JPS557449A - Multicolor heat-sensitive recording material - Google Patents

Multicolor heat-sensitive recording material

Info

Publication number
JPS557449A
JPS557449A JP8055778A JP8055778A JPS557449A JP S557449 A JPS557449 A JP S557449A JP 8055778 A JP8055778 A JP 8055778A JP 8055778 A JP8055778 A JP 8055778A JP S557449 A JPS557449 A JP S557449A
Authority
JP
Japan
Prior art keywords
heat
condensate
sensitive
fatty acid
recording material
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
JP8055778A
Other languages
Japanese (ja)
Inventor
Takashi Kubo
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 JP8055778A priority Critical patent/JPS557449A/en
Publication of JPS557449A publication Critical patent/JPS557449A/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
    • B41M5/34—Multicolour thermography

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

PURPOSE:To improve the high-temperature heat-sensitive coloring property of a multicolor heat-sensitive recording material by incorporating in a high-temperature heat-sensitive coloring layer a condensate of a fatty acid amide and formaldehyde or a condensate of a fatty acid and ethylenediamine. CONSTITUTION:A multicolor heat-sensitive recording material comprises two heat- sensitive coloring layers which are different from each other in coloring temperature and in color tone and are consisting of a leuco dye and a phenolic substance or acid substance, and include a decoloring agent for the low-temperature heat-sensitive coloring component. In the high-temperature heat-sensitive coloring layer (the lower layer) is incorporated 0.1 to 2.0 parts by weight per one part by weight of the coloring agent of methylol amide which is a condensate of a fatty acid amide and formaldehyde and has a melting point above 110 deg.C or bisamine which is a condensate of a fatty acid and ethylenediamine and has a melting point above 110 deg.C.
JP8055778A 1978-07-04 1978-07-04 Multicolor heat-sensitive recording material Pending JPS557449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8055778A JPS557449A (en) 1978-07-04 1978-07-04 Multicolor heat-sensitive recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8055778A JPS557449A (en) 1978-07-04 1978-07-04 Multicolor heat-sensitive recording material

Publications (1)

Publication Number Publication Date
JPS557449A true JPS557449A (en) 1980-01-19

Family

ID=13721632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8055778A Pending JPS557449A (en) 1978-07-04 1978-07-04 Multicolor heat-sensitive recording material

Country Status (1)

Country Link
JP (1) JPS557449A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62207310A (en) * 1986-03-07 1987-09-11 Sumitomo Chem Co Ltd Ethylene/alpha-olefin copolymer rubber
US5885926A (en) * 1996-01-12 1999-03-23 Naigai Carbon Ink Co., Ltd. Heat sensitive color recording material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506349A (en) * 1973-05-16 1975-01-23
JPS5077073A (en) * 1973-07-27 1975-06-24

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506349A (en) * 1973-05-16 1975-01-23
JPS5077073A (en) * 1973-07-27 1975-06-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62207310A (en) * 1986-03-07 1987-09-11 Sumitomo Chem Co Ltd Ethylene/alpha-olefin copolymer rubber
US5885926A (en) * 1996-01-12 1999-03-23 Naigai Carbon Ink Co., Ltd. Heat sensitive color recording material

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