US3132943A - Rapid processing of photographic materials including the use of phosphate ions as anti-staining agents - Google Patents
Rapid processing of photographic materials including the use of phosphate ions as anti-staining agents Download PDFInfo
- Publication number
- US3132943A US3132943A US59196A US5919660A US3132943A US 3132943 A US3132943 A US 3132943A US 59196 A US59196 A US 59196A US 5919660 A US5919660 A US 5919660A US 3132943 A US3132943 A US 3132943A
- Authority
- US
- United States
- Prior art keywords
- solution
- layer
- photographic
- thiocyanate
- phosphate
- 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims description 5
- 238000012545 processing Methods 0.000 title description 13
- 239000000463 material Substances 0.000 title description 8
- 239000003795 chemical substances by application Substances 0.000 title description 4
- 238000010186 staining Methods 0.000 title 1
- 239000000243 solution Substances 0.000 claims description 38
- 229910052709 silver Inorganic materials 0.000 claims description 24
- 239000004332 silver Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- -1 SILVER HALIDE Chemical class 0.000 claims description 20
- 239000000839 emulsion Substances 0.000 claims description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 13
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 229940085991 phosphate ion Drugs 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 9
- 229910052783 alkali metal Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 8
- 235000019345 sodium thiosulphate Nutrition 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 235000011007 phosphoric acid Nutrition 0.000 description 7
- 239000004254 Ammonium phosphate Substances 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910000318 alkali metal phosphate Inorganic materials 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- 235000019289 ammonium phosphates Nutrition 0.000 description 6
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 5
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 5
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 4
- 150000003016 phosphoric acids Chemical class 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 3
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 3
- 238000011534 incubation Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-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
- 230000008901 benefit Effects 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 2
- 235000019838 diammonium phosphate Nutrition 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 2
- 235000019799 monosodium phosphate Nutrition 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 2
- 235000019801 trisodium phosphate Nutrition 0.000 description 2
- 239000005696 Diammonium phosphate Substances 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-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
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 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
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- CMCWWLVWPDLCRM-UHFFFAOYSA-N phenidone Chemical compound N1C(=O)CCN1C1=CC=CC=C1 CMCWWLVWPDLCRM-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 1
- 229940043349 potassium metabisulfite Drugs 0.000 description 1
- 235000010263 potassium metabisulphite Nutrition 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 238000005406 washing 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
- 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
- the stabilizing agents employed in the processes described are compounds which contain double-bonded sulfur or an SH linkage; for example, :alkali metal and ammonium thiocyanates and thiosulfates, thioureas, thioglycol-ic acid, etc. Rapidly-develice ployed will be dependent to some extent upon the amount of ferric iron contamination to be dealt with.
- a silver halide photographic emulsion preferably a gelatin-silver halide emulsion
- a suitable silver halide developing solution After development, the excess developing solution present on the surface of the print is removed by any convenient means such as squeegee, and then the print is treated with a stabilizing solution. Treatment with the stabilizing solution may be by immersion orby surface application.
- the purpose of the stabilizing agent in stabilizer solutions is to make the undeveloped silver halide substantially incapable of change on further light exposure.
- the stabilizing agent must be a compound which does not react with metallic silver to a substantial extent and which forms a light-stable, silver complex by reaction with the undeveloped silver halide oped prints which have been stabilized with alkali metal thiocyanates and ammonium thiocyanate, according to the prior art are known to be subject to the formation of a red stain in the ultimate print.
- the stain presumably results from traces of ferric ion in the processing system which forms a vividly red ferric ferri-thiocyanate complex.
- the presence of ferric iron has also tended to accelerate the rate at which the silver image is bleached photographic prints which have been rapidly developed and stabilized with thiocyanate solutions.
- the bleaching of the silver image by the action of ferric iron has accordingly also had the effect of decreasing the keeping life of rapidly processed photographic materials.
- an object of the present invention to provide a method for improving the quality of photographic prints obtained by methods of rapid processing. Another object is to provide a method of preventing stain in rapidly processed photographic materials. A further object is to provide a method for improving the stability of rapidly developed silver images. Other objects will appear hereinafter.
- a soluble phosphoric acid compound such as an alkali metal phosphate, an ammonium phosphate or phosphoric acid.
- the ferric ferrithiocyanate complex which is vividly red in color is prevented in photographic layers where such layers are treated with a solution containing at least one of the phosphoric acid compounds.
- the soluble phosphates can be incorporated in the thiocyanate-containing stabilizing solution directly or they can be contained in a separate treating bath.
- the concentration of the soluble phosphate in the treating bath does not appear to be critical, and additions of such phosphates as di-sodium orthophosphate ('Na HPO in the range from about 5 to about 100 grams per liter of treating solution have given satisfactory results.
