US3893858A - Photographic bleach accelerators - Google Patents
Photographic bleach accelerators Download PDFInfo
- Publication number
- US3893858A US3893858A US345148A US34514873A US3893858A US 3893858 A US3893858 A US 3893858A US 345148 A US345148 A US 345148A US 34514873 A US34514873 A US 34514873A US 3893858 A US3893858 A US 3893858A
- Authority
- US
- United States
- Prior art keywords
- bleach
- photographic
- thiol
- fixing
- salt
- 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
- 239000007844 bleaching agent Substances 0.000 title claims abstract description 73
- 239000002253 acid Substances 0.000 claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- UOMQUZPKALKDCA-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OC(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UOMQUZPKALKDCA-UHFFFAOYSA-K 0.000 claims abstract description 11
- 238000011161 development Methods 0.000 claims abstract description 10
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 8
- YBDSNEVSFQMCTL-UHFFFAOYSA-N 2-(diethylamino)ethanethiol Chemical compound CCN(CC)CCS YBDSNEVSFQMCTL-UHFFFAOYSA-N 0.000 claims abstract description 7
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000000203 mixture Substances 0.000 claims description 52
- 150000003573 thiols Chemical class 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 28
- 150000003839 salts Chemical class 0.000 claims description 26
- 229910052709 silver Inorganic materials 0.000 claims description 26
- 239000004332 silver Substances 0.000 claims description 26
- LEVWYRKDKASIDU-IMJSIDKUSA-N L-cystine Chemical compound [O-]C(=O)[C@@H]([NH3+])CSSC[C@H]([NH3+])C([O-])=O LEVWYRKDKASIDU-IMJSIDKUSA-N 0.000 claims description 10
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 claims description 9
- 229960003067 cystine Drugs 0.000 claims description 8
- OOTFVKOQINZBBF-UHFFFAOYSA-N cystamine Chemical compound CCSSCCN OOTFVKOQINZBBF-UHFFFAOYSA-N 0.000 claims description 7
- 229940099500 cystamine Drugs 0.000 claims description 7
- 229960002433 cysteine Drugs 0.000 claims description 7
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims description 7
- 235000018417 cysteine Nutrition 0.000 claims description 7
- IFQSXNOEEPCSLW-DKWTVANSSA-N L-cysteine hydrochloride Chemical compound Cl.SC[C@H](N)C(O)=O IFQSXNOEEPCSLW-DKWTVANSSA-N 0.000 claims description 5
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical group [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 claims description 5
- 230000006872 improvement Effects 0.000 claims description 5
- SFMJZJSASOMSOL-UHFFFAOYSA-N 1-(dimethylamino)propane-1-thiol;hydrochloride Chemical compound Cl.CCC(S)N(C)C SFMJZJSASOMSOL-UHFFFAOYSA-N 0.000 claims description 2
- OGMADIBCHLQMIP-UHFFFAOYSA-N 2-aminoethanethiol;hydron;chloride Chemical compound Cl.NCCS OGMADIBCHLQMIP-UHFFFAOYSA-N 0.000 claims description 2
- NGDIAZZSCVVCEW-UHFFFAOYSA-M sodium;butyl sulfate Chemical compound [Na+].CCCCOS([O-])(=O)=O NGDIAZZSCVVCEW-UHFFFAOYSA-M 0.000 claims description 2
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 claims 3
- -1 aliphatic thiols Chemical class 0.000 abstract description 29
- 238000004061 bleaching Methods 0.000 abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 48
- 239000000243 solution Substances 0.000 description 28
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 18
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 15
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 12
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 11
- 229960000583 acetic acid Drugs 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 239000012362 glacial acetic acid Substances 0.000 description 7
- 235000010265 sodium sulphite Nutrition 0.000 description 6
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- 239000008098 formaldehyde solution Substances 0.000 description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 description 4
- 235000011152 sodium sulphate Nutrition 0.000 description 4
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 4
