JPS6424787A - Thermal recording material - Google Patents

Thermal recording material

Info

Publication number
JPS6424787A
JPS6424787A JP62182933A JP18293387A JPS6424787A JP S6424787 A JPS6424787 A JP S6424787A JP 62182933 A JP62182933 A JP 62182933A JP 18293387 A JP18293387 A JP 18293387A JP S6424787 A JPS6424787 A JP S6424787A
Authority
JP
Japan
Prior art keywords
thermal recording
recording material
color developer
leuco dye
formula
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
JP62182933A
Other languages
Japanese (ja)
Other versions
JP2534068B2 (en
Inventor
Kunio Hayakawa
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 JP62182933A priority Critical patent/JP2534068B2/en
Publication of JPS6424787A publication Critical patent/JPS6424787A/en
Application granted granted Critical
Publication of JP2534068B2 publication Critical patent/JP2534068B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41M5/333—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

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)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

PURPOSE:To obtain a near infrared absorption type thermal recording material having excellent light resistance, by using a specified leuco dye and a specified color developer. CONSTITUTION:A thermal recording material comprises a phthalide compound of formula I as a dye and a compound of formula II as a color developer. The phthalide compound of formula I may be used in combination with other leuco dye, e.g., 3,3-bis(p-dimethylaminophenyl)phthalide. In binding and supporting the leuco dye and the color developer on a base for obtaining a thermal recording material, a conventional binder such as polyvinyl alcohol may be used, as required. If required, auxiliary additive components conventionally used for producing such thermal recording materials may be jointly used. To produce the thermal recording material, the leuco dye and the color developer are separately dispersed to obtain dispersed liquids, which are mixed with an appropriate binder, and the resultant mixed liquid is applied to the base such as a paper.
JP62182933A 1987-07-21 1987-07-21 Thermal recording material Expired - Lifetime JP2534068B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62182933A JP2534068B2 (en) 1987-07-21 1987-07-21 Thermal recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182933A JP2534068B2 (en) 1987-07-21 1987-07-21 Thermal recording material

Publications (2)

Publication Number Publication Date
JPS6424787A true JPS6424787A (en) 1989-01-26
JP2534068B2 JP2534068B2 (en) 1996-09-11

Family

ID=16126912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182933A Expired - Lifetime JP2534068B2 (en) 1987-07-21 1987-07-21 Thermal recording material

Country Status (1)

Country Link
JP (1) JP2534068B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5461231A (en) * 1993-05-11 1995-10-24 Optex Co. Ltd. Passive type moving object detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5461231A (en) * 1993-05-11 1995-10-24 Optex Co. Ltd. Passive type moving object detection system

Also Published As

Publication number Publication date
JP2534068B2 (en) 1996-09-11

Similar Documents

Publication Publication Date Title
JPS6424787A (en) Thermal recording material
JPS57129785A (en) Heat sensitive recording paper
JPS5530943A (en) Heat sensitive recording paper sheet
JPS53120541A (en) Two step coloring heat sensitive recording paper
JPS5644687A (en) Thermo-sensitive recording sheet
KR890005579A (en) Multicolored Thermal Recording Material
JPS57126693A (en) Thermal recording sheet
JPS5619793A (en) Thermal recording paper with improved surface blush
JPS57189889A (en) Heat-sensitive recording material
JPS5646785A (en) Thermosensitive recording material
JPS6442276A (en) Phthalide compound capable of color reaction and recording material with said compound as color forming component
JPS5525306A (en) Multi-color heat-sensitive recording material
JPS55133992A (en) Two-color developing thermosensitive recording paper
JPS648089A (en) Thermal recording paper
JPS57137186A (en) Heat-sensitive recording material
JPS56136389A (en) Thermosensitive coloring sheet
JPS6471785A (en) Thermosensitive recording material
JPS5711087A (en) Thermosensitive recording sheet improved in water-resisting property
JPS5638293A (en) Heat-sensitive recording paper
JPS5672995A (en) Thermal recording material
JPS5793198A (en) Heat-sensitive recording material
JPS641580A (en) Recording material
JPS55161688A (en) Multicolor heat-sensitive recording material
JPS5727784A (en) Recording method
JPS5739986A (en) Heat-sensitive recording material