US2787544A - Method of making photographic packet emulsions - Google Patents
Method of making photographic packet emulsions Download PDFInfo
- Publication number
- US2787544A US2787544A US476540A US47654054A US2787544A US 2787544 A US2787544 A US 2787544A US 476540 A US476540 A US 476540A US 47654054 A US47654054 A US 47654054A US 2787544 A US2787544 A US 2787544A
- Authority
- US
- United States
- Prior art keywords
- color
- solvent
- dispersion
- packet
- forming compound
- 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
- 239000000839 emulsion Substances 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000006185 dispersion Substances 0.000 claims description 46
- 239000002904 solvent Substances 0.000 claims description 37
- 238000009835 boiling Methods 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 26
- 108010010803 Gelatin Proteins 0.000 claims description 21
- 229920000159 gelatin Polymers 0.000 claims description 21
- 239000008273 gelatin Substances 0.000 claims description 21
- 235000019322 gelatine Nutrition 0.000 claims description 21
- 235000011852 gelatine desserts Nutrition 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 17
- 239000003960 organic solvent Substances 0.000 claims description 13
- -1 AMINO Chemical class 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 229910052709 silver Inorganic materials 0.000 claims description 11
- 239000004332 silver Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 229940014259 gelatin Drugs 0.000 description 19
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 12
- 239000000975 dye Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- BCJMVOVFCJGRAX-BTJKTKAUSA-N (z)-4-amino-4-oxobut-2-enoic acid;styrene Chemical compound C=CC1=CC=CC=C1.NC(=O)\C=C/C(O)=O BCJMVOVFCJGRAX-BTJKTKAUSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- GIXSFSVVKULPEK-UHFFFAOYSA-N 2,4-dichloro-3-methylphenol Chemical compound CC1=C(Cl)C=CC(O)=C1Cl GIXSFSVVKULPEK-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- NMJJFJNHVMGPGM-UHFFFAOYSA-N butyl formate Chemical compound CCCCOC=O NMJJFJNHVMGPGM-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical compound CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- ZRHUHDUEXWHZMA-UHFFFAOYSA-N 1,4-dihydropyrazol-5-one Chemical compound O=C1CC=NN1 ZRHUHDUEXWHZMA-UHFFFAOYSA-N 0.000 description 1
- OHNQVRIYXBIAPC-UHFFFAOYSA-N 2-phenoxy-N-phenylheptanamide Chemical compound C(CCCC)C(C(=O)NC1=CC=CC=C1)OC1=CC=CC=C1 OHNQVRIYXBIAPC-UHFFFAOYSA-N 0.000 description 1
- XBTWVJKPQPQTDW-UHFFFAOYSA-N 4-n,4-n-diethyl-2-methylbenzene-1,4-diamine Chemical compound CCN(CC)C1=CC=C(N)C(C)=C1 XBTWVJKPQPQTDW-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride 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
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 125000000738 acetamido group Chemical group [H]C([H])([H])C(=O)N([H])[*] 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000043 benzamido group Chemical group [H]N([*])C(=O)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 description 1
- 239000001639 calcium acetate Substances 0.000 description 1
- 235000011092 calcium acetate Nutrition 0.000 description 1
- 229960005147 calcium acetate Drugs 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229960002380 dibutyl phthalate Drugs 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- MCSAJNNLRCFZED-UHFFFAOYSA-N nitroethane Chemical compound CC[N+]([O-])=O MCSAJNNLRCFZED-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
Images
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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/388—Processes for the incorporation in the emulsion of substances liberating photographically active agents or colour-coupling substances; Solvents therefor
Definitions
- This invention relates to color photography and particularly to. a method for making packet emulsions.
- Our'novel methods consists in (l) mixing the coupler with a low boiling organic solvent for'the coupler as shown in the first three boxes of the drawing, anddisp ersing the mixture in gelatin asshown in tlie fourth bo r of theidrawing, (2) mixing the coupler dispersion withasik ver halide emulsion and forming "a packet dispersion of the coupler and silver halide in 'gelatin;a s 'shown in the fifth box of the drawing, and (3') adding a highboilin'g coupler solvent to the packet dispersionasjshown in the last box of the drawing.” In'thisway the.
- ratiolof, coupler to high boiling crystalloidal coupler solyent can: be readily adjusted so that any ratiobetween lfi andlflA orlower is obtained.
- Thismethlod not onlyperrnits improvedcolor separation to be obtainedwlien theliigh boiling solvent is added after formation of.the .pa ckets but it, also has: the advantage, that t'ofthe pa clretsfcon taining couplerwithout couplersolvept. any; number, of
- Low boiling organic solvents in which the coupler is first dissolved and which may then be removed partially or completely prior to making the packets includenitro methane, nitroethane, methyl, ethyl andpropyl acetates, chloroform, and ethyl and butyl formate.
- High boiling coupler solvents which are added to the packet dispersions are organic crystalloidal materials which are substantially water-insoluble, have low molecular weight, have a boiling point above 175 C., and have a high solvent action for the color-forming compound. and for the dyes formed from it, and are permeable to photographic developer and its oxidation products.
- solvents include di-nrbutyl phthalate, triphenyl phosphate, tricresyl phosphate, N,n-butyl acetanilideand. other compounds disclosed on pages 2 and 3 of Jelley and Vittum U. S. Patent 2,322,027.
- Patent 2,698,794 is preferably employed except that the high hoilingcrystalloidal solvent is not added to the coupler dispersion-or packet dispersion as in that application, but is separately dispersed andadded later.
- a Wfl'telfiSOlllblQ poiymer such as the sodium salt of a copolymer of methacrylic acid? and methyl-wmethaerylate may be used together withv a packet-forming component such as the ammonium salt of styrene-maleamic acid to polymer.
- a packet-forming component such as the ammonium salt of styrene-maleamic acid to polymer.
- This type of water-soluble polymer is..not a necessity for the'formation of packets.
- Naturallyfoccurring .vater-soluble polymers and modified naturally occurring water solu ble polymers can also be used,.e. g., alginfcarboxy methylcellulose, and cellulose sulfate Our invention will now be, illustrated by the following examples:
- a cyan coupler dispersion was made by dissolving 3 grams of the coupler 2-[a-(2,4-di-tert-amylphenoxy)-n butyrylamino]-4,6-dichloro--methyl phenol in 300 cc. of ethyl acetate at 40 C., adding the solution to 100 cc. of a 5% solution of Alkanol B dispersing agent in 850 cc. of gelatin solution, and dispersing it therein. The dispersion was set on a chill plate at F., noodled and air dried at 78 C. and relative humidity.
- Example 2 A cyan packet dispersion was made as in Example 1. A magenta packet dispersion was similarly made, using 100 grams of the magenta coupler 1-(2',4',6'-trichlorophenyl)-3-[3"-(2",4"'-di-tert. amylphenoxy acetamido)- 5 CC. Di-n-butyl phthalate 6 Gelatin (10% solution) 27 Alkanol B (10% solution) 6 Water 2 dispersed in a colloid mill.
- the amount of coupler solvent (di-n-butyl phthalate) dispersion added to the packet emulsions is such that the ratio of couplers to coupler solvent is about 1:1, in order to obtain adequate dye density in the resulting coating.
- ratios of coupler to coupler solvent of 1: /2, 1:% and even 1:0 can be employed with certain couplers or if a solvent such as benzyl alcohol is present in the developer. Higher ratios, such as 1:2, 1:3, etc., may also be employed.
- our invention may be em.- ployed in making packet dispersions in a layer in which the packet emulsion is sensitive only to a single primary spectral region, either in single layer or in multi-layer coatings, or may be used in making packets in which two or more sensitive packets are mixed in a single photographic layer.
- the method of incorporating a color former in a photographic packet emulsion which comprises mixing a color-forming compound capable of reacting with a primary aromatic amino developing agent on photographic development, with a low boiling water-insoluble organic solvent for the color-forming compound, said low-boiling solvent having a boiling point below C., dispersing the solution of color-forming compound and low boiling organic solvent in gelatin, mixing the colorformer dispersion with a gelatino-silver halide emulsion, forming in a gelatin continuous phase, a packet dispersion of said emulsion and color-former, and then mixing said packet dispersion with a solution of a substantially water-insoluble, low molecular weight organic crystalloidal solvent for the color-forming compound and for dyes formed therefrom, and which solvent has a boiling point above about C. and is permeable to photographic developer oxidation products, to form a packet dispersion of said color-forming compound containing said crystalloidal solvent.
- the method of incorporating a color former in a photographic packet emulsion which comprises mixing a color-forming compound capable of reacting with a primary aromatic amino developing agent on photographic development, with a low boiling water-insoluble organic solvent for the color-forming compound, said low-boiling solvent having a boiling point below 125 C., dispersing the solution of color-forming compound and low boiling organic solvent in gelatin, drying said dispersion to remove substantially all organic solvent, mixing the color-former dispersion with a gelatino-silver halide emulsion, forming in a gelatin continuous phase, a packet dispersion of said emulsion and color-former, with a styrene interpolymer having carboxyl groups on the polymeric chain, and then mixing said packet dispersion with a solution of a substantially water-insoluble, low molecular weight organic crystalloidal solvent for the colorforming compound and for dyes formed therefrom, and which solvent has a boiling point above about 175 C. and is permeable to
- the method of incorporating a color former in a photographic packet emulsion which comprises mixing a color-forming compound capable of reacting with a primary aromatic amino developing agent on photographic development, with a low boiling waterinsoluble organic solvent for the color-forming compound, said low-boiling solvent having a boiling point below 125 C., dispersing the solution of color-forming compound and low boiling organic solvent in gelatin, drying said dispersion to remove substantially all organic solvent, mixing the colorformer dispersion with a gelatino-silver halide emulsion, forming in a gelatin continuous phase a packet dispersion of said emulsion and color-former, with a styrene interpolymer having carboxyl groups on the polymeric chain, separately dispersing in gelatin a substantially water- Insoluble, low molecular weight organic crystalloidal solvent for the color-forming compound and for dyes formed therefrom, and which solvent has a boiling point above about 175 C. and is permeable to photographic developer oxidation products, and
- the method of incorporating a color former in a photographic packet emulsion which comprises mixing a color forming compound capable of reacting with a primary aromaticamino developing agent on photographic development, with ethyl acetate, dispersing the solution of color-forming compound and ethyl acetate in gelatin, drying said dispersion to remove substantially all ethyl acetate, mixing the color-former dispersion with a gelatino-silver halide emulsion, forming in a gelatin continuous phase a packet dispersion of said emulsion and color-former with the ammonium salt of a styrenemaleamic acid polymer, separately dispersing di-n-butyl 5 phthalate in gelatin, and mixing said packet dispersion and said di-n-butyl phthalate dispersion to form a packet dispersion of said color-forming compound and di-n-butyl phthalate.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Pyridine Compounds (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE543744D BE543744A (OSRAM) | 1954-12-20 | ||
| US476539A US2801170A (en) | 1954-12-20 | 1954-12-20 | Preparation of color former dispersions |
| US476540A US2787544A (en) | 1954-12-20 | 1954-12-20 | Method of making photographic packet emulsions |
| GB34887/55A GB798512A (en) | 1954-12-20 | 1955-12-06 | Method of making photographic packet emulsions |
| GB35055/55A GB791353A (en) | 1954-12-20 | 1955-12-07 | Method of making dispersions of colour couplers for use in light-sensitive silver salt emulsions |
| DEE11702A DE963295C (de) | 1954-12-20 | 1955-12-18 | Verfahren zur Einlagerung eines Kupplers oder Farbstoffbildners in eine photographische Halogensilber-Gelatineemulsion |
| FR1151479D FR1151479A (fr) | 1954-12-20 | 1955-12-19 | Procédé pour l'incorporation de coupleurs chromogènes aux émulsions photosensibles et nouveaux produits obtenus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US476539A US2801170A (en) | 1954-12-20 | 1954-12-20 | Preparation of color former dispersions |
| US476540A US2787544A (en) | 1954-12-20 | 1954-12-20 | Method of making photographic packet emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2787544A true US2787544A (en) | 1957-04-02 |
Family
ID=27045207
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US476540A Expired - Lifetime US2787544A (en) | 1954-12-20 | 1954-12-20 | Method of making photographic packet emulsions |
| US476539A Expired - Lifetime US2801170A (en) | 1954-12-20 | 1954-12-20 | Preparation of color former dispersions |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US476539A Expired - Lifetime US2801170A (en) | 1954-12-20 | 1954-12-20 | Preparation of color former dispersions |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US2787544A (OSRAM) |
| BE (1) | BE543744A (OSRAM) |
| DE (1) | DE963295C (OSRAM) |
| FR (1) | FR1151479A (OSRAM) |
| GB (2) | GB798512A (OSRAM) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2949360A (en) * | 1956-08-31 | 1960-08-16 | Eastman Kodak Co | Photographic color former dispersions |
| US3012885A (en) * | 1956-12-03 | 1961-12-12 | Eastman Kodak Co | Pressure image transfer process |
| US5008179A (en) * | 1989-11-22 | 1991-04-16 | Eastman Kodak Company | Increased activity precipitated photographic materials |
| US5468604A (en) * | 1992-11-18 | 1995-11-21 | Eastman Kodak Company | Photographic dispersion |
| US5770352A (en) * | 1996-04-18 | 1998-06-23 | Eastman Kodak Company | High activity photographic dispersions with ultra low levels of permanent solvent |
| US5830632A (en) * | 1996-10-31 | 1998-11-03 | Eastman Kodak Company | Photographic element containing dispersions of high dye-yield couplers having improved photographic activity |
| US5879867A (en) * | 1997-08-22 | 1999-03-09 | Eastman Kodak Company | Silver halide light-sensitive element |
| US5891613A (en) * | 1997-08-22 | 1999-04-06 | Eastman Kodak Company | Silver halide light-sensitive element |
| US6420103B1 (en) | 1999-03-10 | 2002-07-16 | Eastman Kodak Company | Photographic element |
| US20050089806A1 (en) * | 2003-10-24 | 2005-04-28 | Zengerle Paul L. | Method of preparation of direct dispersions of photographically useful chemicals |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE590403A (OSRAM) * | 1959-04-30 | |||
| US3244524A (en) * | 1960-03-01 | 1966-04-05 | Gen Aniline & Film Corp | U. v. absorbing composition |
| US3244518A (en) * | 1960-05-19 | 1966-04-05 | Gen Aniline & Film Corp | Process for obtaining multicolor images and a multilayer sheet for use therein |
| US3092495A (en) * | 1960-06-09 | 1963-06-04 | Gen Aniline & Film Corp | Lower alkyl lactate coupler solvents |
| US3515557A (en) * | 1965-04-12 | 1970-06-02 | Du Pont | Photographic color film and process of making same |
| DE3031404A1 (de) * | 1980-08-20 | 1982-04-01 | Agfa-Gevaert Ag, 5090 Leverkusen | Verfahren zur herstellung von dispersionen und fotografische materialien |
| JPS59188641A (ja) | 1983-04-11 | 1984-10-26 | Fuji Photo Film Co Ltd | ハロゲン化銀写真乳剤 |
| US4725529A (en) | 1985-04-30 | 1988-02-16 | Konishiroku Photo Industry Co., Ltd. | Developing inhibitor arrangment in light-sensitive silver halide color photographic materials |
| DE3681347D1 (de) | 1985-05-31 | 1991-10-17 | Konishiroku Photo Ind | Verfahren zur herstellung eines direkt positiven farbbildes. |
| JPH0711695B2 (ja) | 1985-09-25 | 1995-02-08 | 富士写真フイルム株式会社 | 撮影用ハロゲン化銀カラー感光材料の処理方法 |
| AU591540B2 (en) | 1985-12-28 | 1989-12-07 | Konishiroku Photo Industry Co., Ltd. | Method of processing light-sensitive silver halide color photographic material |
| JPH0833628B2 (ja) | 1987-12-15 | 1996-03-29 | 富士写真フイルム株式会社 | ハロゲン化銀カラー写真感光材料 |
| US5089380A (en) * | 1989-10-02 | 1992-02-18 | Eastman Kodak Company | Methods of preparation of precipitated coupler dispersions with increased photographic activity |
| US4970139A (en) * | 1989-10-02 | 1990-11-13 | Eastman Kodak Company | Methods of preparation of precipitated coupler dispersions with increased photographic activity |
| DE4433637A1 (de) | 1994-09-21 | 1996-03-28 | Agfa Gevaert Ag | Farbfotografisches Silberhalogenidmaterial |
| US5585230A (en) * | 1995-03-23 | 1996-12-17 | Eastman Kodak Company | Cyan coupler dispersion with improved stability |
| US5726003A (en) * | 1996-08-15 | 1998-03-10 | Eastman Kodak Company | Cyan coupler dispersion with increased activity |
| US5932404A (en) * | 1996-12-18 | 1999-08-03 | Eastman Kodak Company | Silver halide photographic material containing a polymer with a photographically useful group which is rendered non-diffusible by cross-linking |
| US7223529B1 (en) | 2006-05-05 | 2007-05-29 | Eastman Kodak Company | Silver halide light-sensitive element |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB540368A (en) * | 1939-01-23 | 1941-10-15 | Eastman Kodak Co | Improvements in and relating to colour couplers and to colour photographic materialscontaining them |
| US2322027A (en) * | 1940-02-24 | 1943-06-15 | Eastman Kodak Co | Color photography |
| US2698794A (en) * | 1950-04-15 | 1955-01-04 | Eastman Kodak Co | Mixed packet photographic emulsions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2478400A (en) * | 1945-08-17 | 1949-08-09 | Eastman Kodak Co | Silver halide photographic emulsion with developer and color coupler dispersed therein |
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0
- BE BE543744D patent/BE543744A/xx unknown
-
1954
- 1954-12-20 US US476540A patent/US2787544A/en not_active Expired - Lifetime
- 1954-12-20 US US476539A patent/US2801170A/en not_active Expired - Lifetime
-
1955
- 1955-12-06 GB GB34887/55A patent/GB798512A/en not_active Expired
- 1955-12-07 GB GB35055/55A patent/GB791353A/en not_active Expired
- 1955-12-18 DE DEE11702A patent/DE963295C/de not_active Expired
- 1955-12-19 FR FR1151479D patent/FR1151479A/fr not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB540368A (en) * | 1939-01-23 | 1941-10-15 | Eastman Kodak Co | Improvements in and relating to colour couplers and to colour photographic materialscontaining them |
| US2322027A (en) * | 1940-02-24 | 1943-06-15 | Eastman Kodak Co | Color photography |
| US2698794A (en) * | 1950-04-15 | 1955-01-04 | Eastman Kodak Co | Mixed packet photographic emulsions |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2949360A (en) * | 1956-08-31 | 1960-08-16 | Eastman Kodak Co | Photographic color former dispersions |
| US3012885A (en) * | 1956-12-03 | 1961-12-12 | Eastman Kodak Co | Pressure image transfer process |
| US5008179A (en) * | 1989-11-22 | 1991-04-16 | Eastman Kodak Company | Increased activity precipitated photographic materials |
| US5468604A (en) * | 1992-11-18 | 1995-11-21 | Eastman Kodak Company | Photographic dispersion |
| US5770352A (en) * | 1996-04-18 | 1998-06-23 | Eastman Kodak Company | High activity photographic dispersions with ultra low levels of permanent solvent |
| US5830632A (en) * | 1996-10-31 | 1998-11-03 | Eastman Kodak Company | Photographic element containing dispersions of high dye-yield couplers having improved photographic activity |
| US5879867A (en) * | 1997-08-22 | 1999-03-09 | Eastman Kodak Company | Silver halide light-sensitive element |
| US5891613A (en) * | 1997-08-22 | 1999-04-06 | Eastman Kodak Company | Silver halide light-sensitive element |
| US6420103B1 (en) | 1999-03-10 | 2002-07-16 | Eastman Kodak Company | Photographic element |
| US20050089806A1 (en) * | 2003-10-24 | 2005-04-28 | Zengerle Paul L. | Method of preparation of direct dispersions of photographically useful chemicals |
| US7338756B2 (en) | 2003-10-24 | 2008-03-04 | Eastman Kodak Company | Method of preparation of direct dispersions of photographically useful chemicals |
Also Published As
| Publication number | Publication date |
|---|---|
| GB791353A (en) | 1958-02-26 |
| FR1151479A (fr) | 1958-01-30 |
| BE543744A (OSRAM) | |
| US2801170A (en) | 1957-07-30 |
| DE963295C (de) | 1957-05-02 |
| GB798512A (en) | 1958-07-23 |
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