GB1361089A - Silver halide photographic emulsion - Google Patents

Silver halide photographic emulsion

Info

Publication number
GB1361089A
GB1361089A GB4653171A GB4653171A GB1361089A GB 1361089 A GB1361089 A GB 1361089A GB 4653171 A GB4653171 A GB 4653171A GB 4653171 A GB4653171 A GB 4653171A GB 1361089 A GB1361089 A GB 1361089A
Authority
GB
United Kingdom
Prior art keywords
silver halide
photographic emulsion
halide photographic
micron
oct
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
GB4653171A
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 GB1361089A publication Critical patent/GB1361089A/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

1361089 Sensitized silver halide emulsions FUJI PHOTO FILM CO Ltd 6 Oct 1971 [7 Oct 1970] 46531/71 Heading G2C A silver halide photographic emulsion comprising grains at least 95% by number of which are not greater than 0À2 micron in diameter or whose mean grain diameter is not more than 0À18 micron, and at least one hemicyanine dye having one of the general formulae (I) or (II) in which Z completes an optionally substituted heterocyclic nucleus comprising five or six atoms in the heterocyclic ring containing the nitrogen atom shown, R represents optionally substituted alkyl (1-5C), A is H, B is aryl e.g. phenyl or tolyl or A and B together form a ring, L is methine, R and the L connected to the heterocyclic ring optionally being connected by a polymethylene chain X is an anion, m is 1, 2 or 3 and n and p are 0 or 1.
GB4653171A 1970-10-07 1971-10-06 Silver halide photographic emulsion Expired GB1361089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45088133A JPS4917525B1 (en) 1970-10-07 1970-10-07

Publications (1)

Publication Number Publication Date
GB1361089A true GB1361089A (en) 1974-07-24

Family

ID=13934411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4653171A Expired GB1361089A (en) 1970-10-07 1971-10-06 Silver halide photographic emulsion

Country Status (5)

Country Link
US (1) US3788859A (en)
JP (1) JPS4917525B1 (en)
DE (1) DE2150138A1 (en)
FR (1) FR2111005A5 (en)
GB (1) GB1361089A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052417B2 (en) * 1980-01-23 1985-11-19 富士写真フイルム株式会社 photographic material
JPS59165049A (en) * 1983-03-11 1984-09-18 Fuji Photo Film Co Ltd Silver halide photosensitive material
EP0512483A1 (en) * 1991-05-09 1992-11-11 Eastman Kodak Company Hemicyanine sensitizing dyes for photographic materials
US5981162A (en) * 1997-05-08 1999-11-09 Fuji Photo Film Co., Ltd. Silver halide photographic material

Also Published As

Publication number Publication date
FR2111005A5 (en) 1972-06-02
JPS4917525B1 (en) 1974-05-01
DE2150138A1 (en) 1972-05-10
US3788859A (en) 1974-01-29

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Legal Events

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