US3655387A - Antistatic photographic compositions - Google Patents
Antistatic photographic compositions Download PDFInfo
- Publication number
- US3655387A US3655387A US72534A US3655387DA US3655387A US 3655387 A US3655387 A US 3655387A US 72534 A US72534 A US 72534A US 3655387D A US3655387D A US 3655387DA US 3655387 A US3655387 A US 3655387A
- Authority
- US
- United States
- Prior art keywords
- glycerophosphate
- photographic
- grams
- element according
- silver halide
- 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
- 239000000203 mixture Substances 0.000 title abstract description 13
- -1 silver halide Chemical class 0.000 claims abstract description 28
- AWUCVROLDVIAJX-UHFFFAOYSA-N alpha-glycerophosphate Natural products OCC(O)COP(O)(O)=O AWUCVROLDVIAJX-UHFFFAOYSA-N 0.000 claims abstract description 26
- AWUCVROLDVIAJX-GSVOUGTGSA-N sn-glycerol 3-phosphate Chemical compound OC[C@@H](O)COP(O)(O)=O AWUCVROLDVIAJX-GSVOUGTGSA-N 0.000 claims abstract description 24
- 229910052709 silver Inorganic materials 0.000 claims abstract description 23
- 239000004332 silver Substances 0.000 claims abstract description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 229960002901 sodium glycerophosphate Drugs 0.000 claims description 17
- REULQIKBNNDNDX-UHFFFAOYSA-M sodium;2,3-dihydroxypropyl hydrogen phosphate Chemical compound [Na+].OCC(O)COP(O)([O-])=O REULQIKBNNDNDX-UHFFFAOYSA-M 0.000 claims description 17
- 239000000839 emulsion Substances 0.000 claims description 15
- 108010010803 Gelatin Proteins 0.000 claims description 14
- 229920000159 gelatin Polymers 0.000 claims description 14
- 239000008273 gelatin Substances 0.000 claims description 14
- 235000019322 gelatine Nutrition 0.000 claims description 14
- 235000011852 gelatine desserts Nutrition 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 10
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 239000001736 Calcium glycerylphosphate Substances 0.000 claims description 3
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 3
- UHHRFSOMMCWGSO-UHFFFAOYSA-L calcium glycerophosphate Chemical compound [Ca+2].OCC(CO)OP([O-])([O-])=O UHHRFSOMMCWGSO-UHFFFAOYSA-L 0.000 claims description 3
- 229940095618 calcium glycerophosphate Drugs 0.000 claims description 3
- 235000019299 calcium glycerylphosphate Nutrition 0.000 claims description 3
- JZJVSRKZXGLAMI-UHFFFAOYSA-L dilithium;2,3-dihydroxypropyl phosphate Chemical compound [Li+].[Li+].OCC(O)COP([O-])([O-])=O JZJVSRKZXGLAMI-UHFFFAOYSA-L 0.000 claims description 3
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 3
- 239000006012 monoammonium phosphate Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- CHFUHGDBYUITQJ-UHFFFAOYSA-L dipotassium;2,3-dihydroxypropyl phosphate Chemical compound [K+].[K+].OCC(O)COP([O-])([O-])=O CHFUHGDBYUITQJ-UHFFFAOYSA-L 0.000 claims description 2
- 235000000491 potassium glycerophosphate Nutrition 0.000 claims description 2
- 239000011600 potassium glycerophosphate Substances 0.000 claims description 2
- 150000002315 glycerophosphates Chemical class 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 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 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003176 water-insoluble polymer Polymers 0.000 description 2
- PSBDWGZCVUAZQS-UHFFFAOYSA-N (dimethylsulfonio)acetate Chemical group C[S+](C)CC([O-])=O PSBDWGZCVUAZQS-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- QVLTXCYWHPZMCA-UHFFFAOYSA-N po4-po4 Chemical compound OP(O)(O)=O.OP(O)(O)=O QVLTXCYWHPZMCA-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000000080 wetting agent Substances 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
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/85—Photosensitive materials characterised by the base or auxiliary layers characterised by antistatic additives or coatings
- G03C1/856—Phosphorus compounds
Definitions
- ABSTRACT Improved photographic compositions are disclosed comprising a support, a photographic silver halide layer and at least one layer containing a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid.
- This invention relates to antistatic compounds which are useful in photographic compositions.
