DE2406515C3 - Photographisches Material für die Herstellung von Direktpositiven - Google Patents

Photographisches Material für die Herstellung von Direktpositiven

Info

Publication number
DE2406515C3
DE2406515C3 DE2406515A DE2406515A DE2406515C3 DE 2406515 C3 DE2406515 C3 DE 2406515C3 DE 2406515 A DE2406515 A DE 2406515A DE 2406515 A DE2406515 A DE 2406515A DE 2406515 C3 DE2406515 C3 DE 2406515C3
Authority
DE
Germany
Prior art keywords
developer
pyrazolidone
direct positive
photographic
hydroquinone
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
DE2406515A
Other languages
German (de)
English (en)
Other versions
DE2406515B2 (de
DE2406515A1 (de
Inventor
Wolfgang A. Dipl.-Chem. Dr. 6074 Urberach Augstein
Manfred Dipl.-Chem. Dr. 6050 Offenbach Schober
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.)
DuPont de Nemours Deutschland GmbH
Original Assignee
DuPont de Nemours Deutschland GmbH
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 DuPont de Nemours Deutschland GmbH filed Critical DuPont de Nemours Deutschland GmbH
Priority to DE2406515A priority Critical patent/DE2406515C3/de
Priority to US05/547,749 priority patent/US3993490A/en
Priority to FR7504061A priority patent/FR2260813B1/fr
Priority to BE153282A priority patent/BE825443A/xx
Priority to GB6008/75A priority patent/GB1479836A/en
Publication of DE2406515A1 publication Critical patent/DE2406515A1/de
Publication of DE2406515B2 publication Critical patent/DE2406515B2/de
Application granted granted Critical
Publication of DE2406515C3 publication Critical patent/DE2406515C3/de
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485Direct positive emulsions
    • G03C1/48515Direct positive emulsions prefogged
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/42Developers or their precursors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
DE2406515A 1974-02-12 1974-02-12 Photographisches Material für die Herstellung von Direktpositiven Expired DE2406515C3 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2406515A DE2406515C3 (de) 1974-02-12 1974-02-12 Photographisches Material für die Herstellung von Direktpositiven
US05/547,749 US3993490A (en) 1974-02-12 1975-02-06 Direct positive photographic elements containing developers
FR7504061A FR2260813B1 (https=) 1974-02-12 1975-02-10
BE153282A BE825443A (fr) 1974-02-12 1975-02-12 Matiere photographique pour l'obtention de positifs directs
GB6008/75A GB1479836A (en) 1974-02-12 1975-02-12 Photographic material for producing direct positives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2406515A DE2406515C3 (de) 1974-02-12 1974-02-12 Photographisches Material für die Herstellung von Direktpositiven

Publications (3)

Publication Number Publication Date
DE2406515A1 DE2406515A1 (de) 1975-08-21
DE2406515B2 DE2406515B2 (de) 1977-10-27
DE2406515C3 true DE2406515C3 (de) 1978-06-15

Family

ID=5907134

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2406515A Expired DE2406515C3 (de) 1974-02-12 1974-02-12 Photographisches Material für die Herstellung von Direktpositiven

Country Status (5)

Country Link
US (1) US3993490A (https=)
BE (1) BE825443A (https=)
DE (1) DE2406515C3 (https=)
FR (1) FR2260813B1 (https=)
GB (1) GB1479836A (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077934A (en) * 1980-06-05 1981-12-23 Staveley Chemicals Ltd Photographic solutions containing hydroquinone monosulphonate
IL61497A (en) * 1980-11-16 1985-06-30 Hanetz Photographic Processes Developer for lith or line films and process for its use
JPS58120248A (ja) * 1982-01-12 1983-07-18 Konishiroku Photo Ind Co Ltd 直接ポジ画像形成方法
US4863843A (en) * 1984-10-30 1989-09-05 Mitsubishi Paper Mills, Ltd. Silver halide photographic emulsion containing predominantly silver bromide
JPH0727184B2 (ja) * 1986-10-27 1995-03-29 富士写真フイルム株式会社 直接ポジカラー画像形成方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512294A (https=) * 1951-06-27
GB1150553A (en) * 1965-04-30 1969-04-30 Agfa Gevaert Nv A Method of Producing Photographic Images
US3615517A (en) * 1968-09-09 1971-10-26 Mary D Illingsworth Direct-positive silver halide emulsion containing halogen conductor and electron acceptor developed with polyhydroxy benzene
US3632340A (en) * 1968-09-09 1972-01-04 Eastman Kodak Co Cored direct positive silver halide emulsion developed with polyhydroxybenzene
US3690891A (en) * 1970-07-20 1972-09-12 Eastman Kodak Co Infrared-sensitized silver halide systems
US3816135A (en) * 1972-03-30 1974-06-11 Du Pont Direct positive silver halide emulsions through synergistic effects of fogging agents and organic reducing agents and/or their oxidized forms

Also Published As

Publication number Publication date
BE825443A (fr) 1975-08-12
FR2260813B1 (https=) 1981-09-04
GB1479836A (en) 1977-07-13
DE2406515B2 (de) 1977-10-27
US3993490A (en) 1976-11-23
DE2406515A1 (de) 1975-08-21
FR2260813A1 (https=) 1975-09-05

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee