JPS57128593A - Thermosensitve recording material - Google Patents

Thermosensitve recording material

Info

Publication number
JPS57128593A
JPS57128593A JP56014551A JP1455181A JPS57128593A JP S57128593 A JPS57128593 A JP S57128593A JP 56014551 A JP56014551 A JP 56014551A JP 1455181 A JP1455181 A JP 1455181A JP S57128593 A JPS57128593 A JP S57128593A
Authority
JP
Japan
Prior art keywords
color
thermosensitive
forming
forming substance
substrate
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
JP56014551A
Other languages
Japanese (ja)
Inventor
Susumu Iwata
Shinichi Asami
Kiyotaka Iiyama
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 JP56014551A priority Critical patent/JPS57128593A/en
Publication of JPS57128593A publication Critical patent/JPS57128593A/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
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/3275—Fluoran compounds

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 improve the whiteness of the base of a thermosensitive color-forming layer and the clearness of a colored image, by incorporating a specified fluoran compound into the layer. CONSTITUTION:A specified fluoran compound represented by the formula is used as a color forming substance for a thermosensitive recording material composed of a thermosensitive color-forming layer provided on a substrate. Ordinarily the color-forming substance together with a color developing substance, a binder, a filler and other additives, alone or as a mixture of them excluding the color-forming substance, as well as a protective colloid such as polyvinyl alcohol, a surface active agent and the like are added to an aqueous medium and then dispersed by a dispersing machine such as a ball mill, an attritor or a sand mill. The prepared dispersion is coated on a substrate and dried to obtain a thermosensitive material, which offers excellent base density with a whiter color, a clear colored image and excellent traceability on a thermal head.
JP56014551A 1981-02-03 1981-02-03 Thermosensitve recording material Pending JPS57128593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56014551A JPS57128593A (en) 1981-02-03 1981-02-03 Thermosensitve recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56014551A JPS57128593A (en) 1981-02-03 1981-02-03 Thermosensitve recording material

Publications (1)

Publication Number Publication Date
JPS57128593A true JPS57128593A (en) 1982-08-10

Family

ID=11864281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56014551A Pending JPS57128593A (en) 1981-02-03 1981-02-03 Thermosensitve recording material

Country Status (1)

Country Link
JP (1) JPS57128593A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255484A (en) * 1984-05-31 1985-12-17 Ricoh Co Ltd Thermal recording material
JPS61116586A (en) * 1984-11-12 1986-06-04 Ricoh Co Ltd Thermal recording material
JPS61193883A (en) * 1985-02-23 1986-08-28 Ricoh Co Ltd heat sensitive recording material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255484A (en) * 1984-05-31 1985-12-17 Ricoh Co Ltd Thermal recording material
JPS61116586A (en) * 1984-11-12 1986-06-04 Ricoh Co Ltd Thermal recording material
JPS61193883A (en) * 1985-02-23 1986-08-28 Ricoh Co Ltd heat sensitive recording material

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