US2566263A - Stabilizing photographic emulsions with chloropalladites and chloroplatinites - Google Patents
Stabilizing photographic emulsions with chloropalladites and chloroplatinites Download PDFInfo
- Publication number
- US2566263A US2566263A US792842A US79284247A US2566263A US 2566263 A US2566263 A US 2566263A US 792842 A US792842 A US 792842A US 79284247 A US79284247 A US 79284247A US 2566263 A US2566263 A US 2566263A
- Authority
- US
- United States
- Prior art keywords
- fog
- emulsion
- emulsions
- silver halide
- silver
- 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
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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
Definitions
- This invention relates to fog-inhibiting agents and stabilizers for photographic emulsions and to photographic emulsions containing them.
- photo-x graphic emulsions particularly ultra-sensitive emulsions or those containing coloring serisitiz'ers exhibit a tendency to form a deposit of silver in the'emulsion. This deposit extendsmore' or less uniformly over the entire emulsion and is known as fog.
- Photographic fog is of two types: local and general. Local fog is formed by exposure of the film or plate at undesired points as by a little leak in the camera. General fog orasit is some- (ores-i) adverse conditions of temperature and humidity by the use of compounds of the formulas:
- R'zMXi' and R3MX6 'in R is hydrogen or an 2.1km metai in cl'iiding" ammonium, M is'platinum or palladi M" is iridium or rhodium and is ahawgem
- Compounds suitable for use according" toour invention are those of :the abovegeneralformulas in which R is hydrogen or an alkali metal such as potassium or sodium, or ammonium; M
- M is iridium or rhodium
- X is a halogen atom such as chier nexor times known chemical fog is formed in a number of ways. It may be caused by the conditions under which the film or plate is stored, such as conditions of high temperature or humidity or unusually long time of storage;
- The" nature of the emulsion may also produce chemical fogas br'omirie; Suitable compounds are ammonium chloropalladite, (NH4)2(PdC14) ammonium chloroplatinite (NI-I4) zPtCli; ammonium chloroiridite 1 (NHLQBIICIQ and ammonium chlororhodite well as the conditions of development of the emulsion as by development for protracted periods of time or at temperatures above. normal. Highly sensitive emulsions are more likely to fog than those of lower sensitivity. wears primarily concerned with general or chemicaliog.
- a further object is to provideantifogging agents which stabilize the initial sensitivity of the emulsion.
- a still further object is to provide anti-fogging agents which improve the keeping of the emulsion in. tropical regions.
- the fog inhibiting agents which we have described may be used in various kinds of photographic emulsions. In addition to being useful in ordinary non-sensitized emulsions, they may also creased e v y e y Of the 5 be used in ortho-chromatic, panchromatic and Photographic P 1912)- We prefer to add X-ray emulsions.
- h f nhi n mp n af r the final they may be added to the emulsion before or digestion after-ripening, although they may after the dyes are added.
- Various silver salts may be added prior to the fin e p- Useful be used as the-sensitive salt, such as silver broconcentrations are from 0.25 to .9 gram o o mide, silver iodide, silver chloride and mixtures inhibitor per kilogram of silver nitrate converted of t
- Th dispersing agents may be gelatin to Silver halide in ma t emlllSiOIl- "or other colloid, such as collodion, alubumen, The fog inhibiting d Stabilizing action of 0111 cellulose organic derivatives or synthetic resins.
- the fog inhibiting agents of our invention are useful principally with emulsions which are desflverhhahde m gmkmg the emulslon' of ammom' veloped with organic developing agents not conum c taining metals.
- Such developing agents are hygelatmo'snver hahde 82311151011 droquinone, para aminophenol and its deriva containing silver halide as the sole sensitive intives, pyrogallol, paraphenylenediamine and its gredlent and 00111121111112 from gram to 3.9 derivatives, phenylhydroxylamine, etc. grams per kilogram of silver nitrate converted to silver halide in making the emulsion, of ammonium chloroplatinite.
- the method of stabilizing the speed and reducing the amount of fog produced upon development of a silver halide emulsion containingisilver halide as the sole sensitive ingredient which comprises incorporating in said emulsion from 0.25 gram to 3.9 grams per kilogram of silver nitrate converted to silver halide in making the emulsion, of a compound having the structure where X is a halogen atom, R is selected from the group consisting of hydrogen, alkali metals and ammonium, and M is selected from the group 15 1,120,580
- . 6 consisting of platinum and palladium, and developing said emulsion after exposure with an organic developing agent free of a metallic element.
