulsions.
- the gelatin In the processing of exposed gelatino silver halide photographic material it is desirable that the gelatin should have a relatively tough surface to prevent it being marked during the processing operations, especially during development. It is possible to include a hardening agent in the gelatin as coated, but most hardening agents continue to harden the gelatin for a considerable length of time. Hence, if the photographic material has been stored for some years the gelatin may have become too hard to be successively processed or, alternatively, if the photographic material is comparatively new when it is to be processed the gelatin may not be sufliciently hard and so become marked badly during processing. To some extent the foregoing difficulty can be overcome by including treatment with a gelatin hardening agent as a step in the processing of the photographic material, e.g.
- aprocess for the hardening of gelatin layers in photographic materials during the processing thereof which comprises ice CHO
- R or R is a hydroxy group, the other being a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group, R and R are the same or different and are a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group.
- dialdehydes of the above formula it is preferred to add the dialdehydes of the above formula to the developing solution.
- the preferred quantity of dialdehyde is from 0.5 to 10 g. per litre of developing solution.
- Particularly suitable compounds for use in the invention are 2-hydroxy-5-methylisophthalaldehyde, Z-hydroxy-S- methoxy-isophthalaldehyde and 4-hydroxyisophthalaldehyde.
- Dialdehydes of the above defined formula are stable and reactive at the high pHs of most photographic developing solutions.
- a method of processing exposed gelatino silver halide photographic material which comprises the steps of successively developing, fixing and washing the material, the steps of hardening the gelatin layers of the photographic material either before or during the development thereof by applying to the material a solution of the dialdehyde of the above defined formula and subsequent to the development of the material, applying to the material a solution of a hydroxylamine or hydrazine salt.
- the hydroxylamine or hydrazine salt may be applied to the material as a separate solution either immediately after development, fixing or the washing step. However, this means the introduction of another processing step and therefore it is often convenient to include the hydroxylamine or hydrazine salt in the fixing solution.
- the solution of the hydroxylamine or hydrazine salt when applied to the material after development in the above process not only removes the yellow stain but also removes the hardening of the gelatin. Therefore, unless the hydroxylamine salt solution is applied to the material as an additional step in the processing after the fixing and washing it is preferably to include another hardening agent such as an aluminium salt in either the fixing or washing solution, in order to ensure that the gelatin remains hard during the subsequent processing stages.
- the relative hardness of the two strips is shown by the scratch resistance test.
- a process for the hardening of gelatin layers in photographic materials during the processing thereof which comprises applying to said photographic material prior to or during development thereof a dialdehyde of the following general formula:
- R or R is an hydroxy group, the other substituent selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an aryl group, and an alkoxy group and R and R are independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an aryl group and an alkoxy group.
- dialdehyde is selected from the group consisting of 2-hydroxy- S-methylisophthaldehyde, 2 hydroXy 5 methoxylisophthaldehyde and 4-hydroxyisophthaldehyde.
- a process according to claim 1 which comprises the additional step of applying to the photographic materials after the development thereof a solution of a hydroxylamine or hydrazine salt.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
THIS APPLICATION DESCRIBES A PROCESS FOR THE HARDENING OF GELATIN LAYERS IN PHOTOGRAPHIC MATERIALS DURING THE PROCESSING THEREOF WHICH COMPRISES APPLYING TO THE MATERIAL PRIOR TO OR DURING DEVELOPMENT THEREOF A DIALDEHYE OF THE FOLLOWING GENERAL FORMULA:
1,3-(O=CH-),2-R1,4-R3,5-R2,6-R4-BENZENE
WHEREIN EITHER R1 OR R2 IS AN HYDROXY GROUP, THE OTHER BEING A HYDROGEN OR HALOGEN ATOM OR AN ALKY, ARALKYL, ARYL OR ALKOXY GROUP, R3 AND R4 ARE THE SAME OR DIFFERENT AND ARE A HYDROGEN OR HALOGEN ATOM OR AN ALKYL, ARALKYL, ARYL OR ALKOXY GROUP.
1,3-(O=CH-),2-R1,4-R3,5-R2,6-R4-BENZENE
WHEREIN EITHER R1 OR R2 IS AN HYDROXY GROUP, THE OTHER BEING A HYDROGEN OR HALOGEN ATOM OR AN ALKY, ARALKYL, ARYL OR ALKOXY GROUP, R3 AND R4 ARE THE SAME OR DIFFERENT AND ARE A HYDROGEN OR HALOGEN ATOM OR AN ALKYL, ARALKYL, ARYL OR ALKOXY GROUP.
Description
United States Patent C) 3,565,632 HARDENING F GELATIN Peter Richard Mills, Leeds, and Brian Ronald David Whitear, John Peter Stonham, and Anthony Paul Way, Ilford, Essex, England, assignors to llford Limited, Ilford, Essex, England, a British company No Drawing. Filed Nov. 3, 1967, Ser. No. 680,359 Claims priority, application Great Britain, Nov. 8, 1966, 50,035/ 66 Int. Cl. G03c 1/30 U.S. Cl. 96-111 6 Claims ABSTRACT OF THE DISCLOSURE This application describes a process for the hardening of gelatin layers in photographic materials during the processing thereof which comprises applying to the material prior to or during development thereof a dialdehyde of the following general formula:
(IDHO CHO wherein either R or R is an hydroxy group, the other being a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group, R and R are the same or different and are a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group.
This invention relates to a process for the hardening of gelatin. It is of particular value in the hardening of gelatin layers in photographic gelatino silver halide emulsions.
In the processing of exposed gelatino silver halide photographic material it is desirable that the gelatin should have a relatively tough surface to prevent it being marked during the processing operations, especially during development. It is possible to include a hardening agent in the gelatin as coated, but most hardening agents continue to harden the gelatin for a considerable length of time. Hence, if the photographic material has been stored for some years the gelatin may have become too hard to be successively processed or, alternatively, if the photographic material is comparatively new when it is to be processed the gelatin may not be sufliciently hard and so become marked badly during processing. To some extent the foregoing difficulty can be overcome by including treatment with a gelatin hardening agent as a step in the processing of the photographic material, e.g. as a preliminary step before development or by including a gelatin hardening agent in the developing composition used. The problem in this technique, however, is to find a suitable gelatin hardening agent for such use because many potentially useful agents are found to be unstable in alkaline conditions especially at the high pH values of developers used in rapid processing procedures.
According to the present invention there is provided aprocess for the hardening of gelatin layers in photographic materials during the processing thereof which comprises ice CHO
CHO
wherein either R or R is a hydroxy group, the other being a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group, R and R are the same or different and are a hydrogen or halogen atom or an alkyl, aralkyl, aryl or alkoxy group.
It is preferred to add the dialdehydes of the above formula to the developing solution. The preferred quantity of dialdehyde is from 0.5 to 10 g. per litre of developing solution.
Particularly suitable compounds for use in the invention are 2-hydroxy-5-methylisophthalaldehyde, Z-hydroxy-S- methoxy-isophthalaldehyde and 4-hydroxyisophthalaldehyde.
Dialdehydes of the above defined formula are stable and reactive at the high pHs of most photographic developing solutions.
It has been found that when the gelatin layers of photographic material are hardened using the process of the invention they are hardened sufiiciently to prevent them being damaged during the processing. However, when the gelatin layers of photographic material are hardened by this process sometimes a yellow stain is formed in the layers, which is often undesirable. It has now been discovered that this yellow stain may be removed if the photographic material is treated after the development stage with a solution of a hydroxylamine salt or a hydrazine salt.
Therefore, according to another aspect of the present invention there is provided, in a method of processing exposed gelatino silver halide photographic material which comprises the steps of successively developing, fixing and washing the material, the steps of hardening the gelatin layers of the photographic material either before or during the development thereof by applying to the material a solution of the dialdehyde of the above defined formula and subsequent to the development of the material, applying to the material a solution of a hydroxylamine or hydrazine salt.
The hydroxylamine or hydrazine salt may be applied to the material as a separate solution either immediately after development, fixing or the washing step. However, this means the introduction of another processing step and therefore it is often convenient to include the hydroxylamine or hydrazine salt in the fixing solution. The solution of the hydroxylamine or hydrazine salt when applied to the material after development in the above process not only removes the yellow stain but also removes the hardening of the gelatin. Therefore, unless the hydroxylamine salt solution is applied to the material as an additional step in the processing after the fixing and washing it is preferably to include another hardening agent such as an aluminium salt in either the fixing or washing solution, in order to ensure that the gelatin remains hard during the subsequent processing stages.
The following example will serve to illustrate the invention:
EXAMPLE A strip of a fast iodobromide X-ray film, which had been given a wedge exposure, was developed for 90 seconds at 25 C. in a developer of the following composition:
Potassium sulphite-23 gm.
Sodium sulphite (anhyd)20.5 gm. Hydroquinone-ZS gm. 1-phenyl-4-methy1-3-pyrazolidone0.822 gm. Sodium metaboratel8.5 gm.
Sodium hydroxide-9.3 gm.
Disodium ethylene diamine Tetra-acetic acid2.5 gm.
Potassium bromidegm. 1-phenyl-5-mercaptotetrazole0.02 gm. Acetic acid (glacial)-5 gm. 2-hydroxy-S-methyl-isophthalaldehyde2 gm. Water to 1000 ml.
It was then fixed for 90 seconds at C. in an ammonium thiosulphate fixing bath containing an aluminum salt and washed for 2 minutes. A second strip was developed in an identical developer from which the hardening agent was omitted.
The relative hardness of the two strips is shown by the scratch resistance test.
In this test a loaded stylus is drawn across the swollen emulsion surface and the minimum Weight required to scratch the surface is determined. This test is a development of the procedure described by Parker and ISugden. Photographic Science and Engineering, vol. 7, page 41 (1963).
Gm. Developed without hardener Developed with hardener 100 The hardened strip is however bright yellow, the unexposed region having a density to blue light of 0.85 compared with 0.07 for the unhardened strip.
The loss of yellow colouration by treatment with hydroxylamine or hydrazine salts is illustrated in the following table, in which similar pairs of strips to those already described were first developed and then subjected to the following treatments.
Fog density to blue light This shows that subsequent treatment with a hydrazine or hydroxylamine compound removes the yellow stain from photographic material which has been hardened using the process of the present invention.
What we claim is:
1. A process for the hardening of gelatin layers in photographic materials during the processing thereof which comprises applying to said photographic material prior to or during development thereof a dialdehyde of the following general formula:
CIJHO wherein either R or R is an hydroxy group, the other substituent selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an aryl group, and an alkoxy group and R and R are independently selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an aryl group and an alkoxy group.
2. A process according to claim 1 wherein the dialdehyde of the formula defined in calim 1 is present in the developing solution.
3. A process according to claim 2 wherein from 0.5 to 10 g. per litre of the dialdehyde is present in the developing solution.
4. A process according to claim 1 wherein the dialdehyde is selected from the group consisting of 2-hydroxy- S-methylisophthaldehyde, 2 hydroXy 5 methoxylisophthaldehyde and 4-hydroxyisophthaldehyde.
5. A process according to claim 1 which comprises the additional step of applying to the photographic materials after the development thereof a solution of a hydroxylamine or hydrazine salt.
6. A process according to claim 5 wherein the hydroxylamine or hydrazine salt is present in a fixing solution.
References Cited UNITED STATES PATENTS 2,629,659 2/ 1953 Mueller 961 11 3,102,811 9/1963 Barney 260--117 3,168,400 2/1965 Blackmer 96-56 3,451,817 6/1969 Bard 96-111 NORMAN G. TORCHIN, Primary Examiner J. R. HIGHTOWER, Assistant Examiner
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB50035/66A GB1152428A (en) | 1966-11-08 | 1966-11-08 | Hardening of Gelatin containing Photographic Materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3565632A true US3565632A (en) | 1971-02-23 |
Family
ID=10454402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US680359A Expired - Lifetime US3565632A (en) | 1966-11-08 | 1967-11-03 | Hardening of gelatin |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3565632A (en) |
| BE (1) | BE706242A (en) |
| GB (1) | GB1152428A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424177A (en) * | 1991-07-05 | 1995-06-13 | Konica Corporation | Stabilizer for silver halide color photographic light-sensitive materials and its concentrated composition, and processing method using said stabilizer |
