US3677760A - Hardening process for photographic light-sensitive elements - Google Patents
Hardening process for photographic light-sensitive elements Download PDFInfo
- Publication number
- US3677760A US3677760A US818101A US3677760DA US3677760A US 3677760 A US3677760 A US 3677760A US 818101 A US818101 A US 818101A US 3677760D A US3677760D A US 3677760DA US 3677760 A US3677760 A US 3677760A
- Authority
- US
- United States
- Prior art keywords
- hardening
- group
- solution
- processing
- photographic light
- 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
- 238000000034 method Methods 0.000 title abstract description 21
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 50
- 238000012545 processing Methods 0.000 abstract description 25
- 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 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- -1 SILVER HALIDE Chemical class 0.000 abstract description 9
- 239000004332 silver Substances 0.000 abstract description 9
- 229910052709 silver Inorganic materials 0.000 abstract description 9
- 125000000896 monocarboxylic acid group Chemical group 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910006069 SO3H Inorganic materials 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 24
- 239000000839 emulsion Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 19
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 14
- 239000001632 sodium acetate Substances 0.000 description 14
- 235000017281 sodium acetate Nutrition 0.000 description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 13
- 229910052938 sodium sulfate Inorganic materials 0.000 description 13
- 235000011152 sodium sulphate Nutrition 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 150000001299 aldehydes Chemical class 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 125000003118 aryl group Chemical group 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- ZWLUXSQADUDCSB-UHFFFAOYSA-N phthalaldehyde Chemical compound O=CC1=CC=CC=C1C=O ZWLUXSQADUDCSB-UHFFFAOYSA-N 0.000 description 6
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- FEUATHOQKVGPEK-UHFFFAOYSA-N 4-hydroxybenzene-1,3-dicarbaldehyde Chemical compound OC1=CC=C(C=O)C=C1C=O FEUATHOQKVGPEK-UHFFFAOYSA-N 0.000 description 3
- VSGACYFHLPVUQM-UHFFFAOYSA-N 4-hydroxyphthalaldehyde Chemical compound OC1=CC=C(C=O)C(C=O)=C1 VSGACYFHLPVUQM-UHFFFAOYSA-N 0.000 description 3
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- IZALUMVGBVKPJD-UHFFFAOYSA-N benzene-1,3-dicarbaldehyde Chemical compound O=CC1=CC=CC(C=O)=C1 IZALUMVGBVKPJD-UHFFFAOYSA-N 0.000 description 3
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- NRUVTHFIADHCGM-UHFFFAOYSA-N 2,4-diformylbenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(C=O)C=C1C=O NRUVTHFIADHCGM-UHFFFAOYSA-N 0.000 description 2
- QHRPBXABWLRILP-UHFFFAOYSA-N 4,6-dihydroxybenzene-1,3-dicarbaldehyde Chemical compound OC1=CC(O)=C(C=O)C=C1C=O QHRPBXABWLRILP-UHFFFAOYSA-N 0.000 description 2
- MFXUVYUPPKVYPH-UHFFFAOYSA-N 4,6-dimethylbenzene-1,3-dicarbaldehyde Chemical compound CC1=CC(C)=C(C=O)C=C1C=O MFXUVYUPPKVYPH-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000008098 formaldehyde solution Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 2
- AYZFTYFURGCPEJ-UHFFFAOYSA-N 2,4-dihydroxybenzene-1,3-dicarbaldehyde Chemical compound OC1=CC=C(C=O)C(O)=C1C=O AYZFTYFURGCPEJ-UHFFFAOYSA-N 0.000 description 1
- ZLUFKHAUVPNHQF-UHFFFAOYSA-N 2,5-diformylterephthalic acid Chemical compound OC(=O)C1=CC(C=O)=C(C(O)=O)C=C1C=O ZLUFKHAUVPNHQF-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 240000005265 Lupinus mutabilis Species 0.000 description 1
- 235000008755 Lupinus mutabilis Nutrition 0.000 description 1
- 229910003251 Na K Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000019095 Sechium edule Nutrition 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical class [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 235000011128 aluminium sulphate Nutrition 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HNQIVZYLYMDVSB-UHFFFAOYSA-N methanesulfonimidic acid Chemical compound CS(N)(=O)=O HNQIVZYLYMDVSB-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- BJRMSWLIEROPHS-UHFFFAOYSA-N n-ethylaniline;sulfuric acid Chemical compound OS(O)(=O)=O.CCNC1=CC=CC=C1 BJRMSWLIEROPHS-UHFFFAOYSA-N 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 description 1
- 229940116357 potassium thiocyanate Drugs 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 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
- G03C5/29—Development processes or agents therefor
- G03C5/305—Additives other than developers
-
- 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
-
- 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
Definitions
- the present invention relates to a process for hardening emulsion layers for silver halide photographic light-sensitive elements.
- a silver halide photographic light-sensitive element When a silver halide photographic light-sensitive element is processed at high temperature or it is processed for a long time in solutions of high pH, as is the case with the processing of reversal color photographic materials, it is necessary to harden the emulsion layers thereof at an early stage of the processing to prevent the emulsion layers from being damaged during the processing.
- the examples of such hardening process are the treatment of photographic materials with an aqueous alkaline solution of an aliphatic aldehyde or with an aqueous solution of aluminium sulfates.
- the hardening solution should harden emulsion layers effectively without giving chemical fogs to the emulsions.
- Aldehydes often give fogs to silver halide emulsions owing to' their reducing property, therefore, for hardening it is important to overcome such a difliculty.
- the hardening solution should afford the quick hardening. That is, the emulsion layers should be hardened within one minute in a pre-hardening bath, or when the hardeners are in developers, they should be hardened quickly at the beginning of the development.
- the suflicient hardening should be attained by possibly small content of hardening agent in solution.
- the benefit of reducing hte concentration of hardening agents lies not only in decrease in chemical cost but also in elimination of their undesirable secondary effects and the easier scavenging of residual hardening agents after the prehardening process.
- a large quantity of an aldehyde is necessary for the hardening at low pH. To reduce the aldehyde concentration, the pH of the bath must be increased,
- an improved hardening agent should have a suflicient hardening effect even in solution of low concentration and low pH.
- the hardening agent should not react with colorforming materials (couplers) in the emulsion layers.
- an object of the present invention is to provide a hardening process for photographic light-sensitive elements capable of performing effective hardening without accompanying the aforesaid technical difliculties.
- an object of the present invention is to provide a hardening process for photographic light-sensitive elements capable of exhibiting effectively the hardening effect even at a low concentration of hardening agent in a very short period of time with less formation of fogs and without accompanying undesirable reaction with couplers.
- Another object of this invention is to provide a hardening agent capable of being used not only in hardening bath but also in a hardening developer by which hardening is proceeded simultaneously with the course of development.
- R CHO wherein R and R each represents a hydrogen atom, a lower alkyl group such as a methyl group or an ethyl group, a group capable of increasing water-solubility, such as -SO H, COOH, or -OH, Na, K or NH, salt thereof.
- Phthalaldehyde OHO (2) Isophthalaldehyde (4) 2-methylterephthalaldehyde CHO I @CH] l O HO 3 (5) 4,5-dimethylphthala1dehyde (6) 4-hydroxyphthalaldehyde (7) S-methylisophthalaldehyde CHO C CHO (8) Z-hydroxyisophthalaldehyde (9) 4 hydroxyisophthalaldehyde (10) 2,4-dihydroxyisophthalaldehyde III H (1 1) 4,6-dihydroxyisophthalaldehyde 0- O m QM 4.. o
- an additive amount of formaldehyde is 5-30 ml. of a 37% aqueous solution per one liter of the processing solution, preferably 20 ml. of a 37% aqueous solution.
- Japanese patent publication No. 27,560/64 discloses a process of hardening by a mixture of the abovementioned dialdehyde and formalin is excellent on the 7 point of less fog formation as compared vvith the, known combination of aldehydes. Furthermore,thewconibination of this invention is more profitable, because .the solution,
- the hardening agent of this invention can be used not only for pre-harclener but also for a devel oper to enable simultaneous hardening and development intonev processing 'bath without much increase in developer tog.
- composition A 5.4 ml. of sulfuric acid (1:1), 150 g. of sodium sulfate and 20 g. of sodium acetate;
- composition B 5.4 ml. of sulfuric acid, 150 g. of sodium sulfate,
- composition C 20 g. of sodium acetate, and 20 ml. of formalin (37%); composition C: 5.4 ml. of sulfuric acid, ,150 g..of sodium sulfate, 20 g. of sodium acetate, 1.0g. of phthaldialde hyde; composition D:- 4 ml. of sulfuric. acid, 150 g of sodium sulfate, g. of sodium acetate, and 1.0 g. of isoph: thalaldehyde; composition E: 5.4 ml. .of sulfuric acid, 15.0 g. of sodium sulfate, 20g. of sodium acetate and 1,0 g.
- composition F 5 .4 ml. of sulfuric acid, 150 .g. of sodium sulfate, 20 g. of sodium acetate, 1.0 g. of phthaldialdehyde, and 20 ml. of formalin (37%); composi: tion G: 5.4. ml. of sulfuric acid, 150 g. of sodium sulfate, 20 g. of sodium acetate,. l,0 g. of isophthalaldehyde,,20 ml. of formalin (37%); compositionHpSAnil. of sulfuric acid, 150 g.” of sodium sulfate, 20 g. of sodium acetate, 1.0 g.
- composition 1 5.4 ml. of sulfuric acid (1:1), 150 g. of so dium sulfate, 20 g. of sodium acetate, 1.0 g; of 4-hydroxyphthalaldehyde and 20 cc. of formalin (37%);
- composition I 5.4 ml. of sulfuric acid (1:1), 150 g. of sodium sulfate, 20 g. of sodium acetate, 1.0 g. of 4-hydroxy-5-methf ylisophthalaldehyde and 20 cc. of formalin (37%);
- composition K 5.4 ml. of sulfuric acid (1:1), .150 g.
- composition L 5.4 ml. of sulfuric acid, 150 -g'-. of sodium sulfate; 20 g. of sodium acetate, 1.0"g.of 2,S-dicarboxyterephthalaldea 'hyde and 20 cc. of formalin (37%); ompos-ition M:5.f1 ml. of sulfuric acid (1:1), 150'1g.;"of sodium sulfate, 20g, of sodium acetate, 1.0 g. ofj4-sulphoisoplith-alaldehyde and 20 cc. of formalin (37%).
- i I L 'Each of the compositions wasdiluted with water to one liter in volume, the pH of which was 4.8.
- the developer was a conventional blacl; and white developer for positive film containing metol and hydr' oquinone and the fixing solution was a conventional acid hardener fixer.
- the fog densities of the black and white t 1 e'gative' image thus obtained are shown in the following table.
- the melting point of the emulsion layers thus processed were measured for, knowing the ex,- tent of the hardness of the emulsion layers, the results of which are also shownin the same table.
- This valiie is the temperature when after washing the film subjectedflto the hardening processing with water, the emulsion layer was swelled and dissolved in the solution in the case of heating the film to the temperature in an aqueous 0.2 N sodium hydroxide solution.
- composition of the hardening bath was the same in Example 1.
- Other compositions for the above-mentioned processings are shown below.
- composition for the 1st developer G N-methyl-p-aminophenol sulfate 2.0 Sodium sulfite 90.0 Hydroquinone 8.0 Sodium carbonate (monohydrate) 52.5 'Potassium bromide 5.0 Potassium thiocyanate 1.0 Water to make 1 liter.
- composition for the 2nd developer Benzyl alcohol ml 5.0 Sodium sulfite g 5.0 3-methy1- 4 amino-N-ethyl N methane sul-fonamide ethyl-aniline sulfate g 1.5 Potassium 'bromide g 1 Sodium phosphate, tribasic g 30 Sodium hydroxide g 0.5 Ethylenediamine (aq. soln.) ml.. 7
- the photographic properties of the reversal color images thus obtained are shown in the following table. As shown in the results, the photographic properties .were not deteriorated. as compared with-those obtained without using the dialdehyde and also in someof them, themaxi mum density was increased. Also, the strength of. the emulsion layers processed in accordance with the present invention was very excellent as shown in Example 4.
- the processes were. carried out at C.
- the composition of the developer was as follows, .while the fixing solution was a usual acid fixing solution. 1
- composition for the developer A N-methyl-p-aminophenol sulfate, g 4. 5 4. 5 Sodium carbonate (monohydrate), g.. 41 41 Sodium sulfite, g 15 15 Hydroquinone, g...v 8. 0 8. 0 Potassium bromide, 3. 0 3. O fi -nitrobenziurldazole, g 0. 1 0.1 Formaldehyde (37%) ml- 2 2-methyl-terephthalaidehyde, g 0. 5 Sodium hydroxide;g- Y r r H 0. 1 0.1 1 Sodium sulfate, 2 4
- the processings were conducted in an automatic developing machine with 'stirring vigorously. After the processings; the formation of mechanical damage to the sur'-' face of-the emulsion layer was detected. This showed that the damage in the case of using hardening solution A was reduced to A of the damage in the case of using hardening solution B. The fog density was 0.10 in both cases.
- said aromatic dialdehyde capable of maintaining a group capable of increasing water solubility on the aromatic nucleus, said group being a member selected from the group consisting of SO H, COOH, OH, and the Na, K, or NH salt thereof.
- dialdehyde is 0.5-1.5 g. per 20 ml. of an aqueous solution of formaldehyde when the'concentration of the formaldehyde solution is about 37 by weight.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2634168 | 1968-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3677760A true US3677760A (en) | 1972-07-18 |
Family
ID=12190721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US818101A Expired - Lifetime US3677760A (en) | 1968-04-19 | 1969-04-21 | Hardening process for photographic light-sensitive elements |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3677760A (enrdf_load_stackoverflow) |
| BE (1) | BE731638A (enrdf_load_stackoverflow) |
| DE (3) | DE1919603A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2006527A1 (enrdf_load_stackoverflow) |
| GB (3) | GB1238574A (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994729A (en) * | 1973-04-06 | 1976-11-30 | Fuji Photo Film Co., Ltd. | Method for processing photographic light-sensitive material |
| US4078932A (en) * | 1975-05-01 | 1978-03-14 | Agfa-Gevaert, N.V. | Hardening developers for silver halide photography |
| US4247625A (en) * | 1978-12-20 | 1981-01-27 | Eastman Kodak Company | Imaging processes, elements and compositions featuring dye-retaining binders for reaction products of cobalt complexes and aromatic dialdehyde |
| US5441852A (en) * | 1991-12-27 | 1995-08-15 | Konica Corporation | Method of stabilizing a color silver halide image |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1590126B1 (de) * | 1966-06-22 | 1970-10-08 | Bbc Brown Boveri & Cie | Elektrisches Installationsgeraet,insbesondere Wippen- oder Tastschalter |
| US3989529A (en) * | 1974-10-29 | 1976-11-02 | Gaf Corporation | Hydrophilic coupler solutions |
| CH642479A5 (en) * | 1979-04-05 | 1984-04-13 | Feller Ag | Push-button switch having a small lamp for visual switch marking |
| 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 |
-
1969
- 1969-04-17 BE BE731638D patent/BE731638A/xx unknown
- 1969-04-17 DE DE19691919603 patent/DE1919603A1/de active Pending
- 1969-04-17 DE DE19691919604 patent/DE1919604A1/de active Pending
- 1969-04-17 FR FR6911951A patent/FR2006527A1/fr not_active Withdrawn
- 1969-04-17 DE DE19691919592 patent/DE1919592A1/de active Pending
- 1969-04-21 GB GB1238574D patent/GB1238574A/en not_active Expired
- 1969-04-21 GB GB1238573D patent/GB1238573A/en not_active Expired
- 1969-04-21 US US818101A patent/US3677760A/en not_active Expired - Lifetime
- 1969-04-21 GB GB1238572D patent/GB1238572A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994729A (en) * | 1973-04-06 | 1976-11-30 | Fuji Photo Film Co., Ltd. | Method for processing photographic light-sensitive material |
| US4078932A (en) * | 1975-05-01 | 1978-03-14 | Agfa-Gevaert, N.V. | Hardening developers for silver halide photography |
| US4247625A (en) * | 1978-12-20 | 1981-01-27 | Eastman Kodak Company | Imaging processes, elements and compositions featuring dye-retaining binders for reaction products of cobalt complexes and aromatic dialdehyde |
| EP0022813B1 (en) * | 1978-12-20 | 1984-03-14 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Imaging composition featuring aromatic dialdehyde-retaining binders |
| US5441852A (en) * | 1991-12-27 | 1995-08-15 | Konica Corporation | Method of stabilizing a color silver halide image |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2006527A1 (enrdf_load_stackoverflow) | 1969-12-26 |
| DE1919603A1 (de) | 1969-10-30 |
| DE1919592A1 (de) | 1969-10-30 |
| DE1919604A1 (de) | 1969-10-30 |
| GB1238574A (enrdf_load_stackoverflow) | 1971-07-07 |
| GB1238573A (enrdf_load_stackoverflow) | 1971-07-07 |
| GB1238572A (enrdf_load_stackoverflow) | 1971-07-07 |
| BE731638A (enrdf_load_stackoverflow) | 1969-10-01 |
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