- this invention relates to the use of salts of glycerophosphoric acid as antistatic agents.
- Photographic elements containing the antistatic compounds of out invention provide improved antistatic properties without substantially affecting sensitometric properties, silver halide grain properties or hardness.
- the glycerophosphates of the invention are simple, ionic compounds which are readily available and which can be used alone or in combination with other compounds such as wetting agents, soaps, hygroscopic agents, dispersing agents, etc.
- a photographic composition comprises a support, a photographic silver halide layer and at least one layer comprising a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid and is preferably an ammonium or alkali metal salt of glycerophosphoric acid.
- said photographic composition comprises a support and a photographic silver halide emulsion layer comprising a static-inhibiting amount of sodium glycerophosphate.
- said photographic composition comprises a support, a photographic silver halide layer and a gelatin backing layer comprising sodium glycerophosphate.
- said photographic composition comprises a support and a photographic silver halide emulsion layer comprising sodium glycerophosphate and monoammonium glycerophosphate.
- Suitable antistatic compounds include all those salts of glycerophosphoric acid which impart conductivity to a photographic material and thus substantially dissipate electrical charges before their accumulation leads to local discharges leading to black streaks, lines or irregular fogged patterns in the emulsion layer.
- Preferred antistatic agents are glycerophosphates of alkali metals used alone or in combination with other glycerophosphatessuch as monoammonium glycerophosphate.
- Examples of useful antistatic compounds include glycerophosphates of metal ions such as, for example, potassium glycerophosphate, sodium glycerophosphate, calcium glycerophosphate, lithium glycerophosphate, ammonium glycerophosphate and the like.
- the compounds of the invention used in static-inhibiting quantities lower the surface resistivity of the photographic element under various conditions of relative humidity without modifying the silver halide grain properties or without changing physical properties such as hardness of gelatin-containing layers.
- the compounds of the invention can be dissolved in water and added to photographic silver halide emulsions or binder vehicles such as, for example, hydrophilic colloids, latex polymers, water-insoluble polymers and the like.
- binder vehicles such as, for example, hydrophilic colloids, latex polymers, water-insoluble polymers and the like.
- Typical preferred binder vehicles include proteins such as gelatin, hydrophilic polymers and dispersed vinyl compounds such as those in the latex form and combinations of the same.
- Suitable synthetic polymers include those described, for example, in US. Pat. No. 3,142,568 of Nottorf, issued July 28, 1964; No. 3,193,386 of White, issued July 6, 1965; No. 3,062,674 of Houck, Smith and Yudelson, issued Nov. 6, 1962; No. 3,220,844 of Houck, Smith and Yudelson, issued Nov. 30, 1965; No. 3,287,289 of Ream and Fowler, issued Nov. 22,
- the compounds of this invention can be incorporated in at least one layer of a photographic element such as, for example, anti-abrasive layers, backing layers, photographic silver halide emulsion layers, combinations of layers, etc., though photographic silver halide emulsion layers are preferred.
- a photographic element such as, for example, anti-abrasive layers, backing layers, photographic silver halide emulsion layers, combinations of layers, etc., though photographic silver halide emulsion layers are preferred.
- Optimum static-inhibiting levels of antistatic compounds are determined experimentally by measuring the electrical surface resistivity of a photographic compodition containing a sample compound. In general, increased levels of antistatic compounds produce lower surface resistivities resulting in improved static-inhibiting properties.
- the glycerophosphates generally provide improved antistatic properties when incorporated in the binder vehicle at a concentration of about 5 grams to about 60 grams per 100 grams of vehicle; preferably they are added at a concentration of 15 grams to about 40 grams per 100 grams of binder vehicle.
- EXAMPLE 1 Sodium glycerophosphate in a backing layer Sodium glycerophosphate is dissolved in water and the pH is adjusted to that of the final pH of the backing layer without the antistatic compound. The sodium glycerophosphate solution is then added to an 1 1 percent gelatin solution which is coated on the back of a film support at a rate of coverage of 240 mg./square decimeter.
- EXAMPLE 2 Sodium glycerophosphate in a photographic silver halide emulsion layer Sodium glycerophosphate is added to a silver halide gelatin emulsion at a rate of 80 grams per 2 kilograms of 7 percent gelatin. Emulsion samples are coated on a film support at a rate of 54 mgJsquare decimeter. Surface resistivities of test coatings are set forth in Table 2 below.