| US5441852A (en) * | 1991-12-27 | 1995-08-15 | Konica Corporation | Method of stabilizing a color silver halide image |
| US5853470A (en) * | 1997-04-28 | 1998-12-29 | Eastman Kodak Company | Pigmented ink jet inks containing aldehydes |
| EP0958922A2 (en) | 1998-05-22 | 1999-11-24 | Eastman Kodak Company | Ink jet printing apparatus with print head for improved image durability |
| US6020398A (en) * | 1998-05-22 | 2000-02-01 | Eastman Kodak Company | Pigmented ink jet inks for poly (vinylalcohol) receivers |
| US6031022A (en) * | 1997-04-28 | 2000-02-29 | Eastman Kodak Company | Pigmented ink jet inks containing olefins |
| US6045219A (en) * | 1998-05-22 | 2000-04-04 | Eastman Kodak Company | Pigmented ink jet prints on gelatin overcoated with hardeners |
| US6074057A (en) * | 1998-05-22 | 2000-06-13 | Eastman Kodak Company | Pigmented ink jet inks and recording elements containing hardening agents |
| US6082853A (en) * | 1998-05-22 | 2000-07-04 | Eastman Kodak Company | Printing apparatus with processing tank |
| EP0958921A3 (en) * | 1998-05-22 | 2000-08-23 | Eastman Kodak Company | Printing apparatus with spray bar for improved durability |
| US6161929A (en) * | 1998-05-22 | 2000-12-19 | Eastman Kodak Company | Inkjet images on PVA overcoated with hardener solution |
| US6435678B1 (en) | 1998-05-22 | 2002-08-20 | Eastman Kodak Company | Waterfast ink jet images treated with hardeners |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217853A (en) * | 1989-11-29 | 1993-06-08 | Fuji Photo Film Co., Ltd. | Method for development processing or silver halide photosensitive materials |
| JP2670872B2 (en) * | 1989-11-29 | 1997-10-29 | 富士写真フイルム株式会社 | Development processing method of silver halide photosensitive material |
-
1966
- 1966-11-08 GB GB50035/66A patent/GB1152428A/en not_active Expired
-
1967
- 1967-11-03 US US680359A patent/US3565632A/en not_active Expired - Lifetime
- 1967-11-08 BE BE706242D patent/BE706242A/xx unknown
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424177A (en) * | 1991-07-05 | 1995-06-13 | Konica Corporation | Stabilizer for silver halide color photographic light-sensitive materials and its concentrated composition, and processing method using said stabilizer |
| US5441852A (en) * | 1991-12-27 | 1995-08-15 | Konica Corporation | Method of stabilizing a color silver halide image |
| US6031022A (en) * | 1997-04-28 | 2000-02-29 | Eastman Kodak Company | Pigmented ink jet inks containing olefins |
| US5853470A (en) * | 1997-04-28 | 1998-12-29 | Eastman Kodak Company | Pigmented ink jet inks containing aldehydes |
| US6045219A (en) * | 1998-05-22 | 2000-04-04 | Eastman Kodak Company | Pigmented ink jet prints on gelatin overcoated with hardeners |
| US6020398A (en) * | 1998-05-22 | 2000-02-01 | Eastman Kodak Company | Pigmented ink jet inks for poly (vinylalcohol) receivers |
| EP0958922A2 (en) | 1998-05-22 | 1999-11-24 | Eastman Kodak Company | Ink jet printing apparatus with print head for improved image durability |
| US6074057A (en) * | 1998-05-22 | 2000-06-13 | Eastman Kodak Company | Pigmented ink jet inks and recording elements containing hardening agents |
| US6082853A (en) * | 1998-05-22 | 2000-07-04 | Eastman Kodak Company | Printing apparatus with processing tank |
| EP0958921A3 (en) * | 1998-05-22 | 2000-08-23 | Eastman Kodak Company | Printing apparatus with spray bar for improved durability |
| EP0958922A3 (en) * | 1998-05-22 | 2000-08-23 | Eastman Kodak Company | Ink jet printing apparatus with print head for improved image durability |
| US6161929A (en) * | 1998-05-22 | 2000-12-19 | Eastman Kodak Company | Inkjet images on PVA overcoated with hardener solution |
| US6176574B1 (en) | 1998-05-22 | 2001-01-23 | Eastman Kodak Company | Printing apparatus with spray bar for improved durability |
| US6254230B1 (en) | 1998-05-22 | 2001-07-03 | Eastman Kodak Company | Ink jet printing apparatus with print head for improved image durability |
| US6435678B1 (en) | 1998-05-22 | 2002-08-20 | Eastman Kodak Company | Waterfast ink jet images treated with hardeners |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1152428A (en) | 1969-05-21 |
| BE706242A (en) | 1968-03-18 |
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