GB1300880A - Spectrally sensitized silver halide photographic emulsions - Google Patents

Spectrally sensitized silver halide photographic emulsions

Info

Publication number
GB1300880A
GB1300880A GB09265/71A GB1926571A GB1300880A GB 1300880 A GB1300880 A GB 1300880A GB 09265/71 A GB09265/71 A GB 09265/71A GB 1926571 A GB1926571 A GB 1926571A GB 1300880 A GB1300880 A GB 1300880A
Authority
GB
United Kingdom
Prior art keywords
silver halide
halide photographic
carboxyalkyl group
alkyl
spectrally sensitized
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
GB09265/71A
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 GB1300880A publication Critical patent/GB1300880A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/06—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
    • 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

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (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

1300880 Supersensitized photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 7 June 1971 [5 June 1970] 19265/71 Heading G2C A light-sensitive silver halide photographic emulsion contains a sensitizing dye having the following formula wherein each of R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> is alkyl or substituted alkyl, at least one of R<SP>1</SP> -R<SP>4</SP> being a carboxyalkyl group, V and W are halogen, n is 1 or 2, n<SP>1</SP> is 0, 1 or 2, X is an anion and m is 0 or 1, an intramolecular salt being formed when m=0, together with a sensitizing dye having the following formula wherein each of R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> is alkyl or substituted alkyl, at least one of R<SP>5</SP>-R<SP>7</SP> being a carboxyalkyl group, y is halogen, n is 1 or 2, x is an anion and m is 0 or 1, an intramolecular salt being formed when m = 0 . Examples of the carboxyalkyl group are carboxymethyl, #- carboxyethyl, γ-carboxypropyl #-carboxybutyl and #-carboxypentyl. The dyes sensitize the emulsion for flash exposure (1/100, 000th to 1/1, 000, 000th of a second) to the green region of the spectrum.
GB09265/71A 1970-06-05 1971-06-07 Spectrally sensitized silver halide photographic emulsions Expired GB1300880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45048546A JPS4912656B1 (en) 1970-06-05 1970-06-05

Publications (1)

Publication Number Publication Date
GB1300880A true GB1300880A (en) 1972-12-20

Family

ID=12806355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09265/71A Expired GB1300880A (en) 1970-06-05 1971-06-07 Spectrally sensitized silver halide photographic emulsions

Country Status (7)

Country Link
US (1) US3769025A (en)
JP (1) JPS4912656B1 (en)
BE (1) BE768187A (en)
CA (1) CA962881A (en)
DE (1) DE2128296C3 (en)
FR (1) FR2096029A5 (en)
GB (1) GB1300880A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947275A (en) * 1970-05-01 1976-03-30 Fuji Photo Film Co., Ltd. Spectrally sensitized silver halide photographic emulsion
DE3402480C2 (en) * 1983-01-25 1995-03-23 Fuji Photo Film Co Ltd Color photographic silver halide emulsion and color photographic light-sensitive material containing this emulsion
JPS59142541A (en) * 1983-02-02 1984-08-15 Fuji Photo Film Co Ltd Photographic silver halide emulsion
JPS59188641A (en) * 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd Silver halide photographic emulsion
US5135845A (en) * 1990-04-10 1992-08-04 Eastman Kodak Company Sensitizing dye for photographic materials
JPH09311399A (en) * 1996-05-24 1997-12-02 Konica Corp Silver halide photographic sensitive material and method for photographing by using same and processing same
JP2007041376A (en) 2005-08-04 2007-02-15 Fujifilm Holdings Corp Silver halide photosensitive material and package including the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973264A (en) * 1957-03-06 1961-02-28 Gevaert Photo Prod Nv Sensitized photographic emulsions
BE637795A (en) * 1962-09-27
US3364031A (en) * 1963-06-24 1968-01-16 Eastman Kodak Co Supersensitized photographic silver halide emulsions

Also Published As

Publication number Publication date
FR2096029A5 (en) 1972-02-11
DE2128296C3 (en) 1975-06-19
BE768187A (en) 1971-11-03
CA962881A (en) 1975-02-18
JPS4912656B1 (en) 1974-03-26
DE2128296A1 (en) 1971-12-09
US3769025A (en) 1973-10-30
DE2128296B2 (en) 1974-10-31

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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