GB798512A - Method of making photographic packet emulsions - Google Patents

Method of making photographic packet emulsions

Info

Publication number
GB798512A
GB798512A GB34887/55A GB3488755A GB798512A GB 798512 A GB798512 A GB 798512A GB 34887/55 A GB34887/55 A GB 34887/55A GB 3488755 A GB3488755 A GB 3488755A GB 798512 A GB798512 A GB 798512A
Authority
GB
United Kingdom
Prior art keywords
emulsion
dispersion
coupler
packet
gelatin
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
Application number
GB34887/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Ltd
Original Assignee
Kodak Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB798512A publication Critical patent/GB798512A/en
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Pyridine Compounds (AREA)

Abstract

798,512. Colour photographic materials. KODAK, Ltd. Dec. 6, 1955 [Dec. 20, 1954], No. 34887/55. Class 98(2) A light-sensitive photographic packet emulsion is prepared by dissolving a colour coupler in a low boiling water-insoluble solvent, dispersing the solution in gelatin, mixing the resulting dispersion with a gelatino silver halide emulsion, forming in a continuous phase of film-forming binder (e.g. gelatin) capable of colloidal solution in water a dispersion of packets of the emulsion containing colour coupler and mixing the resulting packet emulsion with an oil former as defined in Specification 541,589. The ratio of coupler to oil former may be more than 1:1. The low-boiling solvent may be evaporated from the dispersion before mixing with the emulsion. Each packet may contain a styrene interpolymer as defined in Specification 711,488, and the dispersion of the packets in the film-forming binder may be assisted by a water-soluble polymer containing saltforming acid groups or a water-soluble salt thereof or by a gelatin derivative. The low-boiling solvent may be nitromethane; nitroethane; methyl, ethyl, or propyl acetate; chloroform; or ethyl or butyl formate, and the high-boiling solvent may be di-nbutyl phthalate, triphenyl or tricresyl phosphate, or N-n-butylacetanilide. In Example 1, an ethyl acetate solution of 2- [a-(2:4-di-tert.-amylphenoxy) - n - butrylamino]-4:6-dichloro - 5 - methylphenol is added to a gelatin solution containing "Alkanol B", and after setting, noodling, drying, and redispersing in water, the coupler dispersion is added to a red-sensitive gelatino silver chloride emulsion. Aqueous solutions of the sodium salt of methacrylic acid-methyl - a - methacrylate copolymer, the ammonium salt of styrenemaleamic acid polymer, calcium acetate, and gelatin are successively added to and mixed with the emulsion and finally a methanol solution of di-n-butyl phthalate is added to and mixed with the emulsion. In Example 2, a similar packet dispersion is made using a green-sensitive emulsion and as a magenta coupler 1-(2':4':6'-trichlorophenyl) - 3 - [3<SP>11</SP> - (2<SP>111</SP> : 4<SP>111</SP> - di-tert.-amylphenoxyacetamido) - benzamido] - 5 - pyrazolone, is mixed with the' packet dispersion of Example 1 containing the cyan coupler, and a dispersion of di-n-butyl phthalate, gelatin, Alkanol B, and water is added to the mixture. Various ratios of coupler to highboiling coupler solvent may be employed, and a solvent such as benzyl alcohol may be present in the developer. The packet emulsion may form a single layer or a layer of a multi-layer material. Specifications 545,448, 649,545, 649,660, 680,488, 739,913, 791,219 and 798,513 also are referred to.
GB34887/55A 1954-12-20 1955-12-06 Method of making photographic packet emulsions Expired GB798512A (en)

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
GB798512A true GB798512A (en) 1958-07-23

Family

ID=27045207

Family Applications (2)

Application Number Title Priority Date Filing Date
GB34887/55A Expired GB798512A (en) 1954-12-20 1955-12-06 Method of making photographic packet emulsions
GB35055/55A Expired GB791353A (en) 1954-12-20 1955-12-07 Method of making dispersions of colour couplers for use in light-sensitive silver salt emulsions

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB35055/55A Expired GB791353A (en) 1954-12-20 1955-12-07 Method of making dispersions of colour couplers for use in light-sensitive silver salt emulsions

Country Status (5)

Country Link
US (2) US2787544A (en)
BE (1) BE543744A (en)
DE (1) DE963295C (en)
FR (1) FR1151479A (en)
GB (2) GB798512A (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
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
BE590403A (en) * 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 (en) * 1980-08-20 1982-04-01 Agfa-Gevaert Ag, 5090 Leverkusen METHOD FOR PRODUCING DISPERSIONS AND PHOTOGRAPHIC MATERIALS
JPS59188641A (en) 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd Silver halide photographic emulsion
US4725529A (en) 1985-04-30 1988-02-16 Konishiroku Photo Industry Co., Ltd. Developing inhibitor arrangment in light-sensitive silver halide color photographic materials
CA1303412C (en) 1985-05-31 1992-06-16 Shigeharu Koboshi Method for forming direct positive color image
JPH0711695B2 (en) 1985-09-25 1995-02-08 富士写真フイルム株式会社 Processing method of silver halide color light-sensitive material for photography
AU591540B2 (en) 1985-12-28 1989-12-07 Konishiroku Photo Industry Co., Ltd. Method of processing light-sensitive silver halide color photographic material
JPH0833628B2 (en) 1987-12-15 1996-03-29 富士写真フイルム株式会社 Silver halide color photographic light-sensitive material
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
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
DE4433637A1 (en) 1994-09-21 1996-03-28 Agfa Gevaert Ag Color photographic silver halide material
US5585230A (en) * 1995-03-23 1996-12-17 Eastman Kodak Company Cyan coupler dispersion with improved stability
US5770352A (en) * 1996-04-18 1998-06-23 Eastman Kodak Company High activity photographic dispersions with ultra low levels of permanent solvent
US5726003A (en) * 1996-08-15 1998-03-10 Eastman Kodak Company Cyan coupler dispersion with increased activity
US5830632A (en) * 1996-10-31 1998-11-03 Eastman Kodak Company Photographic element containing dispersions of high dye-yield couplers having improved photographic 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
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
US7338756B2 (en) * 2003-10-24 2008-03-04 Eastman Kodak Company Method of preparation of direct dispersions of photographically useful chemicals
US7223529B1 (en) 2006-05-05 2007-05-29 Eastman Kodak Company Silver halide light-sensitive element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL63641C (en) * 1939-01-23
BE470936A (en) * 1940-02-24
US2478400A (en) * 1945-08-17 1949-08-09 Eastman Kodak Co Silver halide photographic emulsion with developer and color coupler dispersed therein
US2698794A (en) * 1950-04-15 1955-01-04 Eastman Kodak Co Mixed packet photographic emulsions

Also Published As

Publication number Publication date
US2787544A (en) 1957-04-02
BE543744A (en)
DE963295C (en) 1957-05-02
FR1151479A (en) 1958-01-30
GB791353A (en) 1958-02-26
US2801170A (en) 1957-07-30

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