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- 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)
Description
Patented Aug. 28, 1951 ST'AEILIZING rnorrodngi nio iifMULfsi'oNs WITH CHLOROPALLADITES. AND" CHLORO- PLATiNITEs Adrian P. H. Trivelliand William-F. Smith-Rochester, N.;Y., assignors to Eastman Kodak Company, Rochester, N. Y., acorporation of New Jersey No Drawing. Applicationfiecmber 19, 1947,
Serial No. 7925842 7 4 Claims.
This invention relates to fog-inhibiting agents and stabilizers for photographic emulsions and to photographic emulsions containing them.
This application is a continuation-impart of our application Serial No. 687,239, filed July 30,
1946, now abandoned. It is known that photo-x graphic emulsions, particularly ultra-sensitive emulsions or those containing coloring serisitiz'ers exhibit a tendency to form a deposit of silver in the'emulsion. This deposit extendsmore' or less uniformly over the entire emulsion and is known as fog. Photographic fog is of two types: local and general. Local fog is formed by exposure of the film or plate at undesired points as by a little leak in the camera. General fog orasit is some- (ores-i) adverse conditions of temperature and humidity by the use of compounds of the formulas:
R'zMXi' and R3MX6 'in R is hydrogen or an 2.1km metai in cl'iiding" ammonium, M is'platinum or palladi M" is iridium or rhodium and is ahawgem Compounds suitable for use according" toour invention are those of :the abovegeneralformulas in which R is hydrogen or an alkali metal such as potassium or sodium, or ammonium; M
platinum or palladium; M is iridium or rhodium;
and X is a halogen atom such as chier nexor times known chemical fog is formed in a number of ways. It may be caused by the conditions under which the film or plate is stored, such as conditions of high temperature or humidity or unusually long time of storage; The" nature of the emulsion may also produce chemical fogas br'omirie; Suitable compounds are ammonium chloropalladite, (NH4)2(PdC14) ammonium chloroplatinite (NI-I4) zPtCli; ammonium chloroiridite 1 (NHLQBIICIQ and ammonium chlororhodite well as the conditions of development of the emulsion as by development for protracted periods of time or at temperatures above. normal. Highly sensitive emulsions are more likely to fog than those of lower sensitivity. wears primarily concerned with general or chemicaliog.
of silver halide emulsions at or close to initial optimum values under conditions of high temperature and humidity. Thefog inhibitors which we propose to use are added to the emulsion General fog and loss of sensitivity of the emulsion are especially likely occur when the sensitive material is stored under conditions other than ideal, that is, under conditions of high temperature and humidity as tropical regions.
It is an object of the invention to provide novel anti-fogging or fog-inhibiting compounds for emulsions. A further object is to provideantifogging agents which stabilize the initial sensitivity of the emulsion. A still further" object is to provide anti-fogging agents which improve the keeping of the emulsion in. tropical regions. Other objects will appear from the followingdescription of our invention.
In our prior application, Serial No. 765,818Lfi1ed August '2, 1947, We described the use as foginhibitors of compounds of the general formula:
of which ammonium ohloropalladate is aneuample. We have now foundthat the sensitivity d fog of nhotqgraphic mul iee may em mw tained at or'close to initial optimum values'under during" the process of manufacture to avoid-lossof sensitivityfand to inhibit' thef growth of chem'a-g ical fog withpassage of time under non-ideal con j ditioiis of storage. Theseconditions freque exist where photographic emulsionsare' used tropical countries or on naval vessels or manufacturing plafits'wlie're adverse keeping conditions" prevail. The advantages of our discovery reside a widerange of climatic conditions.
A solution of ammonium chlorop-alladite or a other fog inhibitor used according to our invention, when added in suitable concentration lie" 40.
unsensitized or optically sensitized photograph emulsions before coating, does not eifecttlie sen-Q sitometric values for sensitivity and fog when.
measurements are made soon after coating.
When sensitcmetric masurements are mad}; after appreeiame intervals of time under tropical 6r dry conditions or storage at elevated tempera:
tures, however, these compounds do" stabilize plie tcgraphic speed andina'i'ntain reg at a' iewiev The preparation of s'iwr halide exams-ion in volves three separate operations (l') theemulsiii By the use of the compounds oi our invention, it is possible to maintain the sensitivity and fog.
