JPS54121143A - Electro-thermographic material - Google Patents

Electro-thermographic material

Info

Publication number
JPS54121143A
JPS54121143A JP2767378A JP2767378A JPS54121143A JP S54121143 A JPS54121143 A JP S54121143A JP 2767378 A JP2767378 A JP 2767378A JP 2767378 A JP2767378 A JP 2767378A JP S54121143 A JPS54121143 A JP S54121143A
Authority
JP
Japan
Prior art keywords
iii
basic substance
thermal reduction
complex
images
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
JP2767378A
Other languages
Japanese (ja)
Inventor
Seiichi Sakuma
Makoto Kunikane
Satoru Yamamuro
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 JP2767378A priority Critical patent/JPS54121143A/en
Publication of JPS54121143A publication Critical patent/JPS54121143A/en
Pending legal-status Critical Current

Links

Landscapes

  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

PURPOSE: To eliminate the need for exposure despite the use of the specific Co(III) complex utilizing thermal reduction and yet enable distinct images to be obtained rapidly with slight current supply quantity or heat quantity by making combination use of alkaline metal hydroxides etc.
CONSTITUTION: The Co(III) complex such as hexammine cobalt (III) trifluoroacetate which produces basic substance through thermal reduction, the (hydr)oxide of alkaline (earth) metals or its hydrate, a material such as 1-nitroso-2-naphthol which colors or decolors by the action of the basic substance and a binder are dissolved or dispersed in a suitable solvent and the solution or dispersion is coated on a conductive substrate and is then dried. When the colored layer formed by being contacted of return circuit to said substrate is scanned and applied with voltage by a recording electrode, and coloring or decoloring trace is formed in the contact portion with the recording electrode, whereby the images are formed. In this recording material, care is not required in its handling under ordinary light or storage.
COPYRIGHT: (C)1979,JPO&Japio
JP2767378A 1978-03-13 1978-03-13 Electro-thermographic material Pending JPS54121143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2767378A JPS54121143A (en) 1978-03-13 1978-03-13 Electro-thermographic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2767378A JPS54121143A (en) 1978-03-13 1978-03-13 Electro-thermographic material

Publications (1)

Publication Number Publication Date
JPS54121143A true JPS54121143A (en) 1979-09-20

Family

ID=12227462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2767378A Pending JPS54121143A (en) 1978-03-13 1978-03-13 Electro-thermographic material

Country Status (1)

Country Link
JP (1) JPS54121143A (en)

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