GB1271329A - Optically sensitizing photographic emulsions - Google Patents

Optically sensitizing photographic emulsions

Info

Publication number
GB1271329A
GB1271329A GB61761/69A GB6176169A GB1271329A GB 1271329 A GB1271329 A GB 1271329A GB 61761/69 A GB61761/69 A GB 61761/69A GB 6176169 A GB6176169 A GB 6176169A GB 1271329 A GB1271329 A GB 1271329A
Authority
GB
United Kingdom
Prior art keywords
carbons
dispersion
emulsion
dec
dye
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
GB61761/69A
Inventor
Simone Leonie Marie Elis Boyer
Roger Caridi
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1271329A publication Critical patent/GB1271329A/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
    • 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
    • G03C1/10—Organic substances
    • G03C1/102—Organic substances dyes other than methine dyes

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)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

1,271,329. Incorporating photographic sensitizing dyes into emulsions. EASTMAN KODAK CO. Dec. 18, 1969 [Dec. 24, 1968], No. 61761/69. Heading G2C. Photographic spectral sensitizing dyes having a solubility in water of less than 1 per cent by weight at 20‹C. are incorporated into a silver halide emulsion by forming a dispersion of the dye in a water-soluble organic liquid in which the dye is not soluble having the formula where R is H or alkyl of up to 4 carbons, R<SP>1</SP> is H or methyl, R<SP>2</SP> is H, alkyl or hydroxyalkyl of up to 3 carbons or acetoxymethyl, R<SP>3</SP> is a divalent alkylene group of up to 4 carbons and the sum of carbons in R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is up to 4, and mixing the dispersion either with the emulsion directly or with a hydrophilic colloid which is subsequently mixed with the emulsion. The colloid-dispersion mixture may be dried to form a dry composition for storage and subsequent incorporation into a silver halide emulsion. Liquids specified include glycerol, monoacetin and various glycols and glycol ethers.
GB61761/69A 1968-12-24 1969-12-18 Optically sensitizing photographic emulsions Expired GB1271329A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR180194 1968-12-24

Publications (1)

Publication Number Publication Date
GB1271329A true GB1271329A (en) 1972-04-19

Family

ID=8658924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB61761/69A Expired GB1271329A (en) 1968-12-24 1969-12-18 Optically sensitizing photographic emulsions

Country Status (7)

Country Link
US (1) US3676147A (en)
BE (1) BE742612A (en)
BR (1) BR6915565D0 (en)
CA (1) CA942565A (en)
DE (1) DE1964169A1 (en)
FR (1) FR1602224A (en)
GB (1) GB1271329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774687A1 (en) 1995-10-30 1997-05-21 Konica Corporation Solid processing composition and method for processing silver halide photographic light-sensitive material

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769011A (en) * 1972-01-26 1973-10-30 Eastman Kodak Co Photoconductive compositions and elements containing methine dye in j-aggregate state
US4004928A (en) * 1974-08-28 1977-01-25 Mitsubishi Paper Mills, Ltd. Color photographic material
US4006025A (en) * 1975-06-06 1977-02-01 Polaroid Corporation Process for dispersing sensitizing dyes
US4193801A (en) * 1976-07-29 1980-03-18 Ciba-Geigy Aktiengesellschaft Process for producing photographic silver halide material
GB1579481A (en) * 1977-02-18 1980-11-19 Ciba Geigy Ag Preparation of photographic material
GB1579625A (en) * 1977-02-18 1980-11-19 Ciba Geigy Ag Preparation of photographic material
JPS59188641A (en) 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd Silver halide photographic emulsion
US5994041A (en) * 1985-04-06 1999-11-30 Eastman Kodak Company Process for buffering concentrated aqueous slurries
EP0521632A1 (en) * 1991-06-26 1993-01-07 Konica Corporation Silver halide photographic materials
JP2877579B2 (en) * 1991-08-26 1999-03-31 コニカ株式会社 Silver halide color photographic materials
US5401623A (en) * 1992-10-05 1995-03-28 Eastman Kodak Company Reactivity control in microcrystalline coupler dispersions
US5360695A (en) * 1993-01-26 1994-11-01 Eastman Kodak Company Aqueous developable dye diffusion transfer elements containing solid particle thermal solvent dispersions
EP0614114A1 (en) * 1993-03-02 1994-09-07 Konica Corporation Silver halide photographic light-sensitive material
US5512414A (en) * 1993-09-23 1996-04-30 Eastman Kodak Company Solid particle coupler dispersions for color diffusion transfer elements
US5460937A (en) * 1993-10-20 1995-10-24 Eastman Kodak Company Process for incorporating a hydrophobic compound into an aqueous medium
US5609998A (en) * 1994-12-29 1997-03-11 Eastman Kodak Company Process for dispersing concentrated aqueous slurries
US5582957A (en) * 1995-03-28 1996-12-10 Eastman Kodak Company Resuspension optimization for photographic nanosuspensions
US5723255A (en) * 1995-06-07 1998-03-03 Eastman Kodak Company Nanoparticulate thermal solvents
US5709983A (en) * 1995-08-31 1998-01-20 Eastman Kodak Company Nonaqueous solid particle dye dispersions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0774687A1 (en) 1995-10-30 1997-05-21 Konica Corporation Solid processing composition and method for processing silver halide photographic light-sensitive material

Also Published As

Publication number Publication date
BE742612A (en) 1970-05-14
US3676147A (en) 1972-07-11
BR6915565D0 (en) 1973-01-18
FR1602224A (en) 1970-10-26
CA942565A (en) 1974-02-26
DE1964169A1 (en) 1970-07-09

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