US3615534A - Photographic silver halide light-sensitive elements useful in preventing yellow fog - Google Patents
Photographic silver halide light-sensitive elements useful in preventing yellow fog Download PDFInfo
- Publication number
- US3615534A US3615534A US761858A US3615534DA US3615534A US 3615534 A US3615534 A US 3615534A US 761858 A US761858 A US 761858A US 3615534D A US3615534D A US 3615534DA US 3615534 A US3615534 A US 3615534A
- Authority
- US
- United States
- Prior art keywords
- silver halide
- photographic
- halide light
- yellow
- fogs
- 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
- -1 silver halide Chemical class 0.000 title claims abstract description 102
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 88
- 239000004332 silver Substances 0.000 title claims abstract description 88
- JEHKKBHWRAXMCH-UHFFFAOYSA-N benzenesulfinic acid Chemical compound O[S@@](=O)C1=CC=CC=C1 JEHKKBHWRAXMCH-UHFFFAOYSA-N 0.000 claims description 31
- 239000000839 emulsion Substances 0.000 claims description 28
- 150000003839 salts Chemical class 0.000 claims description 18
- CHLCPTJLUJHDBO-UHFFFAOYSA-M sodium;benzenesulfinate Chemical compound [Na+].[O-]S(=O)C1=CC=CC=C1 CHLCPTJLUJHDBO-UHFFFAOYSA-M 0.000 claims description 5
- XQMIKDLGFPLLLU-UHFFFAOYSA-M sodium;4-aminobenzenesulfinate Chemical compound [Na+].NC1=CC=C(S([O-])=O)C=C1 XQMIKDLGFPLLLU-UHFFFAOYSA-M 0.000 claims description 3
- KFZUDNZQQCWGKF-UHFFFAOYSA-M sodium;4-methylbenzenesulfinate Chemical compound [Na+].CC1=CC=C(S([O-])=O)C=C1 KFZUDNZQQCWGKF-UHFFFAOYSA-M 0.000 claims description 3
- JFXAUUFCZJYLJF-UHFFFAOYSA-M sodium;4-chlorobenzenesulfinate Chemical compound [Na+].[O-]S(=O)C1=CC=C(Cl)C=C1 JFXAUUFCZJYLJF-UHFFFAOYSA-M 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 abstract description 17
- 239000010410 layer Substances 0.000 description 47
- 230000015572 biosynthetic process Effects 0.000 description 20
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 14
- 229910001864 baryta Inorganic materials 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- NALMPLUMOWIVJC-UHFFFAOYSA-N n,n,4-trimethylbenzeneamine oxide Chemical compound CC1=CC=C([N+](C)(C)[O-])C=C1 NALMPLUMOWIVJC-UHFFFAOYSA-N 0.000 description 9
- 239000011697 sodium iodate Substances 0.000 description 9
- 229940032753 sodium iodate Drugs 0.000 description 9
- 235000015281 sodium iodate Nutrition 0.000 description 9
- 239000000654 additive Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 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 5
- 230000000052 comparative effect Effects 0.000 description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000000080 wetting agent Substances 0.000 description 5
- 229910052946 acanthite Inorganic materials 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 229940056910 silver sulfide Drugs 0.000 description 4
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 4
- 108010010803 Gelatin Proteins 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 239000008273 gelatin Substances 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 235000011852 gelatine desserts Nutrition 0.000 description 3
- QFWPJPIVLCBXFJ-UHFFFAOYSA-N glymidine Chemical compound N1=CC(OCCOC)=CN=C1NS(=O)(=O)C1=CC=CC=C1 QFWPJPIVLCBXFJ-UHFFFAOYSA-N 0.000 description 3
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- ZRDJERPXCFOFCP-UHFFFAOYSA-N azane;iodic acid Chemical compound [NH4+].[O-]I(=O)=O ZRDJERPXCFOFCP-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-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
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MLIWQXBKMZNZNF-KUHOPJCQSA-N (2e)-2,6-bis[(4-azidophenyl)methylidene]-4-methylcyclohexan-1-one Chemical compound O=C1\C(=C\C=2C=CC(=CC=2)N=[N+]=[N-])CC(C)CC1=CC1=CC=C(N=[N+]=[N-])C=C1 MLIWQXBKMZNZNF-KUHOPJCQSA-N 0.000 description 1