- the preferred range is that range of quantities which give from about 3 to about 70 grams of P0 radical when added to 1 liter of treating solution; for average purposes 10 to 30 grams are suitable.
- the quantity emin the emulsion layer.
- Suitable thiocyanate stabilizing agents useful in this invention and rapid processing methods and solutions using such agents are described in Broughton et .al., US. Patent 2,614,927, issued October 21, 1952.
- the thiocyanate-containing stabilizing solutions according to the present invention can have incorporated therein a small amount of an alkali metal thiosulfate, or ammonium thiosulfate wherein an improvement in silver image stability is obtained. It was found that the amount of thiosulfate in a thiocyanate containing stabilizing solution to improve the silver images stabilized thereby can vary widely. Suitable proportions were found to vary from about 1 percent to about 25 percent by weight of the amount of thiocyanate compound present, with preferred amounts of thiosulfate to thiocyanate in the range from about 2 percent to about 10 percent by Weight.
- the water-soluble phosphate compounds which are used to treat photographic layers stabilized with thiocyanatecontaining solutions according to the invention comprise; primary alkalimetal orthophosphates, e.g., sodium dihydrogen phosphate (NaI-I PO secondary alkali-metal orthophosphates, e.g., di-sodium hydrogen phosphate (Na HPO tertiary alkali-metal orthophosphates, e.g., trisodium phosphate (Na PO potassium phosphates, ammonium phosphates, e.g., ammonium dihydrogen phosphate (NH H PO and diammonium phosphate and solutions of phosphoric acid such as metaphosphoric acid, orthophosphoric acid, and pyrophosphoric acid.
- primary alkalimetal orthophosphates e.g., sodium dihydrogen phosphate (NaI-I PO secondary alkali-metal orthophosphates, e.g., di-sodium hydrogen phosphate (N
- the water-soluble phosphoric acid compounds are incorporated directly into a thiocyanate-containingstabilizing solution.
- a separate treating bath containing the water-soluble phosphoric acid compounds can also be employed.
- the stabilizing bath acid it is preferred to make the stabilizing bath acid to counteract alkali present in the developing solution.
- a simplified stabilizer solution can be employed which uses sodium di-hydrogen phosphate to give the necessary acidity to the bath so that other acid producing additives are not required.
- photographic emulsions used in practicing this in: vention are generally of the developing out type. Suitable also are direct-positive emulsions such as those described in Kendall and Hill, US. Patent 2,541,472 issued February 13, 1951, and in Kendall et al., US. Patent 2,669,515 issued February 16, 1954.
- EXAMPLE 1 The following example illustrates a manner of treating a silver halide emulsion of the type described in Kendall and Woo-d, US Patent 2,669,515.
- the emulsion was exposed in a conventional manner, tor example, to a nega- 55 tive by contact or projection or if the subject is printed matter on a paper base, exposure was made by means of reflex printing methods. Thereafter the exposed element was processed by surface application of the following solutions in a small processing machine.
- the developed prints were then stabilized by treatment with a stabilizer of the following composition which contained disodium hydrogen onthophosphate according to the present invention.
- the pH of the above solution was 4.3 approximately. It was employed as a surface application treatment for from about 1 to about 2 seconds at 68 F. room temperature. After the stabilization treatment using Table II the prints produced thereby showed no red stain on storage and were more stable to image fading when placed in a 120 F. 75 percent relative humidity storage room for seven days.
- the control samples which were handled in the same manner as the test samples of this example except that the di-sodium hydrogen orthophosphate was omitted from the stabilizing solution, but the pH of which had been adjusted to 4.3 using dilute sodium hydroxide showed considerable red stain after the seven days storage period and had a reflection density of 0.95 as compared to a reflection density of 1.1 for the test prints.
- the reflection densities are relative image densities of the respective prints :as determined using a conventional reflection densitometer.
- EXAMPLE 2 The following example illustrates the manner of improving the quality of a rapid-processed photographic point where sodium di-hydrogen orthophosphate is used in a typical thiocyanate stabilizing solution.
- Example 2 An emulsion was prepared, exposed and developed as in Example 1. Thereafter the photographic element was treated with a stabilizing-stain-preventative solution of the following composition.
- the pH of the stabilizing solution was approximately 4.5. A surface application treatment of about 2 seconds was required to stabilize the photographic print. Improved results were obtained similar to those obtained using the stabilizer-stain-preventative composition of Example 1.
- Emulsions may be coated on paper or other opaque supports or on any of the well known transparent supports such as cellulose nitrate, cellulose acetate, polyethylene tereph-' economic advantage of rapid-processing will accordingly be more fully realized.
- a further advantage of the present invention is the improvement in stability to fading of silver images which is obtained according to the invention where the Water-soluble phosphoric acid compounds and sodium thiosulfate are incorporated in thiocyanate stabilizing compositions.
- a rapid process for producing a stable visible image in a photographic silver halide emulsion layer containing a latent image comprising developing said layer in a photographic silver halide developing solution, and immediately thereafter stabilizing said layer by applying an aqueous thiocyanate solution without substantial fixation and imbibing into said layer an aqueous solution containing phosphate ion, and drying said layer without further treatment.
- a rapid process for producing a stable visible image in a photographic silver halide emulsion layer containing a latent image comprising developing said layer in a photographic silver halide developing solution, and immediately thereafter stabilizing said layer by applying an aqueous solution containing a compound selected from the group consisting of alkali metal thiocyanates and ammonium thiocyanate Without substantial fixation, and thereafter imbibing into said layer an aqueous solution containing at least one compound selected from the group consisting of alkali metal phosphates, ammonium phosphates, and phosphoric acid, and drying said layer Without further treatment.
- a rapid process for producing a stable visible image in a photographic silver halide emulsion layer containing a latent image comprising developing said layer in a photographic silver halide developing solution, and immediate-1y thereafter stabilizing said layer by applying an aqueous solution containing (A) a compound selected from the group consisting of alkali metal thiocyanates and ammonium thiocyanate and (B) at least one compound selected -from the group consisting of alkali metal phosphates, ammonium phosphates, and phosphoric acid Without substantial fixation, and drying said layer Without further treatment.
- alkali metal phosphate is disodium hydrogen phosphate.
- alkali metal phosphate is sodium dihydrogen phosphate.
- alkali metal phosphate is trisodium phosphate.
- ammonium phosphate is ammonium dihydrogen phosv phate.
- ammonium phosphate is diammonium hydrogen phosphate.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB38347/59A GB931293A (en) | 1959-11-12 | 1959-11-12 | Improvements in photographic processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3132943A true US3132943A (en) | 1964-05-12 |
Family
ID=10402878
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US59196A Expired - Lifetime US3132943A (en) | 1959-11-12 | 1960-09-29 | Rapid processing of photographic materials including the use of phosphate ions as anti-staining agents |
| US59195A Expired - Lifetime US3137574A (en) | 1959-11-12 | 1960-09-29 | Stability of rapid-processed photographic prints |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US59195A Expired - Lifetime US3137574A (en) | 1959-11-12 | 1960-09-29 | Stability of rapid-processed photographic prints |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US3132943A (en(2012)) |
| BE (2) | BE596987A (en(2012)) |
| GB (2) | GB931293A (en(2012)) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3335004A (en) * | 1963-12-09 | 1967-08-08 | Eastman Kodak Co | Method for stabilization processing of color emulsions |
| US3854947A (en) * | 1973-05-16 | 1974-12-17 | E Ritchey | Process and solution for fixing an image on silver halide prints |
| US4046570A (en) * | 1975-06-13 | 1977-09-06 | Agfa-Gevaert N.V. | Hardening fixer for photographic silver halide material |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3326684A (en) * | 1962-04-06 | 1967-06-20 | Fuji Photo Film Co Ltd | Method for stabilizing developed photosensitive materials |
| GB1201621A (en) * | 1967-05-18 | 1970-08-12 | Agfa Gevaert Nv | Process for stabilizing developed photographic images |
| US4305524A (en) * | 1980-04-04 | 1981-12-15 | Champion International Corporation | Round ice cream carton lid |
| EP0426193B1 (en) * | 1989-11-02 | 1998-03-18 | Fuji Photo Film Co., Ltd. | Silver halide photographic material and processing solution and process for the processing thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2126349A (en) * | 1936-06-12 | 1938-08-09 | Eastman Kodak Co | Photographic developing and fixing solution |
| US2203903A (en) * | 1938-07-15 | 1940-06-11 | American Cyanamid Co | Stabilized photographic fixing powder |
| US2409107A (en) * | 1942-10-16 | 1946-10-08 | Eastman Kodak Co | Processing of certain nongelatin emulsions |
| US2475134A (en) * | 1945-11-08 | 1949-07-05 | Gen Aniline & Film Corp | Sulfite antistain bath for multilayer color film |
| GB629608A (en) * | 1945-08-27 | 1949-09-23 | Kodak Ltd | Improvements in the processing of photographic materials |
