ES356582A1 - Improvements in the photographic characteristics of silver halide emulsions - Google Patents

Improvements in the photographic characteristics of silver halide emulsions

Info

Publication number
ES356582A1
ES356582A1 ES356582A ES356582A ES356582A1 ES 356582 A1 ES356582 A1 ES 356582A1 ES 356582 A ES356582 A ES 356582A ES 356582 A ES356582 A ES 356582A ES 356582 A1 ES356582 A1 ES 356582A1
Authority
ES
Spain
Prior art keywords
silver halide
halide emulsions
photographic characteristics
development
pyrrolz
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
ES356582A
Other languages
Spanish (es)
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.)
Pfizer Italia SRL
Original Assignee
Carlo Erba SpA
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 Carlo Erba SpA filed Critical Carlo Erba SpA
Publication of ES356582A1 publication Critical patent/ES356582A1/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18—Magnoliophyta (angiosperms)
    • A61K36/185—Magnoliopsida (dicotyledons)
    • A61K36/81—Solanaceae (Potato family), e.g. tobacco, nightshade, tomato, belladonna, capsicum or jimsonweed
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0005—Oxygen-containing hetero ring
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mycology (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Medical Informatics (AREA)
  • Botany (AREA)
  • Alternative & Traditional Medicine (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

Fog is prevented in developed silver halide emulsions by development thereof in the presence of a compound of formula:- wherein R is a fur-z-yl,thiophen-z-yl or pyrrolz-yl group. The antifoggant may be present in the emulsion or developer baths for colour or black and white development.
ES356582A 1963-09-16 1968-07-27 Improvements in the photographic characteristics of silver halide emulsions Expired ES356582A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3901663 1963-09-16
IT1892367 1967-07-28

Publications (1)

Publication Number Publication Date
ES356582A1 true ES356582A1 (en) 1970-02-01

Family

ID=26327018

Family Applications (1)

Application Number Title Priority Date Filing Date
ES356582A Expired ES356582A1 (en) 1963-09-16 1968-07-27 Improvements in the photographic characteristics of silver halide emulsions

Country Status (5)

Country Link
BE (1) BE718646A (en)
DE (1) DE1447796A1 (en)
ES (1) ES356582A1 (en)
GB (1) GB1033698A (en)
NL (1) NL6810565A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3020163A1 (en) * 1980-05-28 1981-12-03 Agfa-Gevaert Ag, 5090 Leverkusen PHOTOGRAPHIC RECORDING MATERIAL AND THE USE THEREOF FOR PRODUCING IMAGES
US5506092A (en) * 1993-12-06 1996-04-09 Konica Corporation Method of processing black and white silver halide photographic compositions with a developer containing an anti sludgant
US7129031B2 (en) 2003-06-19 2006-10-31 Agfa-Gevaert Radiographic silver halide photographic material having a good developing speed, an excellent image tone and low residual color after processing

Also Published As

Publication number Publication date
NL6810565A (en) 1969-01-30
BE718646A (en) 1969-01-27
GB1033698A (en) 1966-06-22
DE1447796A1 (en) 1969-02-13

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