GB618061A - Improvements in sensitive photographic materials - Google Patents
Improvements in sensitive photographic materialsInfo
- Publication number
- GB618061A GB618061A GB13667/46A GB1366746A GB618061A GB 618061 A GB618061 A GB 618061A GB 13667/46 A GB13667/46 A GB 13667/46A GB 1366746 A GB1366746 A GB 1366746A GB 618061 A GB618061 A GB 618061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- added
- ammonium
- emulsion
- sodium
- chloroplatinite
- 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
Links
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
- G03C1/08—Sensitivity-increasing substances
- G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
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)
Abstract
618,061. Photographic emulsions. KODAK, Ltd., DAVEY, E. P., and BERRIMAN, R. W. (Eastman Kodak Co., Trivelli, A. P. H., and Smith, W. F., in part). May 6, 1946, Nos. 13667/46 and 14913/47 (divided out of 602,158). [Class 98 (ii)] A sensitive silver halide developing-out emulsion free from iron salts is stabilized by the incorporation of a complex halide of platinum. The halide may have the formula R2PtX4 or R2PtX6, wherein R is H, NH4, or an alkali metal such as Na or K and X is a halogen atom (e.g. Cl or Br). The compounds sometimes increase the speed, and in this case may be used in very small quantities. Details of speed, gamma and fog values for specified additions and conditions with a given developer are given. The stabilized emulsions may be developed with developers containing hydroquinone, p-aminophenol or its derivatives, pyrogallol, p-phenylenediamine or its derivatives, or phenylhydroxylamine. The compounds used may be ammonium, sodium and potassium chloroplatinate, chloroplatinite and bromoplatinate, and may be added before or during precipitation of the silver halides, before or during the first or second digestions of the emulsion, or just before coating and before or after the addition of sensitizing dyes. The compounds may be added in solution in water or methyl or ethyl alcohol. One or more sulphur sensitizers (e.g. thiourea, allylisothiocyanate, thiosinamine or sodium, potassium, ammonium, cadmium or calcium thiocyanates), including one or more thiocyanates with a sulphur sensitizer other than a thiocyanate, may be added, advantageously in solution in water or methyl or ethyl alcohol, and during precipitation of the silver halides or the first or second digestions. Both the metal compound and the sulphur sensitizer are preferably present during the second digestion, and the pH of the emulsion is preferably adjusted to between 5 and 7. In example (1) a comparison is drawn between the speed, gamma and fog figures for a gelatino-silver bromiodide emulsion to which has been added (a) sodium thiocyanate before the first digestion (ripening); (b) as (a) to which also has been added ammonium chloroplatinite at the beginning of the precipitation of the silver halides; (c) as (a) with the addition after the precipitation of the silver halides of ammonium chloroplatinite and ascorbic acid; and (d) as (a) with the addition after the first digestion of ammonium chloroplatinite and ascorbic acid. In example (2), a similar comparison is made, with six portions of emulsion, each containing sodium thiocyanate and sodium thiosulphate and each alternate portion containing a thiocarbocyanine sensitizing dye, the first two portions containing no addition of complex halide, the second two containing ammonium chloroplatinate, and the third ammonium chloroplatinite. The emulsions may be sensitized with any of the usual dyes, e.g. erythrosin, Congo Red, monometine-, trimethine-, pentamethine- or heptamethine-cyanines, merocyanines, hemicyanines or hemioxonols, and super-sensitizing mixtures may be used. Hardening agents, setting agents or stabilizing agents may also be added. Specifications 20022/13, [Class 98 (ii)], 450,958, 479,970, 515,145 and 517,769 are referred to.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61370045A | 1945-08-30 | 1945-08-30 | |
US68723946A | 1946-07-30 | 1946-07-30 | |
US765818A US2566245A (en) | 1945-08-30 | 1947-08-02 | Complex compounds of the platinum group as photographic fog inhibitors |
US792842A US2566263A (en) | 1945-08-30 | 1947-12-19 | Stabilizing photographic emulsions with chloropalladites and chloroplatinites |
Publications (1)
Publication Number | Publication Date |
---|---|
GB618061A true GB618061A (en) | 1949-02-16 |
Family
ID=27505115
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13667/46A Expired GB618061A (en) | 1945-08-30 | 1946-05-06 | Improvements in sensitive photographic materials |
GB16676/47A Expired GB602160A (en) | 1945-08-30 | 1946-06-14 | Improvements in sensitive photographic materials |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16676/47A Expired GB602160A (en) | 1945-08-30 | 1946-06-14 | Improvements in sensitive photographic materials |
Country Status (6)
Country | Link |
---|---|
US (2) | US2566245A (en) |
BE (3) | BE476364A (en) |
CH (5) | CH285167A (en) |
FR (3) | FR943206A (en) |
GB (2) | GB618061A (en) |
NL (5) | NL69268C (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0106306A2 (en) | 1982-10-14 | 1984-04-25 | Fuji Photo Film Co., Ltd. | Silver halide color photographic materials |
EP0115351A2 (en) | 1983-01-28 | 1984-08-08 | Fuji Photo Film Co., Ltd. | Silver halide light-sensitive material |
EP0147854A2 (en) | 1983-12-29 | 1985-07-10 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive materials |
EP0200206A2 (en) | 1985-04-30 | 1986-11-05 | Konica Corporation | Silver halide photographic light-sensitive material |
EP0201027A2 (en) | 1985-04-30 | 1986-11-12 | Konica Corporation | Silver halide photographic light-sensitive material |
EP0202784A2 (en) | 1985-04-23 | 1986-11-26 | Konica Corporation | Silver halide photographic light-sensitive material |
EP0209118A2 (en) | 1985-07-17 | 1987-01-21 | Konica Corporation | Silver halide photographic material |
EP0239363A2 (en) | 1986-03-25 | 1987-09-30 | Konica Corporation | Light-sensitive silver halide photographic material feasible for high speed processing |
EP0476327A1 (en) | 1990-08-20 | 1992-03-25 | Fuji Photo Film Co., Ltd. | Data-retainable photographic film product and process for producing color print |
EP0580041A2 (en) | 1992-07-10 | 1994-01-26 | Fuji Photo Film Co., Ltd. | Method of processing silver halide photographic material and composition for processing |
EP0589460A1 (en) | 1992-09-24 | 1994-03-30 | Fuji Photo Film Co., Ltd. | Method for processing a black & white silver halide light-sensitive material |
EP1700710A1 (en) | 2005-03-08 | 2006-09-13 | Konica Minolta Medical & Graphic, Inc. | Printing method, sheet material and mounting method of printing plate |
EP1750173A1 (en) | 2005-08-04 | 2007-02-07 | Fuji Photo Film Co., Ltd. | Silver halide photosensitive material and packaged body containing the same |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3023102A (en) * | 1957-09-24 | 1962-02-27 | Gen Aniline & Film Corp | Direct positive photographic emulsion |
US3508925A (en) * | 1967-09-08 | 1970-04-28 | Eastman Kodak Co | Method for preparing gelatino emulsions containing latexes and polyvalent salts and products obtained thereby |
JPS4914265B1 (en) * | 1970-12-30 | 1974-04-06 | ||
FR2296204A1 (en) * | 1974-12-27 | 1976-07-23 | Kodak Pathe | Chemical sensitization of X-ray film - by incorporating iridium - or rhodium salt and a salt of a purine base in the silver halide emulsion |
US4102312A (en) * | 1975-10-30 | 1978-07-25 | Toyota Jidosha Kogyo Kabushiki Kaisha | Thermally developable light-sensitive materials |
US4247617A (en) * | 1979-05-11 | 1981-01-27 | Polaroid Corporation | Silver diffusion transfer film unit transparency |
JPS58176634A (en) * | 1982-04-09 | 1983-10-17 | Konishiroku Photo Ind Co Ltd | Photosensitive silver halide material |
JPS59188641A (en) | 1983-04-11 | 1984-10-26 | Fuji Photo Film Co Ltd | Silver halide photographic emulsion |
