GB1413645A - Spectrally sensitized silver halide photographic emulsions - Google Patents

Spectrally sensitized silver halide photographic emulsions

Info

Publication number
GB1413645A
GB1413645A GB919374A GB919374A GB1413645A GB 1413645 A GB1413645 A GB 1413645A GB 919374 A GB919374 A GB 919374A GB 919374 A GB919374 A GB 919374A GB 1413645 A GB1413645 A GB 1413645A
Authority
GB
United Kingdom
Prior art keywords
substituted
silver halide
dye
combination
nucleus
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
GB919374A
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 GB1413645A publication Critical patent/GB1413645A/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
    • G03C1/28—Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed

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

1413645 Supersensitized photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 28 Feb 1974 [28 Feb 1973] 9193/74 Heading G2C Photographic silver halide emulsions contain in supersensitizing combination at least one dye of the formula:- where Z<SP>1</SP> completes a benzothiazole, benzoselenazole, #-naphthothiazole or #-naphthoselenazole nucleus, which may be substituted, Z<SP>2</SP> completes a benzoselenazole nucleus which may be substituted, A is hydrogen or alkyl, R<SP>1</SP> and R<SP>2</SP> are each substituted or unsubstituted alkyl or allyl, at least one of R<SP>1</SP> and R<SP>2</SP> carrying a hydroxy, carboxy or sulpho substituent, X<SP>1</SP> is an anion and m is 0 or 1, m being 0 when the dye forms an intramolecular salt, together with at least one dye of the formula:- where Z<SP>3</SP> and Z<SP>4</SP> each complete a halogensubstituted benzimidazole nucleus, R<SP>3</SP> and R<SP>4</SP> are each substituted or unsubstituted alkyl or allyl, at least one of R<SP>3</SP> and R<SP>4</SP> carrying a hydroxy, carboxy or sulpho substituent, X<SP>2</SP> is an anion and n is 0 or 1, n being 0 when the dye forms an intramolecular salt. Dyes of the following formulae may also be used together with the supersensitising combination:- The combination of dyes is especially useful when used in conjunction with cyan colour couplers which tend to reduce spectral sensitization in colour materials.
GB919374A 1973-02-28 1974-02-28 Spectrally sensitized silver halide photographic emulsions Expired GB1413645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48023987A JPS49114419A (en) 1973-02-28 1973-02-28

Publications (1)

Publication Number Publication Date
GB1413645A true GB1413645A (en) 1975-11-12

Family

ID=12125917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919374A Expired GB1413645A (en) 1973-02-28 1974-02-28 Spectrally sensitized silver halide photographic emulsions

Country Status (5)

Country Link
US (1) US3873324A (en)
JP (1) JPS49114419A (en)
DE (1) DE2409620A1 (en)
FR (1) FR2219443A1 (en)
GB (1) GB1413645A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722094B2 (en) * 1974-12-24 1982-05-11
JPS51120223A (en) * 1975-04-14 1976-10-21 Konishiroku Photo Ind Co Ltd Halogenized silver color photosensitive materials
JPS51135528A (en) * 1975-05-19 1976-11-24 Fuji Photo Film Co Ltd Spectrally sensitized silver halide photographic emulsions
US4179296A (en) * 1975-12-29 1979-12-18 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion
US4510235A (en) * 1983-04-28 1985-04-09 Fuji Photo Film Co., Ltd. Silver halide photographic emulsions
JPH03107139A (en) * 1989-09-20 1991-05-07 Konica Corp Color photographic sensitive material having excellent hue reproducibility
US7241564B2 (en) 2004-08-02 2007-07-10 Fujifilm Corporation Silver halide holographic sensitive material and system for taking holographic images by using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1813001A1 (en) * 1967-12-07 1969-07-17 Konishiroku Photo Ind Light-sensitive, photographic silver halide emulsion for microfilms
BE756607R (en) * 1969-09-29 1971-03-01 Eastman Kodak Co
BE758115A (en) * 1969-10-29 1971-04-01 Fuji Photo Film Co Ltd SILVER HALIDE PHOTOGRAPHIC EMULSION SUBJECT TO SPECTRAL SENSITIZATION
US3799783A (en) * 1972-01-03 1974-03-26 Polaroid Corp Silver halide emulsion containing sensitizing dye combination

Also Published As

Publication number Publication date
FR2219443A1 (en) 1974-09-20
DE2409620A1 (en) 1974-09-05
JPS49114419A (en) 1974-10-31
US3873324A (en) 1975-03-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee