JPS5616127A - Photosensitive heat-sensitive composition - Google Patents

Photosensitive heat-sensitive composition

Info

Publication number
JPS5616127A
JPS5616127A JP9093979A JP9093979A JPS5616127A JP S5616127 A JPS5616127 A JP S5616127A JP 9093979 A JP9093979 A JP 9093979A JP 9093979 A JP9093979 A JP 9093979A JP S5616127 A JPS5616127 A JP S5616127A
Authority
JP
Japan
Prior art keywords
complex
silica
cobalt
photoreducing agent
iii
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
JP9093979A
Other languages
Japanese (ja)
Inventor
Kiyoshi Taniguchi
Makoto Kunikane
Akiyoshi Yasumori
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP9093979A priority Critical patent/JPS5616127A/en
Publication of JPS5616127A publication Critical patent/JPS5616127A/en
Pending 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
    • G03C1/67—Compositions containing cobalt salts or cobalt compounds as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

PURPOSE:To attain uniform coloring of high sensitivity and facilitate the manufacture of the titled composition by adding silica to a cobalt (III) complex, a photoreducing agent capable of forming a redox couple with the complex in the presence of light and a hydrogen donor. CONSTITUTION:Alkaline colloidal silica or the like of 1-10 mu particle size is added to the following three componets: a cobalt ( ) complex such as hexamminecobalt (III) acetate which generates a basic substance such as NH3 by reduction in heating, a photoreducing agent such as quinone (5,8-dihydro-1,4-naphthoquinone or the like) or aromatic disulfide which reduces the complex by photodegradation or heating, and a hydrogen donor such as polyethylene glycol or polyvinyl alcohol having H easy to activate to donate hydrogen to the photoreducing agent. Since the silica prevents the escape of NH3 or the like generated by the decomposition of the Co complex and allows amplification reaction to take place efficiently, a superior image of high sensitivity is obtd.
JP9093979A 1979-07-19 1979-07-19 Photosensitive heat-sensitive composition Pending JPS5616127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9093979A JPS5616127A (en) 1979-07-19 1979-07-19 Photosensitive heat-sensitive composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9093979A JPS5616127A (en) 1979-07-19 1979-07-19 Photosensitive heat-sensitive composition

Publications (1)

Publication Number Publication Date
JPS5616127A true JPS5616127A (en) 1981-02-16

Family

ID=14012413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9093979A Pending JPS5616127A (en) 1979-07-19 1979-07-19 Photosensitive heat-sensitive composition

Country Status (1)

Country Link
JP (1) JPS5616127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366846A (en) * 1992-04-02 1994-11-22 Shipley Company Inc. Photoimageable compositions comprising polybutadiene having internal epoxide groups

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5366846A (en) * 1992-04-02 1994-11-22 Shipley Company Inc. Photoimageable compositions comprising polybutadiene having internal epoxide groups

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