US3718468A - Stabilising developed photographic images - Google Patents
Stabilising developed photographic images Download PDFInfo
- Publication number
- US3718468A US3718468A US00024868A US3718468DA US3718468A US 3718468 A US3718468 A US 3718468A US 00024868 A US00024868 A US 00024868A US 3718468D A US3718468D A US 3718468DA US 3718468 A US3718468 A US 3718468A
- Authority
- US
- United States
- Prior art keywords
- silver
- compounds
- image
- developed
- stabilising
- 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
- 230000003019 stabilising effect Effects 0.000 title description 3
- 238000000034 method Methods 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 125000002947 alkylene group Chemical group 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- QPFVCZRPJLXDJI-UHFFFAOYSA-N cyclohexanone;sulfurous acid Chemical compound OS(O)=O.O=C1CCCCC1 QPFVCZRPJLXDJI-UHFFFAOYSA-N 0.000 claims description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 25
- 229910052709 silver Inorganic materials 0.000 abstract description 25
- 239000004332 silver Substances 0.000 abstract description 25
- -1 silver halide Chemical class 0.000 abstract description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 15
- 238000005562 fading Methods 0.000 abstract description 5
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- 239000000839 emulsion Substances 0.000 description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000012190 activator Substances 0.000 description 7
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 125000001841 imino group Chemical group [H]N=* 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229910021612 Silver iodide Inorganic materials 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 150000002391 heterocyclic compounds Chemical class 0.000 description 3
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 3
- 229940043349 potassium metabisulfite Drugs 0.000 description 3
- 235000010263 potassium metabisulphite Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 229940045105 silver iodide Drugs 0.000 description 3
- GGZHVNZHFYCSEV-UHFFFAOYSA-N 1-Phenyl-5-mercaptotetrazole Chemical compound SC1=NN=NN1C1=CC=CC=C1 GGZHVNZHFYCSEV-UHFFFAOYSA-N 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 229940101006 anhydrous sodium sulfite Drugs 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000000732 arylene group Chemical group 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 125000002993 cycloalkylene group Chemical group 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 150000003378 silver Chemical class 0.000 description 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 description 2
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical compound NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 description 1
- JLAMDELLBBZOOX-UHFFFAOYSA-N 3h-1,3,4-thiadiazole-2-thione Chemical compound SC1=NN=CS1 JLAMDELLBBZOOX-UHFFFAOYSA-N 0.000 description 1
- GCGFIFNQFLLJIR-UHFFFAOYSA-N 5-bromo-1-methylindole-2-carboxylic acid Chemical compound BrC1=CC=C2N(C)C(C(O)=O)=CC2=C1 GCGFIFNQFLLJIR-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000001828 Gelatine Substances 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
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000004956 cyclohexylene group Chemical group 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000004957 naphthylene group Chemical group 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 150000004986 phenylenediamines Chemical class 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 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
- 239000000047 product Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- NDGRWYRVNANFNB-UHFFFAOYSA-N pyrazolidin-3-one Chemical class O=C1CCNN1 NDGRWYRVNANFNB-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- JRZIYJSQQILHNO-UHFFFAOYSA-M sodium;1-hydroxycyclohexane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1(O)CCCCC1 JRZIYJSQQILHNO-UHFFFAOYSA-M 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 125000006839 xylylene group Chemical group 0.000 description 1
- 238000004383 yellowing Methods 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
- 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
- G03C1/43—Processing agents or their precursors, not covered by groups G03C1/07 - G03C1/42
-
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/38—Fixing; Developing-fixing; Hardening-fixing
- G03C5/39—Stabilising, i.e. fixing without washing out
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/164—Rapid access processing
Definitions
- ABSTRACT Exposed and developed pnotographic silver images can be stabilized by treating the layer containing the exposed image with a compound which reacts with the silver halide in the unexposed and undeveloped areas of the layer to form a light-insensitive reaction product. Fading of the silver images thus produced is prevented by performing the development in the presence of mercapto substituted heterocyclic compounds.
- the invention relates to a process for the production L of photographic images by exposure, development and subsequent stabilization, in which the development is carried out in the presence of heterocyclic mercapto compounds in order to improve the stability of the silver image even on prolonged storage under extreme climatic conditions.
- Fading of the black image area can be prevented by adding to the stabilizing bath heterocyclic mercapto compounds such as 1-phenyl-5-mercaptotetrazole.
- heterocyclic mercapto compounds such as 1-phenyl-5-mercaptotetrazole.
- the usual compounds of this type are only sparingly soluble in the acid stabilizer solutions so that it is difficult to apply a sufficient quantity of these compounds. They cannot be added in the required quantity to the emulsions because of their development inhibiting effect.
- Fading of the black image areas can also be prevented by adding to the emulsion compounds which only decompose in alkaline solution to yield a mercapto compound.
- Such compounds cannot be added to the emulsion in sufficient quantities to improve satisfactorily the keeping quality of the stabilized image on prolonged storage under extremeclimatic conditions.
- R and R together may represent the ring members required to to complete a Z-mercaptothiadiazole ring
- X -0, S- or R hydrogen, (2) alkyl having up to eight carbon atoms, preferably having one to three carbon atoms, (3) aryl, preferably a ring of the phenyl or naphthyl series; (4) aralkyl such as benzyl or phenyl ethyl; (5) cycloalkyl such as cyclohexyl and (6) amino; these radicals, in particular phenyl rings, may be further substituted, e.g. with halogen such as chlorine or bromine; alkyl or alkoxy groups having preferably up to 5 carbon atoms or hydroxyl groups;
- Y (l) alkylene having up to 10 methylene groups, in particular having 2 to 8 methylene groups; (2) cycloalkylene such as cyclohexylene; (3) arylene, in particular a phenylene or naphthylene ring; or (4) aralkylene, e.g. xylylene; Y may be attached to the heterocyclic ring either directly or through oxygen, sulfur or imino groups; furthermore, Y may represent an alkylene chain having three to 10 methylene groups which are interrupted by hetero atoms or groups such as oxygen, sulfur or imino groups.
- Emulsions which have a high silver chloride content are preferred.
- the binders for the light-sensitive layers may be the usual water-permeable layer-forming substances, particularly proteins, preferably gelatine.
- the emulsions may contain alkylene oxide polymerization products as chemical sensitizers. They may also contain the known stabilizers.
- the emulsions may contain developers or developer combinations of the type hydroquinone, pyrocatechol, aminophenol, compounds of the pyrazolidone series, phenylene diamine derivatives and the like, antioxidants for the developer, e.g. potassium metabisulfite, aldehyde and ketone bisulfite, matting agents and brightening agents.
- developers or developer combinations of the type hydroquinone, pyrocatechol, aminophenol, compounds of the pyrazolidone series, phenylene diamine derivatives and the like antioxidants for the developer, e.g. potassium metabisulfite, aldehyde and ketone bisulfite, matting agents and brightening agents.
- development is carried out in the usual manner, using known developers.
- the developer is added to the photographic material and development is initiated by treatment with an alkaline aqueous bath, hereinafter referred to as an activator bath.
- the concentration of the compounds for use according to the invention in the development bath may vary within wide limits. The concentration depends upon the photographic material used and the nature of the developer. The optimum concentrations for a particular reproduction process can be determined by a few simple laboratory tests. Amounts of 0.5 to 10 g per liter of treatment bath, preferably 1 to 5 g per liter, have generally been found to be sufficient.
- Suitable stabilizing agents i.e. compounds which are capable of converting the silver halide remaining after development into a compound which is not sensitive to light, have been described e.g. in British Pat. Nos. 631,184 or 959,807 and in U.S. Pat. No. 2,525,532 or French Pat. No. 1,237,454.
- Ammonium thiocyanate and alkali metal thiocyanates e.g. sodium or potassium thiocyanate, have been found to be particularly suitable.
- These stabilizing baths may also contain the usual other additives such as alkali metal sulfites or metabisulfites or cycloalkanone bisulfites, acetic acid or its salts and organic compounds, particularly additional heterocyclic compounds which contain mercapto groups, such as 1-phenyl-5-mercaptotetrazole, which form sparingly soluble silver salts.
- additives such as alkali metal sulfites or metabisulfites or cycloalkanone bisulfites, acetic acid or its salts and organic compounds, particularly additional heterocyclic compounds which contain mercapto groups, such as 1-phenyl-5-mercaptotetrazole, which form sparingly soluble silver salts.
- Example 1 A light-sensitive photographic material comprising a supported silver chloride gelatin emulsion layer which emulsion layer contains 0.2 mol of silver halide with a silver iodide content of less than 0.1 mol of silver iodide per kg of emulsion (amount of silver in the form of silver halide 1.3 g/m) and hydroquinone (12 g of hydroquinone per kg of emulsion) is exposed to form an image and developed in the following activator solution:
- the developed material is then treated with the following stabilizing solution:
- the samples are processed in a two-bath development apparatus customarily employed.
- the treatment time is about 1 to 5 seconds in the activator bath and about 2 to seconds in the stabilizing bath.
- the developed material is treated with the following stabilizer solution:
- Example 3 A light-sensitive photographic material comprising a supported silver bromide gelatin emulsion layer containing 0.26 mol of silver halide including 0.8 mol of silver iodide per kg of emulsion (amount of silver in the form of silver halide 2.5 g/m) and hydroquinone per kg of emulsion) is exposed to form an image and then treated as described in Example 1.
- Y an alkylene group having up to 10 methylene groups, cycloalkylene, arylene or aralkylene, Y I 1 being attached to the heterocyclic ring either I directly or via oxygen, sulfur or imino groups, R2N -SH furthermore, Y may represent an alkylene chain H X X having three to methylene groups which are in- HS Y SH 10 terrupted by hetero atoms such as oxygen, sulfur J fly I or imino groups.
- the stabilizing h i bath in addition contains cyclohexanone bisulfite.
- R i a mercapto group;
- X represents R is an amino group or R taken together with R represents the ring members required to complete a 2-mercaptothiadiazole /N R3 ring;
- X S or and Y alkylene having three to 10 methylene which are ⁇ N R3' interrupted by oxygen or sulfur.
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1919045A DE1919045C3 (de) | 1969-04-15 | 1969-04-15 | Verfahren zur Herstellung stabiler photographischer Bilder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3718468A true US3718468A (en) | 1973-02-27 |
Family
ID=5731240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00024868A Expired - Lifetime US3718468A (en) | 1969-04-15 | 1970-04-01 | Stabilising developed photographic images |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3718468A (de) |
| BE (1) | BE748626A (de) |
| CA (1) | CA933022A (de) |
| CH (1) | CH535976A (de) |
| DE (1) | DE1919045C3 (de) |
| FR (1) | FR2043405A5 (de) |
| GB (1) | GB1293622A (de) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981731A (en) * | 1974-11-09 | 1976-09-21 | Agfa-Gevaert, A.G. | Stabilization of developed photographic images |
| US4264721A (en) * | 1978-10-30 | 1981-04-28 | Konishiroku Photo Industry Co., Ltd. | Color photographic materials |
| US4624995A (en) * | 1985-04-09 | 1986-11-25 | Minnesota Mining And Manufacturing Company | Triazolinethione-containing polymer |
| US4740568A (en) * | 1985-04-09 | 1988-04-26 | Minnesota Mining And Manufacturing Company | Triazolinethione-containing polymer |
| US4960683A (en) * | 1987-06-29 | 1990-10-02 | Fuji Photo Film Co., Ltd. | Method for processing a black-and-white photosensitive material |
| US4987059A (en) * | 1988-12-01 | 1991-01-22 | Agfa-Gevaert Aktiengesellschaft | Process for stabilizing photographic silver images |
| EP0809147A1 (de) * | 1996-05-20 | 1997-11-26 | Eastman Kodak Company | Photographische Entwicklerzusammensetzung, die ein Mittel zur Vermeidung von Ablagerungen enthält und dessen Verwendung in der Hochkontrastentwicklung von mit einem Keimbildner behandelten photographischen Elementen |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950976B2 (ja) * | 1977-02-01 | 1984-12-11 | コニカ株式会社 | 高コントラスト銀画像の形成方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432506A (en) * | 1943-11-26 | 1947-12-16 | Ilford Ltd | Treatment of developed silver images with mercapto-tetrazole and triazole compounds |
| US2514650A (en) * | 1946-04-05 | 1950-07-11 | Eastman Kodak Co | Photographic developing with addition products to improve image quality |
| GB959182A (en) * | 1960-07-27 | 1964-05-27 | Agfa Ag | A process of preventing darkening and the formation of precipitates in photographic developers |
| US3239340A (en) * | 1963-02-18 | 1966-03-08 | Fuji Photo Film Co Ltd | Method for stabilizing developed photosensitive materials |
| US3362826A (en) * | 1963-04-27 | 1968-01-09 | Agfa Ag | Photographic paper containing yellow fog-preventing agents |
| FR1514667A (fr) * | 1966-03-15 | 1968-02-23 | Agfa Gevaert Ag | éléments photographiques contenant des inhibiteurs du bronzage |
| US3438777A (en) * | 1966-02-14 | 1969-04-15 | Agfa Gevaert Nv | Photographic material |
-
1969
- 1969-04-15 DE DE1919045A patent/DE1919045C3/de not_active Expired
-
1970
- 1970-03-26 CH CH459370A patent/CH535976A/de unknown
- 1970-04-01 US US00024868A patent/US3718468A/en not_active Expired - Lifetime
- 1970-04-02 CA CA078954A patent/CA933022A/en not_active Expired
- 1970-04-08 BE BE748626D patent/BE748626A/nl unknown
- 1970-04-15 GB GB07945/70A patent/GB1293622A/en not_active Expired
- 1970-04-15 FR FR7013645A patent/FR2043405A5/fr not_active Expired
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432506A (en) * | 1943-11-26 | 1947-12-16 | Ilford Ltd | Treatment of developed silver images with mercapto-tetrazole and triazole compounds |
| US2514650A (en) * | 1946-04-05 | 1950-07-11 | Eastman Kodak Co | Photographic developing with addition products to improve image quality |
| GB959182A (en) * | 1960-07-27 | 1964-05-27 | Agfa Ag | A process of preventing darkening and the formation of precipitates in photographic developers |
| US3212892A (en) * | 1960-07-27 | 1965-10-19 | Agfa Ag | Preventing darkening and formation of precipitates in solutions of photographic developers |
| US3239340A (en) * | 1963-02-18 | 1966-03-08 | Fuji Photo Film Co Ltd | Method for stabilizing developed photosensitive materials |
| US3362826A (en) * | 1963-04-27 | 1968-01-09 | Agfa Ag | Photographic paper containing yellow fog-preventing agents |
| US3438777A (en) * | 1966-02-14 | 1969-04-15 | Agfa Gevaert Nv | Photographic material |
| FR1514667A (fr) * | 1966-03-15 | 1968-02-23 | Agfa Gevaert Ag | éléments photographiques contenant des inhibiteurs du bronzage |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981731A (en) * | 1974-11-09 | 1976-09-21 | Agfa-Gevaert, A.G. | Stabilization of developed photographic images |
| US4264721A (en) * | 1978-10-30 | 1981-04-28 | Konishiroku Photo Industry Co., Ltd. | Color photographic materials |
| US4624995A (en) * | 1985-04-09 | 1986-11-25 | Minnesota Mining And Manufacturing Company | Triazolinethione-containing polymer |
| US4740568A (en) * | 1985-04-09 | 1988-04-26 | Minnesota Mining And Manufacturing Company | Triazolinethione-containing polymer |
| EP0197701A3 (de) * | 1985-04-09 | 1989-05-03 | Minnesota Mining And Manufacturing Company | Triazolinthion enthaltende Polymere |
| US4960683A (en) * | 1987-06-29 | 1990-10-02 | Fuji Photo Film Co., Ltd. | Method for processing a black-and-white photosensitive material |
| US4987059A (en) * | 1988-12-01 | 1991-01-22 | Agfa-Gevaert Aktiengesellschaft | Process for stabilizing photographic silver images |
| EP0809147A1 (de) * | 1996-05-20 | 1997-11-26 | Eastman Kodak Company | Photographische Entwicklerzusammensetzung, die ein Mittel zur Vermeidung von Ablagerungen enthält und dessen Verwendung in der Hochkontrastentwicklung von mit einem Keimbildner behandelten photographischen Elementen |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1919045B2 (de) | 1979-03-15 |
| DE1919045A1 (de) | 1970-10-22 |
| BE748626A (nl) | 1970-10-08 |
| CH535976A (de) | 1973-04-15 |
| GB1293622A (en) | 1972-10-18 |
| CA933022A (en) | 1973-09-04 |
| DE1919045C3 (de) | 1979-11-15 |
| FR2043405A5 (de) | 1971-02-12 |
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