- CMBJWSUWPPPZTH-UHFFFAOYSA-N 1-(diethylamino)ethanethiol;hydrochloride Chemical compound Cl.CCN(CC)C(C)S CMBJWSUWPPPZTH-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 3
- 239000001488 sodium phosphate Substances 0.000 description 3
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 description 3
- UTPHRZRWMXLNIK-UHFFFAOYSA-N 2-[di(propan-2-yl)amino]ethanethiol;hydron;chloride Chemical compound Cl.CC(C)N(C(C)C)CCS UTPHRZRWMXLNIK-UHFFFAOYSA-N 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 229910001516 alkali metal iodide Inorganic materials 0.000 description 2
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 2
- 229940040526 anhydrous sodium acetate Drugs 0.000 description 2
- XNSQZBOCSSMHSZ-UHFFFAOYSA-K azane;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate;iron(3+) Chemical compound [NH4+].[Fe+3].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O XNSQZBOCSSMHSZ-UHFFFAOYSA-K 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- TVHALOSDPLTTSR-UHFFFAOYSA-H hexasodium;[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O TVHALOSDPLTTSR-UHFFFAOYSA-H 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000004682 monohydrates Chemical class 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 2
- QYSXJUFSXHHAJI-YRZJJWOYSA-N vitamin D3 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C\C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-YRZJJWOYSA-N 0.000 description 2
- LLCOQBODWBFTDD-UHFFFAOYSA-N 1h-triazol-1-ium-4-thiolate Chemical class SC1=CNN=N1 LLCOQBODWBFTDD-UHFFFAOYSA-N 0.000 description 1
- TZMVSJNOQJXJMO-UHFFFAOYSA-N 2-[1,2,2-tris(carboxymethyl)cyclohexyl]acetic acid Chemical compound OC(=O)CC1(CC(O)=O)CCCCC1(CC(O)=O)CC(O)=O TZMVSJNOQJXJMO-UHFFFAOYSA-N 0.000 description 1
- WYMDDFRYORANCC-UHFFFAOYSA-N 2-[[3-[bis(carboxymethyl)amino]-2-hydroxypropyl]-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)CN(CC(O)=O)CC(O)=O WYMDDFRYORANCC-UHFFFAOYSA-N 0.000 description 1
- ZIUZDRMIXJKUNY-UHFFFAOYSA-N 3-[2-carboxyethyl(ethyl)amino]propanoic acid Chemical compound OC(=O)CCN(CC)CCC(O)=O ZIUZDRMIXJKUNY-UHFFFAOYSA-N 0.000 description 1
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 1
- 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 1
- BDDLHHRCDSJVKV-UHFFFAOYSA-N 7028-40-2 Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O BDDLHHRCDSJVKV-UHFFFAOYSA-N 0.000 description 1
- CSGQJHQYWJLPKY-UHFFFAOYSA-N CITRAZINIC ACID Chemical compound OC(=O)C=1C=C(O)NC(=O)C=1 CSGQJHQYWJLPKY-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 241000483002 Euproctis similis Species 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
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- SJOOOZPMQAWAOP-UHFFFAOYSA-N [Ag].BrCl Chemical compound [Ag].BrCl SJOOOZPMQAWAOP-UHFFFAOYSA-N 0.000 description 1
- HOLVRJRSWZOAJU-UHFFFAOYSA-N [Ag].ICl Chemical compound [Ag].ICl HOLVRJRSWZOAJU-UHFFFAOYSA-N 0.000 description 1
- XFJJBRGCDWWBMV-UHFFFAOYSA-L [S-]C#N.[Na+].[Br-].[Na+] Chemical compound [S-]C#N.[Na+].[Br-].[Na+] XFJJBRGCDWWBMV-UHFFFAOYSA-L 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 229910001513 alkali metal bromide Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000011126 aluminium potassium sulphate Nutrition 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000000337 buffer salt Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000000326 densiometry Methods 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- FGRVOLIFQGXPCT-UHFFFAOYSA-L dipotassium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [K+].[K+].[O-]S([O-])(=O)=S FGRVOLIFQGXPCT-UHFFFAOYSA-L 0.000 description 1
- UCNMSHWTBMDEPY-UHFFFAOYSA-L disodium benzene-1,4-diol carbonate Chemical compound C([O-])([O-])=O.[Na+].C1(O)=CC=C(O)C=C1.[Na+] UCNMSHWTBMDEPY-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- TYZVRCWJCJVTRC-UHFFFAOYSA-L disodium;butanedial;hydrogen sulfite Chemical compound [Na+].[Na+].OS([O-])=O.OS([O-])=O.O=CCCC=O TYZVRCWJCJVTRC-UHFFFAOYSA-L 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- IWBOPFCKHIJFMS-UHFFFAOYSA-N ethylene glycol bis(2-aminoethyl) ether Chemical compound NCCOCCOCCN IWBOPFCKHIJFMS-UHFFFAOYSA-N 0.000 description 1
- OUDSFQBUEBFSPS-UHFFFAOYSA-N ethylenediaminetriacetic acid Chemical compound OC(=O)CNCCN(CC(O)=O)CC(O)=O OUDSFQBUEBFSPS-UHFFFAOYSA-N 0.000 description 1
- YAGKRVSRTSUGEY-UHFFFAOYSA-N ferricyanide Chemical compound [Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] YAGKRVSRTSUGEY-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 150000004688 heptahydrates Chemical class 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- POCUPXSSKQAQRY-UHFFFAOYSA-N hydroxylamine;hydrate Chemical compound O.ON POCUPXSSKQAQRY-UHFFFAOYSA-N 0.000 description 1
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 description 1
- 229940006461 iodide ion Drugs 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229940050271 potassium alum Drugs 0.000 description 1
- GNHOJBNSNUXZQA-UHFFFAOYSA-J potassium aluminium sulfate dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GNHOJBNSNUXZQA-UHFFFAOYSA-J 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 1
- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- HQAITFAUVZBHNB-UHFFFAOYSA-N sodium;pentahydrate Chemical compound O.O.O.O.O.[Na] HQAITFAUVZBHNB-UHFFFAOYSA-N 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 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
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting 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
- 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
- G03C7/42—Bleach-fixing or agents therefor ; Desilvering processes
- G03C7/421—Additives other than bleaching or fixing agents
Definitions
- Certain aliphatic thiols such as diethylaminoethanethiol, are useful as bleach accelerators in processing of Cl 96/60 96/60 BF photographic elements using aminopolycarboxylic [51] Int. Cl. 603C 5/32; G036 7/16 acid bleaching agents, such as the ammonium salt of Field of Search 96/60 60 22 ferric ethylenediaminetetraacetic acid.
- the aliphatic thiol can be incorporated in the bleaching bath, or in References Ciled a bleach-fixing bath which contains a fixing agent such UNITED STATES PATENTS as a thiosulfate in addition to the aminopolycarboxylic 3 512 979 5/1970 Nagae 96/55 acid bleaching'agem or it be addfid a Pfebath 3I6
- I I I I I I g M 96/61 M which is used to treat the photographic element after 3,639,272 9/1972 Schwan 1 96/60 BF color development and prior to the bleaching or 3,706,561 12/1972 Mowrey et al. 96/60 R bleach-fixing step.
- This invention relates in general to photographic processing and in particular to methods and compositions for the bleaching of photographic silver. More specifically, this invention relates to the use of bleach accelerators for improving the effectiveness of bleaching and bleach-fixing compositions.
- a suitable oxidizing agent commonly referred to as a bleaching agent
- a fixing agent dissolving the silver halide so formed in a silver halide solvent
- the bleaching agent and fixing agent can be combined in a bleachfixing solution and the silver removed in one step by use of such solution.
- bleaching agents are known for use in photographic processing, for example, ferricyanide bleaching agents and dichromate bleaching agents.
- aminopolycarboxylic acid bleaching agents are preferred from an ecological point of view because they present fewer problems in regard to disposal of waste processing solutions in which they are present.
- the aminopolycarboxylic acid bleaching agents suffer from the disadvantage that they provide a bleaching action which is undesirably slow for use in many photographic processes. It is toward the objective of overcoming this problem by the provision of compounds which function effectively to accelerate the bleaching action of aminopolycarboxylic acid bleaching agents that the present invention is directed.
- the thiol can be incorporated in a bleach bath containing the aminopolycarboxylic acid bleaching agent or in a bleach-fixing bath which contains both the aminopolycarboxylic acid bleaching agent and a fixing agent.
- the thiol can be incorporated in a prebath which is used to treat the photographic element after color development and prior to the bleaching or bleach-fixing step.
- thiol as employed herein is intended to include precursors which split to form a thiol compound in solution. ln carrying out the present invention, the thiol compound can be employed in any amount sufficient to accelerate the bleaching action. It will usually be utilized in the form of a salt, such as an alkali metal or ammonium salt, or the hydrochloride salt, to improve the solubility in the processing solution.
- a salt such as an alkali metal or ammonium salt, or the hydrochloride salt
- thiols which are useful for the purposes of this invention are the following:
- R and R is H, CH or C H and n is an integer having a value of from 1 to 3.
- aminoalkylenethiols of the formula given above are the following:
- 2-aminoethanethiol 3-aminopropanethiol dimethylaminoethanethiol dimethylaminopropanethiol N-methyl-N-ethyl-aminoethanethiol and diethylaminoethanethiol.
- aminopolycarboxylic acid bleaching agents which are used as components of the bleaching compositions and bleachfixing compositions of this invention are well known bleaching agents. They are typically utilized in the form of water-soluble salts, such as ammonium or alkali metal salts, of a ferric aminopolycarboxylic acid complex.
- a typical example is the ammonium salt of ferric ethylenediaminetetraacetic acid (Nl-LFeEDTA), which is also known as ammonium ethylenedinitrilotetraacetato ferrate (Ill).
- Nl-LFeEDTA ferric ethylenediaminetetraacetic acid
- Ill ammonium ethylenedinitrilotetraacetato ferrate
- Many other aminopolycarboxylic acids in addition to ethylenediamine tetraacetic acid are also useful such as, for example:
- aminopolyacetic acids are preferred as they are readily available and provide particularly good bleaching action.
- the bleach compositions of this invention will generally contain about 5 to about 400 grams per liter of the aminopolycarboxylic acid bleaching agent and more preferably about ID to about 200 grams per liter.
- the bleach-fix compositions contain a fixing agent, such as a water-soluble thiosulfate fixing agent, in addition to the aminopolycarboxylic acid bleaching agent.
- thiosulfates which are useful as fixing agents include ammonium thiosulfate and alkali metal thiosulfates such as sodium thiosulfate and potassium thiosulfate.
- the bleach-fixing compositions will contain about 5 to about 400 grams, and more preferably about 10 to about 200 grams, of the aminopolycarboxylic acid bleaching agent per liter of solution and about 5 to about 400 grams, and more preferably about 10 to about 200 grams, of the fixing agent per liter of solution.
- the bleach or bleach-fix compositions can contain other addenda known to the art to be useful in such formulations, such as amines, sulfites, mercaptotriazoles, alkali metal bromides, alkali metal iodides and the like.
- An additional silver halide solvent such as a watersoluble thiocyanate, e.g., ammonium thiocyanate, sodium thiocyanate or potassium thiocyanate, can be included in the bleach-fix compositions if desired.
- the bleach-fix composition can also contain a non-chelated salt of an aminopolycarboxylic acid, e.g., sodium salts of ethylenediaminetetraacetic acid, in addition to the ferric salt.
- the thiol or salt of the thiol can be employed in accordance with this invention in any bleach-accelerating amount.
- it is incorporated in the bleach or bleach-fixing bath it is generally employed in an amount of from about 0.1 to about 20 grams per liter and more preferably from about 0.5 to about 5 grams per liter.
- it is employed in a prebath for treating the photographic element after color development and prior to bleaching or bleach-fixing it can also be utilized in these same amounts.
- the prebath can be simply an aqueous solution of the thiol or it can additionally contain other addenda such as sulfites, alkali metal iodides, and buffer salts.
- the thiol can be used in salt form to provide improved solubility in the prebath, bleach bath, or bleach-fix bath.
- the thiol may be provided in the form ofa precursor, such as cystine, which splits to yield a thiol when dissolved in the processing bath.
- the bleach accelerators described herein can be used in the processing of photographic elements designed for reversal color processing or in the processing of negative color elements or color print materials. They can be employed with photographic elements which are processed in color developers containing couplers or with photographic elements which contain the coupler in the silver halide emulsion layers or in layers contiguous thereto.
- the photosensitive layers present in the photographic elements processed according to the method of this invention can contain any of the conventional silver halides as the photosensitive material, for example, silver chloride, silver bromide, silver bromoiodide, silver chlorobromide, silver chloroiodide, silver chlorobromoiodide, and mixtures thereof.
- These layers can contain conventional addenda and be coated on any of the photographic supports, such as, for example, cellulose nitrate film, cellulose acetate film, polyvinyl acetal film, polycarbonate film, polystyrene film, polyethylene terephthalate film, paper, polymer-coated paper, and the like.
- the bleach accelerators of this invention are especially useful in that they provide substantial improvement in bleaching activity without causing undesirable fog formation. Also, while many of the five-membered heterocyclic ring thiols which are known to be bleach accelerators lose most of their activity if iodide ion is present in the bleach-fix solution or the prebath this is not the case with the aliphatic thiols described herein. Since it is often desirable to include iodides in such processing baths to avoid stain formation in the photographic element or to act as grain scrubbers," this is an important advantage.
- Afurther advantageous feature of the aliphatic thiols described herein is that they improve the ability of the bleaching agent to effect complete removal of all of the silver from the photographic element, whereas without the use of these thiols it is often very difficult to remove the last traces of silver even with prolonged bleaching times.
- EXAMPLE I A multilayer color negative photographic motion picture film (Eastman Color lnternegative Film, Type 5271) was sensitometrically exposed and processed in the following sequence. in which all processing steps were performed at 75F:
- the amount of silver left in the film after completion of the processing sequence was determined by infrared (900 nm.) densitometry.
- the infrared density of D,,,,, exposure was found to be 0.90 with a bleach-fixing time of 2 minutes. Increasing the bleach-fixing time to 4 minutes reduced the infrared density to 0.50 while increasing the bleach-fixing time to 8 minutes reduced the infrared density of 0.30.
- the compositions of the prebath, color developer, bleach-fix and stabilizer were the same as those of Example l.
- the stop bath was an aqueous solution having a pH of 3.1 and containing 6.5 grams per liter of sodium bisulfite and 245 milliliters per liter of glacial acetic acid.
- the fix bath was an aqueous solution having a pH of 6.7 and containing 13 grams per liter of sodium sulfite. 7 grams per liter of sodium bisulfite and 200 milliliters per liter of a 60 per cent solution of ammonium thiosulfate.
- the infrared density obtained was 0.06 as compared with 0.50 in the control test in which no diethylaminoethanethiol hydrochloride or potassium iodide were included in the bleach-fix.
- EXAMPLE I l A multilayer color reversal photographic motion picture film (Eastman Ektachrome R Print Film, Type 5389) was sensitometrically exposed and processed at F in the following standard process:
- compositions of the processing baths were as fol lows:
- Tertiarybutylamine 4-Amino-N-ethyl-N-(B-methanesulfonamidoethyl)-m-toluidine sesquisulfate monohydrate Second Stop Bath Water 800 ml. Glacial acetic acid 30.0 ml. Sodium hydroxide [.75 g. Water to one liter (pH 3.6)
- EXAMPLE 12 A multilayer color reversal photographic motion picture film (Eastman Ektachrome R Print Film, Type 5389) was sensitometrically exposed and processed in the following standard process:
- compositions of the processing baths were as follows:
- the prebath containing a bleach accelerator of the present invention greatly accelerates the bleaching action and is most effective at low pH values.
- An improved method of photographic processing in which an imagewise exposed and color developed photographic element is contacted with a ferric aminopolycarboxylic acid complex which functions as a bleaching agent to oxidize photographic silver and with a thiosulfate which functions as a fixing agent. wherein the improvement comprises contacting said element, subsequent to color development and prior to or simultaneously with the contact with said bleaching agent, with a bleach-accelerating amount of a thiol or a salt thereof, said thiol being selected from the group consisting of monothioglycerol,
- each of R and R is H, CH or C H and n is an integer having a value of from I to 3.
- bleaching agent is a water-soluble salt of ferric ethylenediaminetetraacetic acid.
- bleaching agent is the ammonium salt of ferric ethylenediaminetetraacetic acid.
- An improved method of photographic processing in which an imagewise exposed and color developed photographic element is contacted with a ferric aminopolycarboxylic acid complex which functions as a bleaching agent to oxidize photographic silver. wherein the improvement comprises contacting said element. after color development and prior to contact with a bleach bath containing said ferric aminopolycar boxylic acid complex, with a bath containing a bleachaccelerating amount of a thiol or a salt thereof, said thiol being selected from the group consisting of monothioglycerol,
- each of R and R is H, CH or C2H5 and n is an integer having a value of from I to 3.
- a photographic bleach-fixing composition containing a thiosulfate fixing agent, a ferric aminopolycarboxylic acid complex which functions as a bleaching agent to oxidize photographic silver, and a bleachaccelerating amount of a thiol or a salt thereof, said thiol being selected from the group consisting of monothioglycerol.
- R and R is H, CH or C H and n is an integer having a value of from 1 to 3.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of diethylaminoethanethiol.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of monothioglycerol.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of L-(+)-cysteine hydrochloride.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of L-(-)-cystine.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of 2-aminoethanethiol hydrochloride.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of cystamine dihydrochloride.
- a photographic bleach-fixing composition as claimed in claim 10 containing a bleach-accelerating amount of dimethylaminopropanethiol hydrochloride.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US345148A US3893858A (en) | 1973-03-26 | 1973-03-26 | Photographic bleach accelerators |
| CA191,959A CA1020389A (en) | 1973-03-26 | 1974-02-07 | Photographic bleach accelerators |
| FR7410038A FR2223727B1 (https=) | 1973-03-26 | 1974-03-25 | |
| GB1336274A GB1466922A (en) | 1973-03-26 | 1974-03-26 | Photographic processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US345148A US3893858A (en) | 1973-03-26 | 1973-03-26 | Photographic bleach accelerators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3893858A true US3893858A (en) | 1975-07-08 |
Family
ID=23353744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US345148A Expired - Lifetime US3893858A (en) | 1973-03-26 | 1973-03-26 | Photographic bleach accelerators |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3893858A (https=) |
| CA (1) | CA1020389A (https=) |
| FR (1) | FR2223727B1 (https=) |
| GB (1) | GB1466922A (https=) |
Cited By (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230796A (en) * | 1978-01-18 | 1980-10-28 | E. I. Du Pont De Nemours And Company | High speed lithographic film element |
| US4242442A (en) * | 1978-10-19 | 1980-12-30 | Fuji Photo Film Co., Ltd. | Method for processing silver halide color photographic material |
| US4292401A (en) * | 1979-04-12 | 1981-09-29 | Fuji Photo Film Co., Ltd. | Bleaching composition for photographic processing |
| US4458010A (en) * | 1981-11-13 | 1984-07-03 | Fuji Photo Film Co., Ltd. | Process for bleaching color photographic sensitive materials |
| US4506007A (en) * | 1983-04-08 | 1985-03-19 | Fuji Photo Film Co., Ltd. | Method for processing color photographic materials |
| US4508816A (en) * | 1982-10-21 | 1985-04-02 | Fuji Photo Film Co., Ltd. | Method for bleaching color photosensitive material |
| JPS60244950A (ja) * | 1984-05-21 | 1985-12-04 | Fuji Photo Film Co Ltd | カラ−写真感光材料の処理方法 |
| JPS6175353A (ja) * | 1984-09-21 | 1986-04-17 | Fuji Photo Film Co Ltd | カラ−感光材料の処理方法 |
| JPS6175352A (ja) * | 1984-09-21 | 1986-04-17 | Fuji Photo Film Co Ltd | カラ−感光材料の処理方法 |
| US4596764A (en) * | 1984-07-03 | 1986-06-24 | Fuji Photo Film Co., Ltd. | Method of processing image-wise exposed silver halide color photographic material |
| JPS6280649A (ja) * | 1985-10-04 | 1987-04-14 | Fuji Photo Film Co Ltd | カラ−写真感光材料の処理方法 |
| EP0219113A2 (en) | 1985-10-15 | 1987-04-22 | Fuji Photo Film Co., Ltd. | Method of processing silver halide color photographic material |
| JPS62115158A (ja) * | 1985-11-13 | 1987-05-26 | Konishiroku Photo Ind Co Ltd | ハロゲン化銀カラ−写真感光材料の処理方法 |
| JPS62168159A (ja) * | 1986-01-20 | 1987-07-24 | Konishiroku Photo Ind Co Ltd | カラ−画像形成方法 |
| US4707434A (en) * | 1984-08-20 | 1987-11-17 | Konishiroku Photo Industry Co., Ltd. | Color image forming method comprising processing with a bleach-fixing solution |
| US4717647A (en) * | 1984-09-21 | 1988-01-05 | Fuji Photo Film Co., Ltd. | Method for processing silver halide photographic elements in a bleaching bath and a blixing bath |
| EP0253390A2 (en) | 1986-07-17 | 1988-01-20 | Fuji Photo Film Co., Ltd. | Photographic support and color photosensitive material |
| US4745048A (en) * | 1985-06-07 | 1988-05-17 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material and method of processing the same using an improved desilvering accelerator |
| US4780398A (en) * | 1986-08-28 | 1988-10-25 | Olin Hunt Specialty Products, Inc. | Bleaching composition and process for color photographic materials |
| US4812389A (en) * | 1985-09-25 | 1989-03-14 | Fuji Photo Film Co., Ltd. | Process for processing silver halide color photographic material containing DIR coupler having a group functioning as a development inhibitor |
| US4818673A (en) * | 1986-08-05 | 1989-04-04 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material |
| EP0313083A2 (en) | 1987-10-22 | 1989-04-26 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| EP0317983A2 (en) | 1987-11-27 | 1989-05-31 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| US4839262A (en) * | 1988-03-01 | 1989-06-13 | Eastman Kodak Company | Bleach-accelerating compositions comprising sorbitan ester compounds and use thereof in photographic color processing |
| EP0320939A2 (en) | 1987-12-15 | 1989-06-21 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| US4865956A (en) * | 1987-11-24 | 1989-09-12 | Eastman Kodak Company | Photographic elements containing a bleach accelerator precursor |
| US4921779A (en) * | 1988-12-19 | 1990-05-01 | Eastman Kodak Company | Bleach-accelerating compositions containing a dye-stabilizing agent and use thereof in photographic color processing |
| US4923784A (en) * | 1987-11-24 | 1990-05-08 | Eastman Kodak Company | Photographic elements containing a bleach accelerator precursor |
| US4975356A (en) * | 1988-12-19 | 1990-12-04 | Eastman Kodak Company | Bleach-accelerating compositions containing a dye-stabilizing agent and use thereof in photographic color processing |
| US5004677A (en) * | 1988-02-19 | 1991-04-02 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material |
| EP0435334A2 (en) | 1989-12-29 | 1991-07-03 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material containing yellow colored cyan coupler |
| EP0440195A2 (en) | 1990-01-31 | 1991-08-07 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| EP0452886A2 (en) | 1990-04-17 | 1991-10-23 | Fuji Photo Film Co., Ltd. | Method of processing a silver halide color photographic material |
| EP0456210A2 (en) | 1990-05-09 | 1991-11-13 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide photographic material and light-sensitive material for photographing |
| EP0476327A1 (en) | 1990-08-20 | 1992-03-25 | Fuji Photo Film Co., Ltd. | Data-retainable photographic film product and process for producing color print |
| EP0562476A1 (en) | 1992-03-19 | 1993-09-29 | Fuji Photo Film Co., Ltd. | A silver halide photographic emulsion and a photographic light-sensitive material |
| EP0563708A1 (en) | 1992-03-19 | 1993-10-06 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion and light-sensitive material using the same |
| EP0563985A1 (en) | 1992-04-03 | 1993-10-06 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| EP0631185A1 (en) | 1993-06-11 | 1994-12-28 | Fuji Photo Film Co., Ltd. | Method for continuously processing silver halide color photosensitive material |
| US5380629A (en) * | 1993-03-30 | 1995-01-10 | Eastman Kodak Company | Method of making and a photographic element containing bleach accelerator silver salts |
| EP0686875A1 (en) | 1994-06-09 | 1995-12-13 | Fuji Photo Film Co., Ltd. | Method of processing silver halide color photographic materials |
| EP0720049A2 (en) | 1990-05-09 | 1996-07-03 | Fuji Photo Film Co., Ltd. | Photographic processing composition and processing method using the same |
| EP0724194A1 (en) | 1995-01-30 | 1996-07-31 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| US5569443A (en) * | 1994-11-18 | 1996-10-29 | The Dow Chemical Company | Method for removing hydrogen sulfide from a gas using polyamino disuccinic acid |
| US5585226A (en) * | 1995-08-30 | 1996-12-17 | Eastman Kodak Company | Polyamino monoesuccinates for use in photographic processes |
| US5652085A (en) * | 1995-08-30 | 1997-07-29 | Eastman Kodak Company | Succinic acid derivative degradable chelants, uses and composition thereof |
| US5741555A (en) * | 1995-05-22 | 1998-04-21 | The Dow Chemical Company | Succinic acid derivative degradable chelants, uses and compositions thereof |
| US5821042A (en) * | 1996-06-26 | 1998-10-13 | Imation Corp. | Silver halide color photographic element having improved bleachability |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014494B1 (en) * | 1979-02-02 | 1982-05-12 | Agfa-Gevaert N.V. | Photographic imaging process and materials suitable therefor |
| JPS60125843A (ja) * | 1983-12-12 | 1985-07-05 | Fuji Photo Film Co Ltd | カラ−写真感光材料の処理方法 |
| JPS6150149A (ja) * | 1984-08-20 | 1986-03-12 | Konishiroku Photo Ind Co Ltd | ハロゲン化銀カラ−写真感光材料の処理方法 |
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| US3512979A (en) * | 1966-06-17 | 1970-05-19 | Fuji Photo Film Co Ltd | Process for development of photographic silver halide color materials |
| US3615513A (en) * | 1965-11-01 | 1971-10-26 | Eastman Kodak Co | Inhibition of silvering in photographic processing solutions |
| US3689272A (en) * | 1971-01-25 | 1972-09-05 | Eastman Kodak Co | Photographic color processes which yield either positive or negative silver-transfer images |
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- 1973-03-26 US US345148A patent/US3893858A/en not_active Expired - Lifetime
-
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- 1974-02-07 CA CA191,959A patent/CA1020389A/en not_active Expired
- 1974-03-25 FR FR7410038A patent/FR2223727B1/fr not_active Expired
- 1974-03-26 GB GB1336274A patent/GB1466922A/en not_active Expired
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| US3615513A (en) * | 1965-11-01 | 1971-10-26 | Eastman Kodak Co | Inhibition of silvering in photographic processing solutions |
| US3512979A (en) * | 1966-06-17 | 1970-05-19 | Fuji Photo Film Co Ltd | Process for development of photographic silver halide color materials |
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Cited By (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230796A (en) * | 1978-01-18 | 1980-10-28 | E. I. Du Pont De Nemours And Company | High speed lithographic film element |
| US4242442A (en) * | 1978-10-19 | 1980-12-30 | Fuji Photo Film Co., Ltd. | Method for processing silver halide color photographic material |
| US4292401A (en) * | 1979-04-12 | 1981-09-29 | Fuji Photo Film Co., Ltd. | Bleaching composition for photographic processing |
| US4458010A (en) * | 1981-11-13 | 1984-07-03 | Fuji Photo Film Co., Ltd. | Process for bleaching color photographic sensitive materials |
| US4508816A (en) * | 1982-10-21 | 1985-04-02 | Fuji Photo Film Co., Ltd. | Method for bleaching color photosensitive material |
| US4506007A (en) * | 1983-04-08 | 1985-03-19 | Fuji Photo Film Co., Ltd. | Method for processing color photographic materials |
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Also Published As
| Publication number | Publication date |
|---|---|
| FR2223727A1 (https=) | 1974-10-25 |
| GB1466922A (en) | 1977-03-09 |
| FR2223727B1 (https=) | 1979-04-20 |
| CA1020389A (en) | 1977-11-08 |
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