GB1407436A - Process for preparing fine-grain silver halide emulsions - Google Patents

Process for preparing fine-grain silver halide emulsions

Info

Publication number
GB1407436A
GB1407436A GB5262872A GB5262872A GB1407436A GB 1407436 A GB1407436 A GB 1407436A GB 5262872 A GB5262872 A GB 5262872A GB 5262872 A GB5262872 A GB 5262872A GB 1407436 A GB1407436 A GB 1407436A
Authority
GB
United Kingdom
Prior art keywords
silver halide
halide emulsions
grain silver
preparing fine
emulsions
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
GB5262872A
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.)
Agfa Gevaert NV
Agfa Gevaert AG
Original Assignee
Agfa Gevaert NV
Agfa Gevaert AG
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 Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Publication of GB1407436A publication Critical patent/GB1407436A/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
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium
    • 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
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising

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)
  • Colloid Chemistry (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

1407436 Photographic silver halide emulsions AGFA-GEVAERT 14 Nov 1972 [9 Dec 1971] 52628/72 Heading G2C Photographic silver halide Lippmann emulsions of grain size less than 100nm are made by precipitating the silver halide in an aqueous hydrophilic colloid medium in the presence of a compound of the formula:- and/or the isomeric compound of the formula:-
GB5262872A 1971-12-09 1972-11-14 Process for preparing fine-grain silver halide emulsions Expired GB1407436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2161044A DE2161044A1 (en) 1971-12-09 1971-12-09 PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC FINE-GRAIN SILVER HALOGENIDE EMULSIONS

Publications (1)

Publication Number Publication Date
GB1407436A true GB1407436A (en) 1975-09-24

Family

ID=5827476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5262872A Expired GB1407436A (en) 1971-12-09 1972-11-14 Process for preparing fine-grain silver halide emulsions

Country Status (4)

Country Link
US (1) US3847617A (en)
BE (1) BE792093A (en)
DE (1) DE2161044A1 (en)
GB (1) GB1407436A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1470369A (en) * 1973-06-22 1977-04-14 Agfa Gevaert Photographic complex diffusion transfer process
DE3019733A1 (en) * 1980-05-23 1981-12-03 Agfa-Gevaert Ag, 5090 Leverkusen METHOD FOR PRODUCING SILVER HALOGENID EMULSIONS, PHOTOGRAPHIC MATERIALS AND METHOD FOR PRODUCING PHOTOGRAPHIC IMAGES
US4814263A (en) * 1987-07-21 1989-03-21 Minnesota Mining And Manufacturing Company Direct-positive silver halide emulsion
DE19933258A1 (en) * 1999-07-15 2001-01-18 Agfa Gevaert Ag Preparation of silver halide emulsions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453087A (en) * 1946-11-07 1948-11-02 Gen Aniline & Film Corp Photographic developers containing tetrazolyl disulfides as antifogging agents
BE758103A (en) * 1969-10-29 1971-04-28 Agfa Gevaert Nv FINE-GRAINY PHOTOGRAPHIC SILVER HALOGENIDE EMULSIONS
BE758242A (en) * 1969-11-06 1971-04-30 Agfa Gevaert Nv PHOTOGRAPHIC FINE GRAINY SILVER HALOGENIDE EMULSIONS

Also Published As

Publication number Publication date
US3847617A (en) 1974-11-12
DE2161044A1 (en) 1973-06-14
BE792093A (en) 1973-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee