[go: up one dir, main page]

GB1230731A - - Google Patents

Info

Publication number
GB1230731A
GB1230731A GB1230731DA GB1230731A GB 1230731 A GB1230731 A GB 1230731A GB 1230731D A GB1230731D A GB 1230731DA GB 1230731 A GB1230731 A GB 1230731A
Authority
GB
United Kingdom
Prior art keywords
alkyl
emulsion
alkoxy
sulphoalkyl
carboxyalkyl
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
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 filed Critical
Publication of GB1230731A publication Critical patent/GB1230731A/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

1,230,731. Supersensitized photographic silver halide emulsions. KONISHIROKU PHOTO INDUSTRY CO. Ltd. June 10, 1969 [June 10, 1968], No.29462/69. Heading G2C. A photographic silver halide emulsion is supersensitized by incorporating at least one dye of Formula I and at least one dye of Formula II: - wherein each of R 1 , R 2 and R 4 is alkyl of 1-4C, hydroxyalkyl, carboxyalkyl, sulphoalkyl or alkoxyalkyl in which the alkoxy is substituted by -SO 3 H or -OH and -SO 3 H, provided that at least one of R 1 and R 2 is carboxyalkyl, sulphoalkyl or said alkoxyalkyl group; each of R 3 and R 5 is alkyl of 1-4C; V 1 is halogen, alkyl of 1-4C or alkoxy; each of V 2 , V 3 or V 4 is hydrogen, alkyl of 1-4C or alkoxy or V 2 and V 3 or V 3 and V 4 are a methylenedioxy group or a fused-on benzene ring; X is an anion; n is 2 or 3 and m is 1 or 2. The emulsion is sensitized to red and may contain a colour coupler to form a colour emulsion, or a green sensitizer may be added to form a panchromatic emulsion. The usual noble metal, sulphur, reduction or polyalkylene oxide sensitizers and stabilizers, surfactants and hardening agents may be present.
GB1230731D 1968-06-10 1969-06-10 Expired GB1230731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3944968 1968-06-10

Publications (1)

Publication Number Publication Date
GB1230731A true GB1230731A (en) 1971-05-05

Family

ID=12553322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1230731D Expired GB1230731A (en) 1968-06-10 1969-06-10

Country Status (3)

Country Link
US (1) US3660099A (en)
DE (1) DE1929037A1 (en)
GB (1) GB1230731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4828224A (en) * 1971-08-14 1973-04-14
JPS4847322A (en) * 1971-10-18 1973-07-05

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA988772A (en) * 1970-10-16 1976-05-11 Keisuke Shiba Photographic process utilizing a new silver halide light-sensitive element
US3955979A (en) * 1970-10-16 1976-05-11 Fuji Photo Film Co., Ltd. Flash exposure of supersensitized silver halide photographic light-sensitive material
GB1363301A (en) * 1971-07-12 1974-08-14 Ilford Ltd Supersensitising combination'
DE2948554A1 (en) * 1979-12-03 1981-06-04 Hoechst Ag, 6000 Frankfurt LIGHT SENSITIVE MIXTURE
JPS61114235A (en) * 1984-11-09 1986-05-31 Mitsubishi Paper Mills Ltd Silver halide photographic sensitive material
EP0472004B1 (en) * 1990-08-16 1996-06-26 Eastman Kodak Company Sensitizing dye combination for photographic materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075048A (en) * 1932-11-04 1937-03-30 Eastman Kodak Co Photographic emulsion containing supersensitized carbocyanines
US3522052A (en) * 1965-11-06 1970-07-28 Fuji Photo Film Co Ltd Photographic supersensitized silver halide emulsions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4828224A (en) * 1971-08-14 1973-04-14
JPS516536B2 (en) * 1971-08-14 1976-02-28
JPS4847322A (en) * 1971-10-18 1973-07-05
JPS5036975B2 (en) * 1971-10-18 1975-11-28

Also Published As

Publication number Publication date
DE1929037A1 (en) 1970-05-21
US3660099A (en) 1972-05-02

Similar Documents

Publication Publication Date Title
GB1151230A (en) Photographic Silver Halide Emulsions
GB1138762A (en) Photographic silver halide development
GB1128418A (en) Improvements in and relating to photographic silver halide emulsions
GB1328274A (en) Spectrally super sensitized silver halide photographic emulsions
GB1230731A (en)
GB1408398A (en) Silver halide supersensitized photographic emulsions
GB1318154A (en) Light-sensitive silver halide phtotographic material
GB1297655A (en)
GB1027053A (en) Photographic light-sensitive materials
GB1137580A (en) Improvements in or relating to photographic silver halide emulsions
GB1316831A (en) Supersensitised silver halide photographic emulsions
GB1231362A (en)
GB1066070A (en) Photographic light-sensitive materials
GB1242739A (en) Improvements in silver halide direct-positive emulsions
GB1431647A (en) Spectrally supersensitized silver halide photographic emulsion water taps
GB1309415A (en) Silver halide photographic emulsion
GB1064193A (en) Process for hypersensitising photographic silver halide emulsions
GB1258220A (en)
GB1231079A (en)
GB1363301A (en) Supersensitising combination'
GB1225703A (en)
GB1321881A (en) Optical supersensitisation of silver halide emulsions
GB1045777A (en) Photographic light-sensitive materials
GB1181020A (en) Photographic Emulsions
GB1283595A (en) Spectrally sensitized photographic silver halide emulsions

Legal Events

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