JPS57137188A - Heat-sensitive copying sheet - Google Patents

Heat-sensitive copying sheet

Info

Publication number
JPS57137188A
JPS57137188A JP56021515A JP2151581A JPS57137188A JP S57137188 A JPS57137188 A JP S57137188A JP 56021515 A JP56021515 A JP 56021515A JP 2151581 A JP2151581 A JP 2151581A JP S57137188 A JPS57137188 A JP S57137188A
Authority
JP
Japan
Prior art keywords
heat
sensitive copying
dye
atoms
copying sheet
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.)
Granted
Application number
JP56021515A
Other languages
Japanese (ja)
Other versions
JPH0152197B2 (en
Inventor
Makoto Asano
Kiyoharu Hasegawa
Hiroyuki Akahori
Michihiro Tsujimoto
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP56021515A priority Critical patent/JPS57137188A/en
Publication of JPS57137188A publication Critical patent/JPS57137188A/en
Publication of JPH0152197B2 publication Critical patent/JPH0152197B2/ja
Granted 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
    • 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
    • B41M5/337—Additives; Binders
    • 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 obtain a heat-sensitive copying sheet which is remarkably less in coloration and is completely free of discolorization with time, by using a specific structure of a lactonic dye as an electron donative colorant, together with a sequestering agent. CONSTITUTION:A water paint, containing as an electron donative colorant a lactonic dye of formulaI[where a-d are all C atoms, 1-2 of a-d are N atoms, others are C atoms with or without a substituent, the bonds a-b, b-c, and c-d may form other rings, and X and Y are each (substituted) benzene, naphthalene, or an aromatic heterocyclic ring and may form a ring by combination][e.g., phthalide, (di)azaphthalide, or fluoranic dye, as represented by formulas II-IV], a sequestering agent (B) (e.g., sodium ethylenediaminetetraacetate), and an acid developer, is coated on a support to obtain a heat-sensitive copying sheet.
JP56021515A 1981-02-18 1981-02-18 Heat-sensitive copying sheet Granted JPS57137188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56021515A JPS57137188A (en) 1981-02-18 1981-02-18 Heat-sensitive copying sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56021515A JPS57137188A (en) 1981-02-18 1981-02-18 Heat-sensitive copying sheet

Publications (2)

Publication Number Publication Date
JPS57137188A true JPS57137188A (en) 1982-08-24
JPH0152197B2 JPH0152197B2 (en) 1989-11-08

Family

ID=12057101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56021515A Granted JPS57137188A (en) 1981-02-18 1981-02-18 Heat-sensitive copying sheet

Country Status (1)

Country Link
JP (1) JPS57137188A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001106955A (en) * 1999-09-30 2001-04-17 Eastman Kodak Co Stabilized coating composition
EP3219506A1 (en) * 2016-03-17 2017-09-20 Ricoh Company, Ltd. Thermosensitive recording materials containing chelating agents

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156088A (en) * 1979-05-24 1980-12-04 Honshu Paper Co Ltd Thermosensitive recording sheet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156088A (en) * 1979-05-24 1980-12-04 Honshu Paper Co Ltd Thermosensitive recording sheet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001106955A (en) * 1999-09-30 2001-04-17 Eastman Kodak Co Stabilized coating composition
EP3219506A1 (en) * 2016-03-17 2017-09-20 Ricoh Company, Ltd. Thermosensitive recording materials containing chelating agents
US10118427B2 (en) 2016-03-17 2018-11-06 Ricoh Company, Ltd. Thermosensitive recording materials containing chelating agents

Also Published As

Publication number Publication date
JPH0152197B2 (en) 1989-11-08

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