| US2515121A (en) * | 1945-11-08 | 1950-07-11 | Gen Aniline & Film Corp | Process for preventing stains in photographic color material by treatment with basic acids immediately prior to drying |
| US2614927A (en) * | 1949-06-01 | 1952-10-21 | Eastman Kodak Co | Rapid processing of photographic materials |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB561875A (en) * | 1942-12-03 | 1944-06-08 | John David Kendall | Improvements in or relating to photographic materials |
| GB851816A (en) * | 1956-06-04 | 1960-10-19 | Kodak Ltd | Light-sensitive silver halide emulsions |
| BE570978A (en(2012)) * | 1957-09-09 | |||
| US2933388A (en) * | 1957-10-03 | 1960-04-19 | Eastman Kodak Co | Tetrazaindene compounds and photographic application |
| US2928735A (en) * | 1958-11-05 | 1960-03-15 | Eastman Kodak Co | Photographic emulsions containing an antifoggant and antiplumming agent |
| US3093479A (en) * | 1958-12-12 | 1963-06-11 | Eastman Kodak Co | Use of quaternary ammonium compounds for stabilizing processed photographic elements |
-
0
- BE BE596988D patent/BE596988A/xx unknown
- BE BE596987D patent/BE596987A/xx unknown
-
1959
- 1959-11-12 GB GB38347/59A patent/GB931293A/en not_active Expired
- 1959-11-12 GB GB38912/60A patent/GB931294A/en not_active Expired
-
1960
- 1960-09-29 US US59196A patent/US3132943A/en not_active Expired - Lifetime
- 1960-09-29 US US59195A patent/US3137574A/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2126349A (en) * | 1936-06-12 | 1938-08-09 | Eastman Kodak Co | Photographic developing and fixing solution |
| US2203903A (en) * | 1938-07-15 | 1940-06-11 | American Cyanamid Co | Stabilized photographic fixing powder |
| US2409107A (en) * | 1942-10-16 | 1946-10-08 | Eastman Kodak Co | Processing of certain nongelatin emulsions |
| GB629608A (en) * | 1945-08-27 | 1949-09-23 | Kodak Ltd | Improvements in the processing of photographic materials |
| US2475134A (en) * | 1945-11-08 | 1949-07-05 | Gen Aniline & Film Corp | Sulfite antistain bath for multilayer color film |
| US2515121A (en) * | 1945-11-08 | 1950-07-11 | Gen Aniline & Film Corp | Process for preventing stains in photographic color material by treatment with basic acids immediately prior to drying |
| US2614927A (en) * | 1949-06-01 | 1952-10-21 | Eastman Kodak Co | Rapid processing of photographic materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3335004A (en) * | 1963-12-09 | 1967-08-08 | Eastman Kodak Co | Method for stabilization processing of color emulsions |
| US3854947A (en) * | 1973-05-16 | 1974-12-17 | E Ritchey | Process and solution for fixing an image on silver halide prints |
| US4046570A (en) * | 1975-06-13 | 1977-09-06 | Agfa-Gevaert N.V. | Hardening fixer for photographic silver halide material |
Also Published As
| Publication number | Publication date |
|---|---|
| GB931293A (en) | 1963-07-17 |
| GB931294A (en) | 1963-07-17 |
| BE596987A (en(2012)) | |
| US3137574A (en) | 1964-06-16 |
| BE596988A (en(2012)) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4939073A (en) | Stablized method of light sensitive silver halide color photographic material | |
| US2614927A (en) | Rapid processing of photographic materials | |
| US3132943A (en) | Rapid processing of photographic materials including the use of phosphate ions as anti-staining agents | |
| US3042520A (en) | Bleaching bath for processing color film | |
| US2875048A (en) | Combined photographic developing and stabilizing solution | |
| US4119462A (en) | Color photographic developer composition | |
| US3647449A (en) | Neutralizing bath for use in photographic processing | |
| US2091689A (en) | Photographic hardening developer | |
| US3823017A (en) | Color photographic developer compositions | |
| GB988967A (en) | Improved coloured photographic images | |
| US5026629A (en) | Fixing bath for black and white photographic elements | |
| US3854948A (en) | New development composition for radiographic film | |
| US4046570A (en) | Hardening fixer for photographic silver halide material | |
| US3432298A (en) | Silver salt diffusion process | |
| US3271153A (en) | Photographic processing baths for stabilization processing | |
| US3829318A (en) | Photoprocessing stabilizer solutions | |
| US3694209A (en) | Process for the development of exposed photographic material containing silver halide | |
| US2599518A (en) | High contrast photographic developers | |
| US3775124A (en) | Stabilizing method and composition for color photographic processing | |
| JPH05503789A (ja) | 過剰の亜硫酸塩を含む漂白定着剤 | |
| US3802883A (en) | Stabilizer for silver halide light-sensitive material | |
| US2126504A (en) | Sensitized blue print paper and coating therefor | |
| US2860978A (en) | Photographic washing accelerators | |
| US3554748A (en) | Silver halide nucleating compositions containing ionic boron hydrides | |
| US3050392A (en) | Oxidation-stable developer compositions |