GB8610382D0 (en) * | 1986-04-28 | 1986-06-04 | Minnesota Mining & Mfg | Silver halide photographic materials |
DE3712426A1 (en) * | 1987-04-11 | 1988-10-27 | Agfa Gevaert Ag | COLOR PHOTOGRAPHIC RECORDING MATERIAL |
US4937180A (en) * | 1988-04-08 | 1990-06-26 | Eastman Kodak Company | Photographic emulsions containing internally modified silver halide grains |
US4945035A (en) * | 1988-04-08 | 1990-07-31 | Eastman Kodak Company | Photographic emulsions containing internally modified silver halide grains |
US4933272A (en) * | 1988-04-08 | 1990-06-12 | Eastman Kodak Company | Photographic emulsions containing internally modified silver halide grains |
US4892808A (en) * | 1988-06-20 | 1990-01-09 | Eastman Kodak Company | Photographic material protected against hydrogen cyanide gas |
US4902611A (en) * | 1989-01-06 | 1990-02-20 | Leubner Ingo H | Preparation of silver halide emulsions containing iridium |
DE69103774T2 (en) * | 1991-10-30 | 1995-04-27 | Eastman Kodak Co | Rhodium recovery. |
IT1256100B (en) * | 1992-11-12 | 1995-11-28 | Minnesota Mining & Mfg | PHOTOGRAPHIC ASSEMBLY INCLUDING A PHOTOGRAPHIC ELEMENT FOR THE SILVER HALIDES SEALED IN A CLOSED CONTAINER |
JP3616130B2 (en) * | 1993-06-04 | 2005-02-02 | イーストマン コダック カンパニー | Infrared-sensitive photothermographic silver halide element and image-forming medium exposure method |
US5492805A (en) * | 1994-06-30 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Blocked leuco dyes for photothermographic elements |
US5492804A (en) * | 1994-06-30 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Chromogenic leuco redox-dye-releasing compounds for photothermographic elements |
US5928857A (en) * | 1994-11-16 | 1999-07-27 | Minnesota Mining And Manufacturing Company | Photothermographic element with improved adherence between layers |
US5614360A (en) * | 1994-12-16 | 1997-03-25 | Eastman Kodak Company | Photographic element and coating composition |
US5492803A (en) * | 1995-01-06 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Hydrazide redox-dye-releasing compounds for photothermographic elements |
US5582957A (en) * | 1995-03-28 | 1996-12-10 | Eastman Kodak Company | Resuspension optimization for photographic nanosuspensions |
US5650265A (en) * | 1995-12-22 | 1997-07-22 | Eastman Kodak Company | Silver halide light-sensitive element |
US5811226A (en) * | 1996-03-14 | 1998-09-22 | Eastman Kodak Company | Method of processing a silver halide photographic element which reduces fog |
US5891615A (en) * | 1997-04-08 | 1999-04-06 | Imation Corp. | Chemical sensitization of photothermographic silver halide emulsions |
US5939249A (en) * | 1997-06-24 | 1999-08-17 | Imation Corp. | Photothermographic element with iridium and copper doped silver halide grains |
US6284450B1 (en) | 1998-03-25 | 2001-09-04 | Agfa-Gevaert | Photosensitive image-forming element containing silver halide crystals internally modified with a metal-halogen-fluorine-complex |
EP0945755B1 (en) * | 1998-03-25 | 2002-06-05 | Agfa-Gevaert | A photosensitive image-forming element containing silver halide cristals internally modified with a metal-halogen-fluorine complex |
US7163785B2 (en) * | 2002-11-20 | 2007-01-16 | Konica Minolta Photo Imaging, Inc. | Silver halide photosensitive material and image forming method therefor |
US7524621B2 (en) | 2007-09-21 | 2009-04-28 | Carestream Health, Inc. | Method of preparing silver carboxylate soaps |
US7622247B2 (en) | 2008-01-14 | 2009-11-24 | Carestream Health, Inc. | Protective overcoats for thermally developable materials |
WO2012035314A1 (en) | 2010-09-17 | 2012-03-22 | Fujifilm Manufacturing Europe Bv | Photographic paper |
US9335623B2 (en) | 2014-03-24 | 2016-05-10 | Carestream Health, Inc. | Thermally developable imaging materials |
US9523915B2 (en) | 2014-11-04 | 2016-12-20 | Carestream Health, Inc. | Image forming materials, preparations, and compositions |
US9746770B2 (en) | 2015-06-02 | 2017-08-29 | Carestream Health, Inc. | Thermally developable imaging materials and methods |
WO2017123444A1 (en) | 2016-01-15 | 2017-07-20 | Carestream Health, Inc. | Method of preparing silver carboxylate soaps |
GB202006061D0 (en) | 2020-04-24 | 2020-06-10 | Fujifilm Mfg Europe Bv | Photographic paper |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1120429A (en) * | 1913-09-22 | 1914-12-08 | William Willis | Process for the production of photographic prints. |
US1120580A (en) * | 1913-09-22 | 1914-12-08 | William Willis | Sensitive photographic paper and process of making the same. |
-
0
- NL NL69470D patent/NL69470C/xx active
- NL NL69269D patent/NL69269C/xx active
- NL NL69271D patent/NL69271C/xx active
- BE BE470282D patent/BE470282A/xx unknown
- FR FR57512D patent/FR57512E/en not_active Expired
- BE BE476363D patent/BE476363A/xx unknown
- NL NL69270D patent/NL69270C/xx active
- NL NL69268D patent/NL69268C/xx active
- BE BE476364D patent/BE476364A/xx unknown
-
1946
- 1946-05-06 GB GB13667/46A patent/GB618061A/en not_active Expired
- 1946-06-14 GB GB16676/47A patent/GB602160A/en not_active Expired
- 1946-08-30 FR FR943206D patent/FR943206A/en not_active Expired
-
1947
- 1947-08-02 US US765818A patent/US2566245A/en not_active Expired - Lifetime
- 1947-08-07 FR FR983991D patent/FR983991A/en not_active Expired
- 1947-11-21 CH CH285167D patent/CH285167A/en unknown
- 1947-11-21 CH CH285163D patent/CH285163A/en unknown
- 1947-11-21 CH CH285162D patent/CH285162A/en unknown
- 1947-11-21 CH CH278967D patent/CH278967A/en unknown
- 1947-11-21 CH CH285168D patent/CH285168A/en unknown
- 1947-12-19 US US792842A patent/US2566263A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0106306A2 (en) | 1982-10-14 | 1984-04-25 | Fuji Photo Film Co., Ltd. | Silver halide color photographic materials |
EP0115351A2 (en) | 1983-01-28 | 1984-08-08 | Fuji Photo Film Co., Ltd. | Silver halide light-sensitive material |
EP0147854A2 (en) | 1983-12-29 | 1985-07-10 | Fuji Photo Film Co., Ltd. | Silver halide photographic light-sensitive materials |
EP0202784A2 (en) | 1985-04-23 | 1986-11-26 | Konica Corporation | Silver halide photographic light-sensitive material |
EP0200206A2 (en) | 1985-04-30 | 1986-11-05 | Konica Corporation | Silver halide photographic light-sensitive material |
EP0201027A2 (en) | 1985-04-30 | 1986-11-12 | Konica Corporation | Silver halide photographic light-sensitive material |
EP0209118A2 (en) | 1985-07-17 | 1987-01-21 | Konica Corporation | Silver halide photographic material |
EP0239363A2 (en) | 1986-03-25 | 1987-09-30 | Konica Corporation | Light-sensitive silver halide photographic material feasible for high speed processing |
EP0476327A1 (en) | 1990-08-20 | 1992-03-25 | Fuji Photo Film Co., Ltd. | Data-retainable photographic film product and process for producing color print |
EP0580041A2 (en) | 1992-07-10 | 1994-01-26 | Fuji Photo Film Co., Ltd. | Method of processing silver halide photographic material and composition for processing |
EP0589460A1 (en) | 1992-09-24 | 1994-03-30 | Fuji Photo Film Co., Ltd. | Method for processing a black & white silver halide light-sensitive material |
EP1700710A1 (en) | 2005-03-08 | 2006-09-13 | Konica Minolta Medical & Graphic, Inc. | Printing method, sheet material and mounting method of printing plate |
EP1750173A1 (en) | 2005-08-04 | 2007-02-07 | Fuji Photo Film Co., Ltd. | Silver halide photosensitive material and packaged body containing the same |
Also Published As
Publication number | Publication date |
---|---|
BE476363A (en) | |
GB602160A (en) | 1948-05-20 |
FR943206A (en) | 1949-03-02 |
NL69269C (en) | |
FR983991A (en) | 1951-06-29 |
NL69470C (en) | |
NL69268C (en) | |
CH285163A (en) | 1952-08-31 |
NL69271C (en) | 1900-01-01 |
CH285167A (en) | 1952-08-31 |
US2566245A (en) | 1951-08-28 |
CH278967A (en) | 1951-11-15 |
BE470282A (en) | |
US2566263A (en) | 1951-08-28 |
BE476364A (en) | |
FR57512E (en) | 1953-01-29 |
CH285162A (en) | 1952-08-31 |
NL69270C (en) | 1900-01-01 |
CH285168A (en) | 1952-08-31 |
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