DE1022090B - Verfahren zur Erzeugung eines Direktpositivbildes in einer Halogensilberemulsion unter Ausnuetzung des Clayden-Desensibilisierungseffektes - Google Patents

Verfahren zur Erzeugung eines Direktpositivbildes in einer Halogensilberemulsion unter Ausnuetzung des Clayden-Desensibilisierungseffektes

Info

Publication number
DE1022090B
DE1022090B DEE10923A DEE0010923A DE1022090B DE 1022090 B DE1022090 B DE 1022090B DE E10923 A DEE10923 A DE E10923A DE E0010923 A DEE0010923 A DE E0010923A DE 1022090 B DE1022090 B DE 1022090B
Authority
DE
Germany
Prior art keywords
emulsion
methyl
rhodanine
ethyl
thiohydantoin
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.)
Pending
Application number
DEE10923A
Other languages
German (de)
English (en)
Inventor
Edgar Alexander Mac William
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of DE1022090B publication Critical patent/DE1022090B/de
Pending 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
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/36Desensitisers
    • 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
    • G03C1/08Sensitivity-increasing substances
    • G03C1/10Organic substances
    • G03C1/12Methine and polymethine dyes
    • G03C1/22Methine and polymethine dyes with an even number of CH groups
    • 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
    • G03C1/48592Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/141Direct positive material

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)
  • Plural Heterocyclic Compounds (AREA)
DEE10923A 1954-06-29 1955-06-27 Verfahren zur Erzeugung eines Direktpositivbildes in einer Halogensilberemulsion unter Ausnuetzung des Clayden-Desensibilisierungseffektes Pending DE1022090B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440283A US2828203A (en) 1954-06-29 1954-06-29 Method of increasing clayden desensitization of photographic emulsions

Publications (1)

Publication Number Publication Date
DE1022090B true DE1022090B (de) 1958-01-02

Family

ID=23748162

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE10923A Pending DE1022090B (de) 1954-06-29 1955-06-27 Verfahren zur Erzeugung eines Direktpositivbildes in einer Halogensilberemulsion unter Ausnuetzung des Clayden-Desensibilisierungseffektes

Country Status (5)

Country Link
US (1) US2828203A (cg-RX-API-DMAC10.html)
BE (1) BE539345A (cg-RX-API-DMAC10.html)
DE (1) DE1022090B (cg-RX-API-DMAC10.html)
FR (1) FR1126802A (cg-RX-API-DMAC10.html)
GB (1) GB773388A (cg-RX-API-DMAC10.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063350A (en) * 1958-08-11 1962-11-13 Honeywell Regulator Co Recorder
GB1335965A (en) * 1970-02-17 1973-10-31 Agfa Gevaert Spectrally sensitized silver halide emulsions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078233A (en) * 1934-09-14 1937-04-27 Eastman Kodak Co Photographic emulsion
US2263757A (en) * 1937-12-16 1941-11-25 Eastman Kodak Co Ketone dye and process for preparing it
US2282116A (en) * 1939-04-14 1942-05-05 Eastman Kodak Co Photographic element

Also Published As

Publication number Publication date
BE539345A (cg-RX-API-DMAC10.html)
GB773388A (en) 1957-04-24
FR1126802A (fr) 1956-12-03
US2828203A (en) 1958-03-25

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