JPS6431683A - Thermal recording material - Google Patents

Thermal recording material

Info

Publication number
JPS6431683A
JPS6431683A JP62191079A JP19107987A JPS6431683A JP S6431683 A JPS6431683 A JP S6431683A JP 62191079 A JP62191079 A JP 62191079A JP 19107987 A JP19107987 A JP 19107987A JP S6431683 A JPS6431683 A JP S6431683A
Authority
JP
Japan
Prior art keywords
pts
formula
compound
color
leuco dye
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
JP62191079A
Other languages
Japanese (ja)
Inventor
Kenji Uematsu
Satomi Endo
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 JP62191079A priority Critical patent/JPS6431683A/en
Publication of JPS6431683A publication Critical patent/JPS6431683A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/333—Colour developing components therefor, e.g. acidic compounds
    • B41M5/3333—Non-macromolecular compounds
    • B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof
    • B41M5/3336—Sulfur compounds, e.g. sulfones, sulfides, sulfonamides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

PURPOSE:To obtain a thermal recording material having excellent high-speed color forming properties, image stability and texture stability, by jointly using a specified leuco dye and a specified color developer. CONSTITUTION:In providing a thermal color forming layer, 1,7-di (4- hydroxyphenylthio)-3,5-dioxaheptane of formula [II] and a compound of formula [III], wherein R is methyl or benzyl, are used as color developers. The compound of formula [II] is suitably used in an amount of 1-10 pts.wt., preferably, 2-5 pts.wt. whereas the compound of formula [III] is suitably used in an amount of 0.1-5 pts.wt., preferably, 0.5-2 pts.wt. per 1 pts.wt. of 2'-anilino6'-(N- propyl-N-methylamino)-3'-methylspiro [phthalide3,9'-exanthene] of formula [I] used as a leuco dye. A color developer to be jointly used, as required, may be an electron-acceptive compound, or an oxidizing agent or the like capable of developing the leuco dye into a color upon making contact with the leuco dye.
JP62191079A 1987-07-29 1987-07-29 Thermal recording material Pending JPS6431683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62191079A JPS6431683A (en) 1987-07-29 1987-07-29 Thermal recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62191079A JPS6431683A (en) 1987-07-29 1987-07-29 Thermal recording material

Publications (1)

Publication Number Publication Date
JPS6431683A true JPS6431683A (en) 1989-02-01

Family

ID=16268514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62191079A Pending JPS6431683A (en) 1987-07-29 1987-07-29 Thermal recording material

Country Status (1)

Country Link
JP (1) JPS6431683A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451766A2 (en) * 1990-04-10 1991-10-16 Nippon Paper Industries Co., Ltd. Heat-sensitive recording sheet
JPH05147351A (en) * 1991-11-28 1993-06-15 Fuji Photo Film Co Ltd Thermal recording material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451766A2 (en) * 1990-04-10 1991-10-16 Nippon Paper Industries Co., Ltd. Heat-sensitive recording sheet
JPH05147351A (en) * 1991-11-28 1993-06-15 Fuji Photo Film Co Ltd Thermal recording material

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