- Sensitometric data shows that substantially no change occurs in photographic speed or in minimum density on both fresh and incubated samples. Changes in minimum densities of incubated samples are further minimized in coatings containing both sodium glycerophosphate and monoammonium phosphate.
- a photographic element according to claim 1 wherein said silver halide layer is a photographic silver halide emulsion layer comprising sodium glycerophosphatc and monoammoni- TABLE? Grams of addenda in Melting 2 kg. oi emulsion Surface resistivity point Change in h 10 n/square after 7 minimum density N a Mono days of glyceroammonium 30% 50% storage, Change Incuphosphate phosphate RH RH C. in speed Fresh button 1 (U) control.
- a photographic element according to claim 1 wherein glycerophosphate are used as antistatic compounds in the said salt of glycerophosphoric acid is potassium photographic emulsion.
- the invention has been described in considerable glycerophosphate acid or lithium glycerophosphate. detail with particular reference to certain preferred embodi- 6.
- a photographic element according to claim 1 wherein ments thereof, variations and modifications can be effected aid alt of glycerophosphoric acid is sodium within the spirit and scope of the invention. l e h h te,
- a photographic element comprising a support, a photographic silver halide layer and at least one layer comprising a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid.
- said silver halide layer is a photographic silver halide emulsion layer comprising a static-inhibiting amount of an alkali metal glycerophosphate.
- a photographic element according to claim 1 wherein said compound is sodium glycerophosphate incorporated in a gelatin backing layer.
- a photographic element according to claim 1 comprising from about 5 grams to about 60 grams of said salt of glycerophosphoric acid per grams of binder vehicle.
- a photographic element according to claim 1 comprising from about 15 grams to about 40 grams of said salt of glycerophosphoric acid per 100 grams of binder vehicle in said layer.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Improved photographic compositions are disclosed comprising a support, a photographic silver halide layer and at least one layer containing a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid.
Description
United States Patent Collet et al.
[15} 3,655,387 [451 Apr. 11, 1972 [54] ANTISTATIC PHOTOGRAPHIC COMPOSITIONS [72] Inventors: Pierre Daniel Collet; Guy Clero, both of Vincenncs, France [73] Assignee: Eastman Kodak Company, Rochester,
[22] Filed: Sept. 15, 1970 [21] Appl. N0.: 72,534
3,428,456 2/1969 Grabhofer et a1 ..96/87 A 3,547,650 12/1970 Pilato ..96/114.5 3,258,338 6/1966 Claeys et a1 ..96/114.4 3,364,044 1/1968 Grabhofer et a1 ..96/1 14.4
Primary Examiner-Ronald H. Smith Attorney-William H. J. Kline, Bernard D. Wiese and Gerald E. Battist [5 7] ABSTRACT Improved photographic compositions are disclosed comprising a support, a photographic silver halide layer and at least one layer containing a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid.
9 Claims, No Drawings ANTISTATIC PHOTOGRAPHIC COMPOSITIONS This invention relates to antistatic compounds which are useful in photographic compositions. In one aspect, this invention relates to the use of salts of glycerophosphoric acid as antistatic agents.
It is known that certain anionic phosphate compounds having lipophilic and hydrophilic groups display antistatic properties when used in combination with cationic surfactants. It is also known that polyesters of phosphoric acid used in combination with glycerol provide antistatic properties to synthetic materials. These antistatic substances which are commonly used in textile materials as well as photographic compositions frequently cause problems when used in photographic compositions leading to undesirable changes in hardness and sensitometric properties. Many of these antistatic substances modify the silver halide grain properties.
Photographic elements containing the antistatic compounds of out invention provide improved antistatic properties without substantially affecting sensitometric properties, silver halide grain properties or hardness. Moreover, the glycerophosphates of the invention are simple, ionic compounds which are readily available and which can be used alone or in combination with other compounds such as wetting agents, soaps, hygroscopic agents, dispersing agents, etc.
In one embodiment, a photographic composition comprises a support, a photographic silver halide layer and at least one layer comprising a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid and is preferably an ammonium or alkali metal salt of glycerophosphoric acid.
In a preferred embodiment, said photographic composition comprises a support and a photographic silver halide emulsion layer comprising a static-inhibiting amount of sodium glycerophosphate.