- CYXJEHCKVOQFOV-UHFFFAOYSA-N (4-amino-2-methylphenyl) hydrogen sulfate Chemical compound CC1=CC(N)=CC=C1OS(O)(=O)=O CYXJEHCKVOQFOV-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 229910021612 Silver iodide Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- SJOOOZPMQAWAOP-UHFFFAOYSA-N [Ag].BrCl Chemical compound [Ag].BrCl SJOOOZPMQAWAOP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- URGYLQKORWLZAQ-UHFFFAOYSA-N azanium;periodate Chemical compound [NH4+].[O-]I(=O)(=O)=O URGYLQKORWLZAQ-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010946 fine silver Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 description 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-N iodic acid Chemical class OI(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-N 0.000 description 1
- 150000002497 iodine compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 1
- 229930182490 saponin Natural products 0.000 description 1
- 150000007949 saponins Chemical class 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
- 229940045105 silver iodide Drugs 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 229910052718 tin Inorganic materials 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
- 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
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
Definitions
- a photographic silver halide light-sensitive element comprising a support having thereon at least one layer containing a silver halide, wherein one colloid containing layer of said element contains: a) a compound of the formula M10 0r M10 wherein M is a hydrogen atom, an alkaline metal atom or ammonium group, and b) at least one of the following: unsubstituted benzenesulfinic acid, substituted benezenesulfinic acid and salts thereof; This element exhibits a marked reduction in the amount of yellow fog which is formed after storage and/0r development.
- the present invention relates to a photographic silver halide light-sensitive element in which the formation of yellow fogs is reduced.
- An exposed photographic silver halide light-sensitive element is usually successively processed in a developing bath, a stopping bath and a fixing bath.
- a thiosulfate a solvent for a silver halide which is contained in the fixing bath, is frequently intermixed in a developer.
- a thiosulfate which is a solvent for a silver halide is sometimes incorporated in the monobath.
- yellow fogs in photographic silver halide light-sensitive elements are caused by fine silver particles or silver sulfide deposited in any water-permeable colloid layer used in forming the photographic silver halide light-sensitive elements, not generally in baryta layers or emulsion layers thereof, or in water-permeable papers.
- the reason for the formation of such yellow fogs is as follows:
- a photographic silver halide light-sensitive element is processed in a developer containing a solvent for a silver halide, such as a thiosulfate, and when a material capable of forming a nucleus for reducing water-soluble silver ions to metallic silver, such as colloidal sulfur, silver or silver sulfide is present in a baryta layer or an emulsion layer thereof is present, water-soluble silver ions are reduced into metallic silver by reducing agents (for example a developing agent) in the developer, and these deposit on the aforesaid nuclei, thus forming the yellow fogs.
- reducing agents for example a developing agent
- the yellow fogs thus formed can be generally divided into two types, according to their method of formation.
- One method is where the formation of yellow fogs is observed when a photographic silver halide light-sensitive element is developed in a developer containing a solvent for silver halide, just after the preparation thereof.
- a second method is where the formation of yellow fogs is not observed when a photographic silver halide light-sensitive element is developed in a developercontaining a solvent for silver halide (just after the preparation thereof), but is observed when a photographic silver halide light-sensitive element is subjected to the same processing after it is stored under various conditions.
- the former is the situation when a material capable of being a nucleus for reducing water-soluble silver ions to metallic silver is already present in a baryta paper as a support for a photographic silver halide light-sensitive element, or else is present in a silver halide light-sensitive emulsion layer, a baryta paper, or a paper for a photographic silver halide lightsensitive element at the preparation thereof.
- the latter case is where a material capable of forming a nucleus for reducing water-soluble silver ions to metallic silver is formed in the emulsion layer, the baryta layer of the support of the photographic element, after it has been stored under various conditions.
- a photographic silver halide-sensitive element which contains at least one colloid layer which contains a compound capable of forming iodate ions will exhibit a marked reduction in the amount of yellow fogs which may be formed therein.
- benzenesulfinic acids and salts thereof may be added.
- Representative compounds capable of forming iodate ions are iodic acid, periodic acid and salts thereof.
- colloidal materials wherein the compound of the present invention may be incorporated include emulsion layers, protective layers and baryta layers.
- an object of this invention is to prevent the formation of yellow fogs in photographic silver halide light-sensitive elements, and in particular to prevent the formation of yellow fogs in photographic silver halide light-sensitive elements when they are stored or allowed to stand for long periods of time under various conditions.
- Another object of this invention is to provide a photographic silver halide light-sensitive element in which the formation of yellow fogs is effectively reduced or prevented.
- the colloid layers include every layer which contains colloidal materials for photographic silver halide light-sensitive elements, such as, emulsion layers, protective layers, and baryta layers.
- colloidal materials for photographic silver halide light-sensitive elements such as, emulsion layers, protective layers, and baryta layers.
- the factors which cause yellow fogs are, as mentioned above, due to the properties specific to the material which is used.
- lower molecular weight materials contained in a colloid layer or a paper base move freely through each layer when each colloid layer of the photographic silver halide light-sensitive element is swollen in a processing bath.
- the aforesaid material (such as an iodine compound, unsubstituted or substituted benzenesulfinic acid, or a salt thereof) may be effectively incorporated in any of the colloid layers and the paper base, and thus may, in effect, be incorporated in any layer in the present invention.
- a compound capable of forming iodate ions is generally a compound as iodic acid, periodic acid or a salt thereof, represented by M10, or MlO wherein M represents a hydrogen atom, an alkali metal or an ammonium group.
- M represents a hydrogen atom, an alkali metal or an ammonium group.
- ammonium iodate, iodic acid, sodium iodate, periodic acid, potassium periodate, ammonium periodate, and the like are examples of such compounds.
- the unsubstituted or substituted benzenesulfinic acids or salts thereof may generally be represented by the general formula:
- M represents a hydrogen atom, an alkali metal or ammonium group
- X represents hydrogen, a halogen atom, an alkyl group having 1-3 carbon atoms, or an amino group.
- Illustrative examples of such compounds are sodium benzenesulfinate, sodium p-toluenesulfinate, sodium pchlorobenzenesulfinate, and sodium p-aminobenzenesulfinate.
- the mechanism of the iodate compound of this invention for preventing the formation of yellow fogs has not yet been clarified, but the following is offered as a nonlimitative possible explanation.
- the yellow fogs form in the silver halide emulsion layer of a photographic silver halide light-sensitive element or at the interface between the silver halide emulsion layer and an adjacent layer thereof.
- the yellow fogs are considered to be formed through a stage where physical development nuclei are formed or present.
- yellowish developed silver as formed utilizing the physical development nuclei as the development nuclei when the photographic silver halide light-sensitive element is developed in a developing bath containing a solvent for a silver halide.
- the physical development nuclei as very fine particles of metallic silver (A,) formed in the silver halide emulsion layer or at the interface between the silver halide emulsion layer and a layer adjacent the silver halide emulsion layer, the nuclei being formed by the reduction of silver ions (Af).
- they may be considered as very fine particles of silver sulfide formed there by the reaction of silver ions (AJ) and a very small amount of a sulfur compound.
- the iodate will suppress the formation of metallic silver by oxidizing materials which will reduce silver ions
- the iodate compound will suppress the formation of silver sulfide by oxidizing the sulfur compound. Therefore, by incorporating the iodate compound in a photographic colloid layer of a photographic silver halide light-sensitive element the formation of the physical development nuclei will be suppressed, and the formation of yellow fogs can be reduced.
- the effect of the iodate compound can be prolonged for an even longer period of time. That is, after storing a photographic silver halide light-sensitive element containing an iodate compound therein for a long period of time, or else after allowing it to stand under conditions of high temperature and high humidity, the photographic light-sensitive element can be subjected to development, fixing, and washing as usual. It will then be observed that the unexposed portions of the photographic silver halide light-sensitive element become yellowish, caused perhaps by the spontaneous decomposition of the iodate compound.
- an iodate compound, M or MIC may be employed alone, or as a mixture of two or more types of such iodate compounds.
- an unsubstituted or benzenesulfinic acid, or a salt thereof may be used with the aforesaid iodate compound.
- the benzenesulfinic acid, or salt thereof may be used along, or as a mixture of two or more types thereof.
- the amount of the iodate compound is preferably about 0.5 g. per kilogram of silver halide emulsion (containing about 40 g. of silver halide).
- the aforesaid additives may be effectively added in any colloid layer of a photographic silver halide light-sensitive element and also they may be added in one colloid layer or two or more colloid layers. Furthermore, the additives may be incorporated in a colloid layer at any stage, but usually it is incorporated in a colloid, such as, a silver halide emulsion, a baryta coating composition, a dispersion for use as a protective layer, etc., at the preparation thereof, together with other additives, such as hardening agents, and wetting agents.
- a photographic silver halide light-sensitive element capable of providing sharp images having substantially no fogs or, at worst, very few fogs, is obtained.
- EXAMPLE 1 A baryta coating composition, containing a hardening agent, a wetting agent, etc., was applied to a paper in such proportions that the amounts of barium sulfate (anhydrous, gelatin, and sodium iodate (anhydrous) were 40 g., 4 g., and 0.05 g., respectively, per 1 square meter of the paper, to provide a baryta paper. Further, a photographic silver halide emulsion for photographic printing paper use was applied to the baryta layer thus formed to provide a photographic printing paper.
- a printing paper was prepared by the same procedure as above using the baryta coating composition containing no sodium iodate.
- the printing papers thus developed were fixed, washed and dried using standard techniques.
- EXAMPLE 2 A silver chlorobromide emulsion containing 50 mole percent silver bromide and 0.5 g. of sodium iodate (anhydrous) per kilogram of the silver halide emulsion (containing 50 g. of silver halide), with a dye sensitize-r, an antifoggant, a hardening agent, a wetting agent, etc., was applied to a baryta-coated paper to prepare a photographic printing paper. When the printing paper thus prepared was processed as in example 1, the formation of yellow fogs was negligible.
- EXAMPLE 3 A silver iodobromide emulsion containing 3 mole percent silver iodide and l g. of sodium iodate (anhydrous) per kilogram of the silver halide emulsion, together with a dye sensitizer, a hardening agent, a wetting agent, etc., was applied to a film base of triacetyl cellulose at a thickness of g./m. to provide a photographic silver halide light-sensitive film was prepared by the same procedure as above while using a silver halide emulsion having the same composition as above, with the exception that no sodium iodate was contained therein.
- EXAMPLE 4 A pure silver halide emulsion, containing 50 g. of silver chloride and 1.5 g. of sodium benzenesulfinate per kilogram of silver halide emulsion, together with a hardening agent, a wetting agent, and the like. was applied to a baryta-coated paper at a thickness of 50-80 g./m. To the emulsion layer thus formed there was applied, as a protective layer, an aqueous gelatin solution having the following composition:
- Gelatin 25 g. Sodium iodate (anhydrous) l g. Saponin (6% solution) 5 ml. Water 1,000 ml.
