JPS57195686A - Recording paper - Google Patents

Recording paper

Info

Publication number
JPS57195686A
JPS57195686A JP56080369A JP8036981A JPS57195686A JP S57195686 A JPS57195686 A JP S57195686A JP 56080369 A JP56080369 A JP 56080369A JP 8036981 A JP8036981 A JP 8036981A JP S57195686 A JPS57195686 A JP S57195686A
Authority
JP
Japan
Prior art keywords
compound
color
derivative
recording paper
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
JP56080369A
Other languages
Japanese (ja)
Other versions
JPS6352592B2 (en
Inventor
Takashi Akamatsu
Yukio Kuwabara
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP56080369A priority Critical patent/JPS57195686A/en
Publication of JPS57195686A publication Critical patent/JPS57195686A/en
Publication of JPS6352592B2 publication Critical patent/JPS6352592B2/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
    • B41M5/3275—Fluoran compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Printing (AREA)

Abstract

PURPOSE:To provide a heat-sensitive recording paper which forms a color with a black color tone when in contact with an acidic substance and provides a recorded image having excellent resistance to light and water, by providing a specified derivative of fluoran on a base as an electron-donative color former. CONSTITUTION:A derivative of fluoran of formulaI[where each of R<1> and R<2> is 1-8 C alkyl; R<3> is cycloalkyl, cyanoethyl, carbamidoethyl, carbalkoxyethyl, (tetrahydro)furfuryl or the like](e.g., a compound of formula II) is provided on the base as an electron-donative color former together with a film-forming agent or the like to obtain the objective recording paper. The compound of formulaIis obtained, for example, by bringing a compound of formula III and a derivative of phenol of formula IV (where R is H, 1-4 C alkyl) into reaction by using a dehydrating-condensing agent at a temperature of -5-90 deg.C, followed by pouring the reaction product into water and treating with an alkali to crystallize the objective compound. EFFECT:Storage stability and color-forming property are enhanced.
JP56080369A 1981-05-26 1981-05-26 Recording paper Granted JPS57195686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56080369A JPS57195686A (en) 1981-05-26 1981-05-26 Recording paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56080369A JPS57195686A (en) 1981-05-26 1981-05-26 Recording paper

Publications (2)

Publication Number Publication Date
JPS57195686A true JPS57195686A (en) 1982-12-01
JPS6352592B2 JPS6352592B2 (en) 1988-10-19

Family

ID=13716349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56080369A Granted JPS57195686A (en) 1981-05-26 1981-05-26 Recording paper

Country Status (1)

Country Link
JP (1) JPS57195686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610247A1 (en) * 1984-09-25 1988-08-05 Hodogaya Chemical Co Ltd HEAT-SENSITIVE RECORDING SHEET

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610247A1 (en) * 1984-09-25 1988-08-05 Hodogaya Chemical Co Ltd HEAT-SENSITIVE RECORDING SHEET

Also Published As

Publication number Publication date
JPS6352592B2 (en) 1988-10-19

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