In another embodiment, said photographic composition comprises a support, a photographic silver halide layer and a gelatin backing layer comprising sodium glycerophosphate.
In still another embodiment, said photographic composition comprises a support and a photographic silver halide emulsion layer comprising sodium glycerophosphate and monoammonium glycerophosphate.
Suitable antistatic compounds include all those salts of glycerophosphoric acid which impart conductivity to a photographic material and thus substantially dissipate electrical charges before their accumulation leads to local discharges leading to black streaks, lines or irregular fogged patterns in the emulsion layer. Preferred antistatic agents are glycerophosphates of alkali metals used alone or in combination with other glycerophosphatessuch as monoammonium glycerophosphate. Examples of useful antistatic compounds include glycerophosphates of metal ions such as, for example, potassium glycerophosphate, sodium glycerophosphate, calcium glycerophosphate, lithium glycerophosphate, ammonium glycerophosphate and the like.
The compounds of the invention used in static-inhibiting quantities lower the surface resistivity of the photographic element under various conditions of relative humidity without modifying the silver halide grain properties or without changing physical properties such as hardness of gelatin-containing layers.
The compounds of the invention can be dissolved in water and added to photographic silver halide emulsions or binder vehicles such as, for example, hydrophilic colloids, latex polymers, water-insoluble polymers and the like. Typical preferred binder vehicles include proteins such as gelatin, hydrophilic polymers and dispersed vinyl compounds such as those in the latex form and combinations of the same. Suitable synthetic polymers include those described, for example, in US. Pat. No. 3,142,568 of Nottorf, issued July 28, 1964; No. 3,193,386 of White, issued July 6, 1965; No. 3,062,674 of Houck, Smith and Yudelson, issued Nov. 6, 1962; No. 3,220,844 of Houck, Smith and Yudelson, issued Nov. 30, 1965; No. 3,287,289 of Ream and Fowler, issued Nov. 22,
1966; and No. 3,411,911 of Dykstra, issued, Nov. 19, 1968; particularly effective are those water-insoluble polymers of alkyl acrylates and methacrylates, acrylic acid, sulfoalkyl acrylates or methacrylates, those which have cross-linking sites which facilitate hardening or curing, and those having recurring sulfobetaine units as described in Canadian Pat. No. 774,054. The compounds of this invention can be incorporated in at least one layer of a photographic element such as, for example, anti-abrasive layers, backing layers, photographic silver halide emulsion layers, combinations of layers, etc., though photographic silver halide emulsion layers are preferred.
Optimum static-inhibiting levels of antistatic compounds are determined experimentally by measuring the electrical surface resistivity of a photographic compodition containing a sample compound. In general, increased levels of antistatic compounds produce lower surface resistivities resulting in improved static-inhibiting properties. The glycerophosphates generally provide improved antistatic properties when incorporated in the binder vehicle at a concentration of about 5 grams to about 60 grams per 100 grams of vehicle; preferably they are added at a concentration of 15 grams to about 40 grams per 100 grams of binder vehicle.
This invention is further illustrated by the following examples.
EXAMPLE 1 Sodium glycerophosphate in a backing layer Sodium glycerophosphate is dissolved in water and the pH is adjusted to that of the final pH of the backing layer without the antistatic compound. The sodium glycerophosphate solution is then added to an 1 1 percent gelatin solution which is coated on the back of a film support at a rate of coverage of 240 mg./square decimeter.
In Table 1 below, the level of glycerophosphate addition varies according to the resistivity desired. Results indicate that film surface resistivity measured at 30 percent and 50 percent RH decreases as the level of glycerophosphate addition increases from 1.5 to 4.0 percent by weight of gelatin solution. The addition of another phosphate such as monoammonium phosphate in combination with sodium glycerophosphate further lowers the resistivity of the photographic composition.
No appreciable change is observed in gelatin hardening in tests of samples containing antistatic agents as evaluated by measuring the melting point of gelatin in water on samples which have been stored for 7 days at room temperature.
TABLE 1 Grams of addenda in 1 kg. of gelatin Surface resistivity Melt ng solution 10 Q/square point after 7 Na Monoarndays of glyceromonium 30% 50% storage. Sample No. phosphate phosphate RH RH C.
l (0) control.
EXAMPLE 2 Sodium glycerophosphate in a photographic silver halide emulsion layer Sodium glycerophosphate is added to a silver halide gelatin emulsion at a rate of 80 grams per 2 kilograms of 7 percent gelatin. Emulsion samples are coated on a film support at a rate of 54 mgJsquare decimeter. Surface resistivities of test coatings are set forth in Table 2 below.
Sensitometric data shows that substantially no change occurs in photographic speed or in minimum density on both fresh and incubated samples. Changes in minimum densities of incubated samples are further minimized in coatings containing both sodium glycerophosphate and monoammonium phosphate.
4. A photographic element according to claim 1 wherein said silver halide layer is a photographic silver halide emulsion layer comprising sodium glycerophosphatc and monoammoni- TABLE? Grams of addenda in Melting 2 kg. oi emulsion Surface resistivity point Change in h 10 n/square after 7 minimum density N a Mono days of glyceroammonium 30% 50% storage, Change Incuphosphate phosphate RH RH C. in speed Fresh button 1 (U) control.
Similar results are obtained when potassium um phosphate. glycerophosphate, calcium glycerophosphate and lithium 5. A photographic element according to claim 1 wherein glycerophosphate are used as antistatic compounds in the said salt of glycerophosphoric acid is potassium photographic emulsion. glycerophosphate, sodium glycerophosphate, calcium Although the invention has been described in considerable glycerophosphate acid or lithium glycerophosphate. detail with particular reference to certain preferred embodi- 6. A photographic element according to claim 1 wherein ments thereof, variations and modifications can be effected aid alt of glycerophosphoric acid is sodium within the spirit and scope of the invention. l e h h te,
We claim:
1. A photographic element comprising a support, a photographic silver halide layer and at least one layer comprising a static-inhibiting amount of a compound which is a salt of glycerophosphoric acid.
2. A photographic element according to claim 1 wherein said silver halide layer is a photographic silver halide emulsion layer comprising a static-inhibiting amount of an alkali metal glycerophosphate.
3. A photographic element according to claim 1 wherein said compound is sodium glycerophosphate incorporated in a gelatin backing layer.
7. A photographic element according to claim 1 comprising from about 5 grams to about 60 grams of said salt of glycerophosphoric acid per grams of binder vehicle.
8. A photographic element according to claim 1 comprising from about 15 grams to about 40 grams of said salt of glycerophosphoric acid per 100 grams of binder vehicle in said layer.
9. A photographic element according to claim 1 wherein said binder vehicle is gelatin.
Claims (8)
- 2. A photographic element according to claim 1 wherein said silver halide layer is a photographic silver halide emulsion layer comprising a static-inhibiting amount of an alkali metal glycerophosphate.
- 3. A photographic element according to claim 1 wherein said compound is sodium glycerophosphate incorporated in a gelatin backing layer.
- 4. A photographic element according to claim 1 wherein said silver halide layer is a photographic silver halide emulsion layer comprising sodium glycerophosphate and monoammonium phosphate.
- 5. A photographic element according to claim 1 wherein said salt of glycerophosphoric acid is potassium glycerophosphate, sodium glycerophosphate, calcium glycerophosphate acid or lithium glycerophosphate.
- 6. A photographic element according to claim 1 wherein said salt of glycerophosphoric acid is sodium glycerophosphate.
- 7. A photographic element according to claim 1 comprising from about 5 grams to about 60 grams of said salt of glycerophosphoric acid per 100 grams of binder vehicle.
- 8. A photographic element according to claim 1 comprising from about 15 grams to about 40 grams of said salt of glycerophosphoric acid per 100 grams of binder vehicle in said layer.
- 9. A photographic element according to claim 1 wherein said binder vehicle is gelatin.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7253470A | 1970-09-15 | 1970-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3655387A true US3655387A (en) | 1972-04-11 |
Family
ID=22108214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US72534A Expired - Lifetime US3655387A (en) | 1970-09-15 | 1970-09-15 | Antistatic photographic compositions |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3655387A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329422A (en) * | 1978-02-06 | 1982-05-11 | Napp Systems (Usa), Inc. | Post-exposure treating solution for photosensitive graphic arts articles |
| US5674671A (en) * | 1994-07-18 | 1997-10-07 | Minnesota Mining And Manufacturing Company | Light senitive material having improved antistatic behavior |
| EP2385425A1 (en) | 2010-05-07 | 2011-11-09 | Fujifilm Corporation | Silver halide photographic light-sensitive material for movie |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258338A (en) * | 1960-12-29 | 1966-06-28 | Claeys Daniel Alois | Photographic material containing softening agent |
| US3264108A (en) * | 1963-03-19 | 1966-08-02 | Gen Aniline & Film Corp | Antistatic photographic film |
| US3364044A (en) * | 1962-08-20 | 1968-01-16 | Agfa Ag | Gelatine compositions containing pentaerythritol esters of phosphoric acids |
| US3428456A (en) * | 1964-06-19 | 1969-02-18 | Agfa Ag | Antistatic photographic materials |
| US3547650A (en) * | 1967-11-13 | 1970-12-15 | Du Pont | Silver halide emulsion comprising a gelatin - polyvinyl compound dispersion |
-
1970
- 1970-09-15 US US72534A patent/US3655387A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3258338A (en) * | 1960-12-29 | 1966-06-28 | Claeys Daniel Alois | Photographic material containing softening agent |
| US3364044A (en) * | 1962-08-20 | 1968-01-16 | Agfa Ag | Gelatine compositions containing pentaerythritol esters of phosphoric acids |
| US3264108A (en) * | 1963-03-19 | 1966-08-02 | Gen Aniline & Film Corp | Antistatic photographic film |
| US3428456A (en) * | 1964-06-19 | 1969-02-18 | Agfa Ag | Antistatic photographic materials |
| US3547650A (en) * | 1967-11-13 | 1970-12-15 | Du Pont | Silver halide emulsion comprising a gelatin - polyvinyl compound dispersion |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4329422A (en) * | 1978-02-06 | 1982-05-11 | Napp Systems (Usa), Inc. | Post-exposure treating solution for photosensitive graphic arts articles |
| US5674671A (en) * | 1994-07-18 | 1997-10-07 | Minnesota Mining And Manufacturing Company | Light senitive material having improved antistatic behavior |
| EP2385425A1 (en) | 2010-05-07 | 2011-11-09 | Fujifilm Corporation | Silver halide photographic light-sensitive material for movie |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4582781A (en) | Antistatic compositions comprising polymerized oxyalkylene monomers and an inorganic tetrafluoroborate, perfluoroalkyl carboxylate, hexafluorophosphate or perfluoroalkylsulfonate salt | |
| JPH0685067B2 (en) | Antistatic composition for photography | |
| US4327174A (en) | Method of preparing a carrier material for photography | |
| DE69316005T2 (en) | Photographic light-sensitive material with preserved antistatic properties | |
| US4610955A (en) | Antistatic compositions comprising polymerized oxyalkylene monomers and an inorganic tetrafluoroborate, perfluoroalkyl carboxylate, hexafluorophosphate or perfluoroalkylsulfonate salt | |
| EP0757286B1 (en) | New element for industrial radiography | |
| US3900323A (en) | Photographic element comprising an opaque backcoat | |
| DE2734336C2 (en) | Lith type silver halide photographic light-sensitive material | |
| US3655387A (en) | Antistatic photographic compositions | |
| US5079136A (en) | Plastic film with antistatic layer and silver halide photographic light-sensitive material using the same | |
| DE69018679T2 (en) | Silver halide photographic light-sensitive material with inhibited dusting. | |
| US4585733A (en) | Method of preparing silver halide photographic emulsion | |
| US3876430A (en) | Antistatic photographic material | |
| US3655390A (en) | Direct positive emulsions containing amine boranes and bismuth salts | |
| US3901709A (en) | Lith-type silver halide photographic material containing a polyalkylene oxide and a heterocyclic mercaptan | |
| US4145221A (en) | Synthetic polymer latices in photographic silver halide emulsions containing multivalent metal salts | |
| US3264108A (en) | Antistatic photographic film | |
| US3514289A (en) | Photographic materials containing metal salts | |
| US3123492A (en) | Maffet | |
| DE2127139C2 (en) | Process for preparing a silver halide emulsion | |
| US3300312A (en) | Photographic material | |
| US3105762A (en) | Photographic overcoating | |
| US3392023A (en) | Gelatin-silver halide emulsion containing a salt of tris (beta-sulfatoethyl)-sulfonium inner salt | |
| US3907573A (en) | Silver halide photographic emulsions with improved physical characteristics | |
| JPS584136A (en) | Photographic silver halide element containing antipollution agent or antipollution agent precursor |