- a photographic silver halide light-sensitive element useful in preventing yellow fog comprising a support having thereon at least one layer containing a silver halide, and one colloid layer selected from the group consisting of a photographic silver halide emulsion layer and a layer adjacent to a silver halide emulsion layer, wherein said colloid layer of said element contains:
- b a member selected from the group consisting of unsubstituted benzenesulfinic acid, substituted benzenesulfinic acid, and salts thereof.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6092167 | 1967-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3615534A true US3615534A (en) | 1971-10-26 |
Family
ID=13156317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US761858A Expired - Lifetime US3615534A (en) | 1967-09-22 | 1968-09-23 | Photographic silver halide light-sensitive elements useful in preventing yellow fog |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3615534A (enrdf_load_stackoverflow) |
| BE (1) | BE721222A (enrdf_load_stackoverflow) |
| DE (1) | DE1797383C3 (enrdf_load_stackoverflow) |
| FR (1) | FR1586236A (enrdf_load_stackoverflow) |
| GB (1) | GB1227550A (enrdf_load_stackoverflow) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977879A (en) * | 1974-12-20 | 1976-08-31 | E. I. Du Pont De Nemours And Company | Photographic element with contiguous layer containing an oxidizing agent |
| US4547452A (en) * | 1982-09-29 | 1985-10-15 | Fuji Photo Film Co., Ltd. | Color diffusion transfer photographic element with sufinic acid |
| US4770987A (en) * | 1985-12-17 | 1988-09-13 | Fuji Photo Film Co., Ltd. | Silver halide color photographic materials containing an antisain agent and a magenta coupler in lipophilic fine particles |
| US5443947A (en) * | 1993-11-30 | 1995-08-22 | Eastman Kodak Company | Heat stabilized silver chloride photographic emulsions containing thiosulfonate/sulfinate compounds |
| US5536633A (en) * | 1993-11-30 | 1996-07-16 | Eastman Kodak Company | Heat stabilized silver chloride photographic emulsions containing sulfur donors and sulfinate compounds |
| US5601970A (en) * | 1995-01-03 | 1997-02-11 | Eastman Kodak Company | Photographic elements exhibiting improved stability |
-
1968
- 1968-09-20 FR FR1586236D patent/FR1586236A/fr not_active Expired
- 1968-09-20 BE BE721222D patent/BE721222A/xx unknown
- 1968-09-20 GB GB1227550D patent/GB1227550A/en not_active Expired
- 1968-09-23 DE DE1797383A patent/DE1797383C3/de not_active Expired
- 1968-09-23 US US761858A patent/US3615534A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977879A (en) * | 1974-12-20 | 1976-08-31 | E. I. Du Pont De Nemours And Company | Photographic element with contiguous layer containing an oxidizing agent |
| US4547452A (en) * | 1982-09-29 | 1985-10-15 | Fuji Photo Film Co., Ltd. | Color diffusion transfer photographic element with sufinic acid |
| US4770987A (en) * | 1985-12-17 | 1988-09-13 | Fuji Photo Film Co., Ltd. | Silver halide color photographic materials containing an antisain agent and a magenta coupler in lipophilic fine particles |
| US5443947A (en) * | 1993-11-30 | 1995-08-22 | Eastman Kodak Company | Heat stabilized silver chloride photographic emulsions containing thiosulfonate/sulfinate compounds |
| US5536633A (en) * | 1993-11-30 | 1996-07-16 | Eastman Kodak Company | Heat stabilized silver chloride photographic emulsions containing sulfur donors and sulfinate compounds |
| US5601970A (en) * | 1995-01-03 | 1997-02-11 | Eastman Kodak Company | Photographic elements exhibiting improved stability |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1797383C3 (de) | 1975-04-30 |
| DE1797383B2 (de) | 1974-09-12 |
| BE721222A (enrdf_load_stackoverflow) | 1969-03-03 |
| DE1797383A1 (de) | 1971-03-04 |
| GB1227550A (enrdf_load_stackoverflow) | 1971-04-07 |
| FR1586236A (enrdf_load_stackoverflow) | 1970-02-13 |
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