3 cation and digestion or ripening of the silver halide, (2) the freeing of the emulsion from excess soluble salts, usually by washing, and (3) the second digestion or after-ripening to obtain in- The fog inhibiting agents which we have described may be used in various kinds of photographic emulsions. In addition to being useful in ordinary non-sensitized emulsions, they may also creased e v y e y Of the 5 be used in ortho-chromatic, panchromatic and Photographic P 1912)- We prefer to add X-ray emulsions. If used with sensitizing dyes, h f nhi n mp n af r the final they may be added to the emulsion before or digestion after-ripening, although they may after the dyes are added. Various silver salts may be added prior to the fin e p- Useful be used as the-sensitive salt, such as silver broconcentrations are from 0.25 to .9 gram o o mide, silver iodide, silver chloride and mixtures inhibitor per kilogram of silver nitrate converted of t Th dispersing agents may be gelatin to Silver halide in ma t emlllSiOIl- "or other colloid, such as collodion, alubumen, The fog inhibiting d Stabilizing action of 0111 cellulose organic derivatives or synthetic resins. compounds was determined by incubation of the t 1 be understood t t we contemplate as emulsions with simulated tropical conditions an 5 included within our invention all modifications also y incubation in dry heat at and equivalents falling Within the scope of the apous lengths of time from 12 days to 2 months. pended 1 The results of these tests are tabulated below and w claim; are compared with the initial Speed, gamma and 1. A stabilized silver halide emulsion containfog of the emulsions with and Withou? the Stabi' ing silver halide as the sole sensitive ingredient 112mg compounfi- The tests from Whlcl} the and containing from 0.25 gram to 3.9 grams per IOWmg tabulatlon was made used a hlgh'speed kilogram of silver nitrate converted to silver negative silver halide emulslon exposed on an halide in making the emulsion, f a compound Eastman type IIB sensitometer and developed for having the Structure five minutes in a developer of the following composition: R2MX4 Grams where R is selected from the group consisting of Monomethyl paramtnophenol Sulfate ydrogen, alkali metals and ammonium, M is sesodium White (desmcated) 30 lected from the group consisting of platinum and g i 3 palladium and X is a halogen atom. gg i g z i gfi g 0 5 2. A. stabilized gelatino-silver halide emulsion Water to one liter containing sliver halide as the sole sensitive ingredient and containing from 0.25 gram to 3.9 The results are as follows: grams per kilogram of silver nitrate converted to Routine 12 da. at 120 F. 8 wks. Tropical V (N HdlalPdgh grams g. g ig 5 Gamma Fog ig Gamma Fog ig Gamma Fog Routine 12 da. at 120 F 8 wks Tropical (NHmPtghfigroam PM g a ig Q Gamma Fog ig 5 Gamma Fog i g Gamma Fog Routine 12 (is. at 120 F 8 wks Tropical (N H1) QIIOIQ gram per kg'AgN ig Gamma Fog ig h Gamma Fog ig Gamma Fog None 710 1.48 .08 300 1.51 is 193 1.34 .41 .434 890 1.35 .10 575 1.29 .20 198 1,40 .30 1,380 1.17 .11 490 1.33 .22 218 1. 39 .31 935 1.35 .10 535 1.30 20 210 1. 30 .30 370 1.39 .09 343 1.40 19 153 1.37 .52
The fog inhibiting agents of our invention are useful principally with emulsions which are desflverhhahde m gmkmg the emulslon' of ammom' veloped with organic developing agents not conum c taining metals. Such developing agents are hygelatmo'snver hahde 82311151011 droquinone, para aminophenol and its deriva containing silver halide as the sole sensitive intives, pyrogallol, paraphenylenediamine and its gredlent and 00111121111112 from gram to 3.9 derivatives, phenylhydroxylamine, etc. grams per kilogram of silver nitrate converted to silver halide in making the emulsion, of ammonium chloroplatinite.
4. The method of stabilizing the speed and reducing the amount of fog produced upon development of a silver halide emulsion containingisilver halide as the sole sensitive ingredient, which comprises incorporating in said emulsion from 0.25 gram to 3.9 grams per kilogram of silver nitrate converted to silver halide in making the emulsion, of a compound having the structure where X is a halogen atom, R is selected from the group consisting of hydrogen, alkali metals and ammonium, and M is selected from the group 15 1,120,580
. 6 consisting of platinum and palladium, and developing said emulsion after exposure with an organic developing agent free of a metallic element.
