GB1484479A - Adding spectral sensitizers to photographic light-sensitive emulsions - Google Patents

Adding spectral sensitizers to photographic light-sensitive emulsions

Info

Publication number
GB1484479A
GB1484479A GB4963074A GB4963074A GB1484479A GB 1484479 A GB1484479 A GB 1484479A GB 4963074 A GB4963074 A GB 4963074A GB 4963074 A GB4963074 A GB 4963074A GB 1484479 A GB1484479 A GB 1484479A
Authority
GB
United Kingdom
Prior art keywords
dyes
emulsion
nov
light
sensitive
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
GB4963074A
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of GB1484479A publication Critical patent/GB1484479A/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
    • G03C1/12—Methine and polymethine 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)

Abstract

1484479 Adding sensitizing dyes to photographic emulsions FUJI PHOTO FILM CO Ltd 15 Nov 1974 [15 Nov 1973] 49630/74 Heading G2C A spectrally sensitizing dye is dissolved in an acid which contains less than 10% by weight of water and is selected from methanesulphonic, ethanesulphonic, 3-propanesulphonic, trifluoromethanesulphonic, and isethionic acid; the dye solution is dispersed in an aqueous solution of a hydrophilic colloid and the dispersion added to a light-sensitive photographic emulsion. The dispersion may be neutralized prior to its addition to the emulsion using sodium or potassium hydroxide or carbonate, sodium bicarbonate, di- or tri-ethylamine or morpholine. The light-sensitive emulsion contains silver halide, titanium or zinc oxide or calcium sulphide. The dyes are cyanines, merocyanines, hemicyanines and styryl dyes.
GB4963074A 1973-11-15 1974-11-15 Adding spectral sensitizers to photographic light-sensitive emulsions Expired GB1484479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12875473A JPS5722091B2 (en) 1973-11-15 1973-11-15

Publications (1)

Publication Number Publication Date
GB1484479A true GB1484479A (en) 1977-09-01

Family

ID=14992626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4963074A Expired GB1484479A (en) 1973-11-15 1974-11-15 Adding spectral sensitizers to photographic light-sensitive emulsions

Country Status (3)

Country Link
JP (1) JPS5722091B2 (en)
DE (1) DE2454300A1 (en)
GB (1) GB1484479A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124795A2 (en) 1983-04-11 1984-11-14 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion
US5403705A (en) * 1992-10-13 1995-04-04 Konica Corporation Silver halide photographic emulsion and light-sensitive silver halide photographic material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2877579B2 (en) * 1991-08-26 1999-03-31 コニカ株式会社 Silver halide color photographic materials
US5418124A (en) 1992-03-19 1995-05-23 Fuji Photo Film Co. Ltd. Silver halide photographic emulsion and a photographic light-sensitive material
ATE483182T1 (en) 2001-04-17 2010-10-15 Fujifilm Corp PHOTOGRAPHIC SILVER HALIDE MATERIAL CONTAINING A METHINE DYE
WO2005073804A1 (en) 2004-01-30 2005-08-11 Fuji Photo Film Co., Ltd. Silver halide color photographic light-sensitive material and color image-forming method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124795A2 (en) 1983-04-11 1984-11-14 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion
US5403705A (en) * 1992-10-13 1995-04-04 Konica Corporation Silver halide photographic emulsion and light-sensitive silver halide photographic material

Also Published As

Publication number Publication date
JPS5722091B2 (en) 1982-05-11
JPS5080826A (en) 1975-07-01
DE2454300A1 (en) 1975-05-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee