GB1309415A - Silver halide photographic emulsion - Google Patents

Silver halide photographic emulsion

Info

Publication number
GB1309415A
GB1309415A GB3574270A GB3574270A GB1309415A GB 1309415 A GB1309415 A GB 1309415A GB 3574270 A GB3574270 A GB 3574270A GB 3574270 A GB3574270 A GB 3574270A GB 1309415 A GB1309415 A GB 1309415A
Authority
GB
United Kingdom
Prior art keywords
silver halide
sulphobutyl
alkyl
halide photographic
photographic emulsion
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
GB3574270A
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 GB1309415A publication Critical patent/GB1309415A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1309415 Supersensitized photographic silver halide emulsions FUJI PHOTO FILM CO Ltd 23 July 1970 [23 July 1969] 35742/70 Heading G2C Photographic silver halide emulsions are supersensitized with at least one dye of the formula: - in which Z 1 and Z 2 are each S or Se; R 3 is H or alkyl of 1-4 carbons; W is H, halogen, alkyl of 1-4 carbons, alkoxy, OH or aryl; R 1 and R 2 are each ethyl, n-propyl, allyl, γ-sulphopropyl, γ-sulphobutyl or #-sulphobutyl, at least one of R 1 and R 2 being γ-sulphopropyl, γ-sulphobutyl or #-sulphobutyl when R 3 is alkyl; X 1 <SP>#</SP> is an anion and n is 0 or 1; in supersensitizing combination with at least one dye of the formula:- in which Z 3 and Z 4 are each S or Se; R 4 and R 5 are each alkyl of 1-4C, allyl, sulphoalkyl or carboxyalkyl; X 2 <SP>#</SP> is an anion and n is 0 or 1. The supersensitizing combination gives a high red sensitivity.
GB3574270A 1969-07-23 1970-07-23 Silver halide photographic emulsion Expired GB1309415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44058179A JPS4910694B1 (en) 1969-07-23 1969-07-23

Publications (1)

Publication Number Publication Date
GB1309415A true GB1309415A (en) 1973-03-14

Family

ID=13076761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3574270A Expired GB1309415A (en) 1969-07-23 1970-07-23 Silver halide photographic emulsion

Country Status (7)

Country Link
US (1) US3681080A (en)
JP (1) JPS4910694B1 (en)
BE (1) BE753808A (en)
CA (1) CA960502A (en)
DE (1) DE2036640B2 (en)
FR (1) FR2055460A5 (en)
GB (1) GB1309415A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4842496B1 (en) * 1970-09-10 1973-12-13
US4138551A (en) * 1975-03-18 1979-02-06 Ciba-Geigy Ag Spectral sensitization of photographic material and new spectral sensitizers
JPS54166995U (en) * 1978-05-12 1979-11-24
JPS63184100U (en) * 1987-05-19 1988-11-28
JPH0375798U (en) * 1989-11-21 1991-07-30
US5700623A (en) * 1997-01-21 1997-12-23 Eastman Kodak Company Thermally stable photographic bar code label containing an antistatic layer
US5747232A (en) * 1997-02-27 1998-05-05 Eastman Kodak Company Motion imaging film comprising a carbon black-containing backing and a process surviving conductive subbing layer

Also Published As

Publication number Publication date
DE2036640C3 (en) 1973-12-06
FR2055460A5 (en) 1971-05-07
CA960502A (en) 1975-01-07
DE2036640B2 (en) 1973-05-17
US3681080A (en) 1972-08-01
JPS4910694B1 (en) 1974-03-12
BE753808A (en) 1970-12-31
DE2036640A1 (en) 1971-02-11

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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