ADRIAN P. H. TRIVELLI. WILLIAM F. SMITH.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number I Name Date 1,120,429 Willis Dec. 8, 1914 Willis Dec. :8, 1914
Claims (1)
1. A STABILIZED SILVER HALIDE EMULSION CONTAINING SILVER HALIDE AS THE SOLE SENSITIVE INGREDIENT AND CONTAINING FROM 2.25 GRAM TO 3.9 GRAMS PER KILOGRAM OF SILVER NITRATE CONVERTED TO SILVER HALIDE IN MAKING THE EMULSION, OF A COMPOUND HAVING THE STRUCTURE
Priority Applications (21)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL69268D NL69268C (en) | 1945-08-30 | ||
FR57512D FR57512E (en) | 1945-08-30 | Improvements to anti-fog products for photographic emulsions | |
NL69270D NL69270C (en) | 1945-08-30 | ||
BE470282D BE470282A (en) | 1945-08-30 | ||
NL69470D NL69470C (en) | 1945-08-30 | ||
NL69269D NL69269C (en) | 1945-08-30 | ||
BE476363D BE476363A (en) | 1945-08-30 | ||
BE476364D BE476364A (en) | 1945-08-30 | ||
NL69271D NL69271C (en) | 1945-08-30 | ||
GB13667/46A GB618061A (en) | 1945-08-30 | 1946-05-06 | Improvements in sensitive photographic materials |
GB16676/47A GB602160A (en) | 1945-08-30 | 1946-06-14 | Improvements in sensitive photographic materials |
US683772A US2448060A (en) | 1945-08-30 | 1946-07-15 | Photographic emulsions sensitized with salts of metals of group viii of the periodicarrangement of the elements |
FR943206D FR943206A (en) | 1945-08-30 | 1946-08-30 | Improvements to anti-fog products for photographic emulsions |
US765818A US2566245A (en) | 1945-08-30 | 1947-08-02 | Complex compounds of the platinum group as photographic fog inhibitors |
FR983991D FR983991A (en) | 1945-08-30 | 1947-08-07 | sensitized photographic emulsions |
CH285167D CH285167A (en) | 1945-08-30 | 1947-11-21 | Photographic silver halide stable emulsion and process for preparing this emulsion. |
CH285163D CH285163A (en) | 1945-08-30 | 1947-11-21 | Photographic silver halide stable emulsion and process for preparing this emulsion. |
CH278967D CH278967A (en) | 1945-08-30 | 1947-11-21 | Photographic emulsion stable to silver halides, and process for preparing this emulsion. |
CH285168D CH285168A (en) | 1945-08-30 | 1947-11-21 | Photographic emulsion stable to silver halides, and process for preparing this emulsion. |
CH285162D CH285162A (en) | 1945-08-30 | 1947-11-21 | A stable photographic silver halide emulsion and a process for preparing this emulsion. |
US792842A US2566263A (en) | 1945-08-30 | 1947-12-19 | Stabilizing photographic emulsions with chloropalladites and chloroplatinites |
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 |
---|---|
US2566263A true US2566263A (en) | 1951-08-28 |
Family
ID=27505115
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US765818A Expired - Lifetime US2566245A (en) | 1945-08-30 | 1947-08-02 | Complex compounds of the platinum group as photographic fog inhibitors |
US792842A Expired - Lifetime US2566263A (en) | 1945-08-30 | 1947-12-19 | Stabilizing photographic emulsions with chloropalladites and chloroplatinites |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US765818A Expired - Lifetime US2566245A (en) | 1945-08-30 | 1947-08-02 | Complex compounds of the platinum group as photographic fog inhibitors |
Country Status (6)
Country | Link |
---|---|
US (2) | US2566245A (en) |
BE (3) | BE476363A (en) |
CH (5) | CH285167A (en) |
FR (3) | FR943206A (en) |
GB (2) | GB618061A (en) |
NL (5) | NL69271C (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4102312A (en) * | 1975-10-30 | 1978-07-25 | Toyota Jidosha Kogyo Kabushiki Kaisha | Thermally developable light-sensitive materials |
EP0124795A2 (en) | 1983-04-11 | 1984-11-14 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
US4617258A (en) * | 1982-04-09 | 1986-10-14 | Konishiroku Photo Industry Co., Ltd. | 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 |
WO1989012847A1 (en) * | 1988-06-20 | 1989-12-28 | 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 |
US5314670A (en) * | 1991-10-30 | 1994-05-24 | Eastman Kodak Company | Recovery of rhodium values |
US5492804A (en) * | 1994-06-30 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Chromogenic leuco redox-dye-releasing compounds for photothermographic elements |
US5492805A (en) * | 1994-06-30 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Blocked leuco dyes for photothermographic elements |
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 |
US5891615A (en) * | 1997-04-08 | 1999-04-06 | Imation Corp. | Chemical sensitization of photothermographic silver halide emulsions |
US5928857A (en) * | 1994-11-16 | 1999-07-27 | Minnesota Mining And Manufacturing Company | Photothermographic element with improved adherence between layers |
US5939249A (en) * | 1997-06-24 | 1999-08-17 | Imation Corp. | Photothermographic element with iridium and copper doped silver halide grains |
US6117624A (en) * | 1993-06-04 | 2000-09-12 | Eastman Kodak Company | Infrared sensitized, photothermographic article |
US6197485B1 (en) * | 1992-11-12 | 2001-03-06 | Minnesota Mining & Manufacturing Company | Photographic assemblage comprising a silver halide photographic element sealed in a closed vessel |
US20060057509A1 (en) * | 2002-11-20 | 2006-03-16 | 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 |
WO2015148028A1 (en) | 2014-03-24 | 2015-10-01 | Carestream Health, Inc. | Thermally developable imaging materials |
WO2016073086A1 (en) | 2014-11-04 | 2016-05-12 | Carestream Health, Inc. | Image forming materials, preparations, and compositions |
WO2016195950A1 (en) | 2015-06-02 | 2016-12-08 | 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 |
WO2021213762A1 (en) | 2020-04-24 | 2021-10-28 | Fujifilm Manufacturing Europe Bv | Photographic paper |
Families Citing this family (26)
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---|---|---|---|---|
US3023102A (en) * | 1957-09-24 | 1962-02-27 | Gen Aniline & Film Corp | Direct positive photographic emulsion |
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 |
US4247617A (en) * | 1979-05-11 | 1981-01-27 | Polaroid Corporation | Silver diffusion transfer film unit transparency |
JPS5969754A (en) | 1982-10-14 | 1984-04-20 | Fuji Photo Film Co Ltd | Color photosensitive silver halide material |
JPS59137946A (en) | 1983-01-28 | 1984-08-08 | Fuji Photo Film Co Ltd | Silver halide photosensitive material |
JPS60143331A (en) | 1983-12-29 | 1985-07-29 | Fuji Photo Film Co Ltd | Silver halide photosensitive material |
JPS61245151A (en) | 1985-04-23 | 1986-10-31 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
JPS61250643A (en) | 1985-04-30 | 1986-11-07 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
JPS61250645A (en) | 1985-04-30 | 1986-11-07 | Konishiroku Photo Ind Co Ltd | Silver halide photographic sensitive material |
DE3682128D1 (en) | 1985-07-17 | 1991-11-28 | Konishiroku Photo Ind | PHOTOGRAPHIC SILVER HALOGENID MATERIAL. |
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 |
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 |
US4937180A (en) * | 1988-04-08 | 1990-06-26 | Eastman Kodak Company | Photographic emulsions containing internally modified silver halide grains |
DE69131785T2 (en) | 1990-08-20 | 2000-05-11 | Fuji Photo Film Co., Ltd. | Data-preserving photographic film product and method for producing a color image |
JP2824717B2 (en) | 1992-07-10 | 1998-11-18 | 富士写真フイルム株式会社 | Processing method of silver halide photographic material |
EP0589460B1 (en) | 1992-09-24 | 2000-08-09 | Fuji Photo Film Co., Ltd. | Method for processing a black & white silver halide light-sensitive material |
US5614360A (en) * | 1994-12-16 | 1997-03-25 | Eastman Kodak Company | Photographic element and coating composition |
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 |
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 |
JP2006247858A (en) | 2005-03-08 | 2006-09-21 | Konica Minolta Medical & Graphic Inc | Printing method, block copy sheeting material and method for fitting printing plate material |
JP2007041376A (en) | 2005-08-04 | 2007-02-15 | Fujifilm Holdings Corp | Silver halide photosensitive material and package including the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1120580A (en) * | 1913-09-22 | 1914-12-08 | William Willis | Sensitive photographic paper and process of making the same. |
US1120429A (en) * | 1913-09-22 | 1914-12-08 | William Willis | Process for the production of photographic prints. |
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0
- BE BE476364D patent/BE476364A/xx unknown
- NL NL69270D patent/NL69270C/xx active
- NL NL69268D patent/NL69268C/xx active
- FR FR57512D patent/FR57512E/en not_active Expired
- NL NL69470D patent/NL69470C/xx active
- BE BE470282D patent/BE470282A/xx unknown
- BE BE476363D patent/BE476363A/xx unknown
- NL NL69269D patent/NL69269C/xx active
- NL NL69271D patent/NL69271C/xx active
-
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 CH278967D patent/CH278967A/en unknown
- 1947-11-21 CH CH285163D patent/CH285163A/en unknown
- 1947-11-21 CH CH285168D patent/CH285168A/en unknown
- 1947-11-21 CH CH285162D patent/CH285162A/en unknown
- 1947-12-19 US US792842A patent/US2566263A/en not_active Expired - Lifetime
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US1120429A (en) * | 1913-09-22 | 1914-12-08 | William Willis | Process for the production of photographic prints. |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
US4102312A (en) * | 1975-10-30 | 1978-07-25 | Toyota Jidosha Kogyo Kabushiki Kaisha | Thermally developable light-sensitive materials |
US4617258A (en) * | 1982-04-09 | 1986-10-14 | Konishiroku Photo Industry Co., Ltd. | Silver halide photographic material |
EP0124795A2 (en) | 1983-04-11 | 1984-11-14 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
EP0239363A2 (en) | 1986-03-25 | 1987-09-30 | Konica Corporation | Light-sensitive silver halide photographic material feasible for high speed processing |
US4892808A (en) * | 1988-06-20 | 1990-01-09 | Eastman Kodak Company | Photographic material protected against hydrogen cyanide gas |
WO1989012847A1 (en) * | 1988-06-20 | 1989-12-28 | 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 |
US5314670A (en) * | 1991-10-30 | 1994-05-24 | Eastman Kodak Company | Recovery of rhodium values |
US6197485B1 (en) * | 1992-11-12 | 2001-03-06 | Minnesota Mining & Manufacturing Company | Photographic assemblage comprising a silver halide photographic element sealed in a closed vessel |
US6117624A (en) * | 1993-06-04 | 2000-09-12 | Eastman Kodak Company | Infrared sensitized, photothermographic article |
US5492804A (en) * | 1994-06-30 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Chromogenic leuco redox-dye-releasing compounds for photothermographic elements |
US5492805A (en) * | 1994-06-30 | 1996-02-20 | Minnesota Mining And Manufacturing Company | Blocked leuco dyes for photothermographic elements |
US5696289A (en) * | 1994-06-30 | 1997-12-09 | Minnesota Mining And Manufacturing Company | Blocked leuco dyes for photothermographic elements |
US5705676A (en) * | 1994-06-30 | 1998-01-06 | 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 |
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 |
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 |
US6060231A (en) * | 1997-06-24 | 2000-05-09 | Eastman Kodak Company | Photothermographic element with iridium and copper doped silver halide grains |
US20060057509A1 (en) * | 2002-11-20 | 2006-03-16 | Konica Minolta Photo Imaging, Inc. | Silver halide photosensitive material and image forming method therefor |
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 |
WO2015148028A1 (en) | 2014-03-24 | 2015-10-01 | Carestream Health, Inc. | Thermally developable imaging materials |
US9335623B2 (en) | 2014-03-24 | 2016-05-10 | Carestream Health, Inc. | Thermally developable imaging materials |
WO2016073086A1 (en) | 2014-11-04 | 2016-05-12 | Carestream Health, Inc. | Image forming materials, preparations, and compositions |
US9523915B2 (en) | 2014-11-04 | 2016-12-20 | Carestream Health, Inc. | Image forming materials, preparations, and compositions |
WO2016195950A1 (en) | 2015-06-02 | 2016-12-08 | Carestream Health, Inc. | Thermally developable imaging materials and methods |
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 |
WO2021213762A1 (en) | 2020-04-24 | 2021-10-28 | Fujifilm Manufacturing Europe Bv | Photographic paper |
Also Published As
Publication number | Publication date |
---|---|
FR983991A (en) | 1951-06-29 |
CH285163A (en) | 1952-08-31 |
US2566245A (en) | 1951-08-28 |
GB618061A (en) | 1949-02-16 |
NL69470C (en) | |
BE470282A (en) | |
CH285168A (en) | 1952-08-31 |
BE476363A (en) | |
FR943206A (en) | 1949-03-02 |
NL69271C (en) | 1900-01-01 |
CH278967A (en) | 1951-11-15 |
GB602160A (en) | 1948-05-20 |
CH285167A (en) | 1952-08-31 |
FR57512E (en) | 1953-01-29 |
NL69269C (en) | |
BE476364A (en) | |
NL69268C (en) | |
CH285162A (en) | 1952-08-31 |
NL69270C (en) | 1900-01-01 |
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