GB1064193A - Process for hypersensitising photographic silver halide emulsions - Google Patents

Process for hypersensitising photographic silver halide emulsions

Info

Publication number
GB1064193A
GB1064193A GB2392664A GB2392664A GB1064193A GB 1064193 A GB1064193 A GB 1064193A GB 2392664 A GB2392664 A GB 2392664A GB 2392664 A GB2392664 A GB 2392664A GB 1064193 A GB1064193 A GB 1064193A
Authority
GB
United Kingdom
Prior art keywords
silver halide
groups
halide emulsions
formula
hypersensitising
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
GB2392664A
Inventor
Johannes Brunken
Ernst-Joachim Poppe
Wolfgang Schindler
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.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen VEB
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 Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Priority to GB2392664A priority Critical patent/GB1064193A/en
Publication of GB1064193A publication Critical patent/GB1064193A/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
    • 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

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,064,193. Hypersensitized silver halide emulsions. FILMFABRIK WOLFEN VEB. June 9, 1964, No.23926/64. Heading G2C. Hypersensitized silver halide emulsions contain (a) a dye of formula wherein R1, R2 and R3 are alkyl, aralkyl, hydroxyalkyl, carboxyalkyl, sulphoalkyl and sulphatoalkyl groups; R4 is an alkyl, aryl, aralkyl or cycloalkyl group; L is an optionally substituted methine group; Z1 and Z2 complete a 5- or 6-membered heterocyclic ring; X is an anion; n1, n2 are 0 or 1; m1 is 1 or 2; and m2 is 0-3; (b) an aromatic amine of formula R5-NH-A-NH-R6 wherein R5 and R6 are acyl, carbamyl or s-triazinyl groups and A is an aromatic radical optionally substituted by sulpho groups, and (c) a reducing agent of formula in which the OH groups may be esterified, Z3 completes a benzene y-lactone, tetronamide, pyronimide, furane or pyrrole ring; L is a methine group; and n3 is 0 or 1, or a complex thereof.
GB2392664A 1964-06-09 1964-06-09 Process for hypersensitising photographic silver halide emulsions Expired GB1064193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2392664A GB1064193A (en) 1964-06-09 1964-06-09 Process for hypersensitising photographic silver halide emulsions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2392664A GB1064193A (en) 1964-06-09 1964-06-09 Process for hypersensitising photographic silver halide emulsions

Publications (1)

Publication Number Publication Date
GB1064193A true GB1064193A (en) 1967-04-05

Family

ID=10203545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2392664A Expired GB1064193A (en) 1964-06-09 1964-06-09 Process for hypersensitising photographic silver halide emulsions

Country Status (1)

Country Link
GB (1) GB1064193A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786690A2 (en) 1996-01-26 1997-07-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
EP0786691A1 (en) 1996-01-26 1997-07-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
EP0786692A1 (en) 1996-01-26 1997-07-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US5994051A (en) * 1997-07-25 1999-11-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US6010841A (en) * 1996-01-26 2000-01-04 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US6054260A (en) * 1997-07-25 2000-04-25 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US6153371A (en) * 1997-07-25 2000-11-28 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786690A2 (en) 1996-01-26 1997-07-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
EP0786691A1 (en) 1996-01-26 1997-07-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
EP0786692A1 (en) 1996-01-26 1997-07-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US5747235A (en) * 1996-01-26 1998-05-05 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US5747236A (en) * 1996-01-26 1998-05-05 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US6010841A (en) * 1996-01-26 2000-01-04 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US5994051A (en) * 1997-07-25 1999-11-30 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US6054260A (en) * 1997-07-25 2000-04-25 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity
US6153371A (en) * 1997-07-25 2000-11-28 Eastman Kodak Company Silver halide light sensitive emulsion layer having enhanced photographic sensitivity

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