JPS57178791A - Multicolor heat sensitive recording material - Google Patents

Multicolor heat sensitive recording material

Info

Publication number
JPS57178791A
JPS57178791A JP56064964A JP6496481A JPS57178791A JP S57178791 A JPS57178791 A JP S57178791A JP 56064964 A JP56064964 A JP 56064964A JP 6496481 A JP6496481 A JP 6496481A JP S57178791 A JPS57178791 A JP S57178791A
Authority
JP
Japan
Prior art keywords
signifies
heat sensitive
coloring
halogen
layer
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
JP56064964A
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 JP56064964A priority Critical patent/JPS57178791A/en
Publication of JPS57178791A publication Critical patent/JPS57178791A/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 obtain an image having good contrast by mixing a specific aromatic compound and a substance having color erasing effect for a heat sensitive layer between two heat sensitive coloring layers of different coloring temperatures. CONSTITUTION:The upper layer of two heat sensitive layers which colors in different color tones at different coloring temperature contains as main ingredients colorless or pale leuco dye and an acidic substance. A substance having a color erasing effect for at least one heat sensitive coloring layer and an intermediate layer containing at least one of compounds represented by the formualI, where X signifies halogen, Y signifies alkylalkoxy, halogen, or benzyl, etc., n signifies 0-3, and m signifies 1-3, the formula II, where R1, R2 signify hydrogen, alkyl, or alkoxy group, and the formula III, where R3 signifies hydrogen, alkyl, alkoxy, or halogen, and R4 signifies alkyl, substituted or non-substituted alkaryl etc., are provided between the two layers, thereby enhancing the coloring property of the low temperature coloring layer.
JP56064964A 1981-04-28 1981-04-28 Multicolor heat sensitive recording material Pending JPS57178791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56064964A JPS57178791A (en) 1981-04-28 1981-04-28 Multicolor heat sensitive recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56064964A JPS57178791A (en) 1981-04-28 1981-04-28 Multicolor heat sensitive recording material

Publications (1)

Publication Number Publication Date
JPS57178791A true JPS57178791A (en) 1982-11-04

Family

ID=13273233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56064964A Pending JPS57178791A (en) 1981-04-28 1981-04-28 Multicolor heat sensitive recording material

Country Status (1)

Country Link
JP (1) JPS57178791A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479138A (en) * 1981-10-06 1984-10-23 Fuji Photo Film Co., Ltd. Heat-sensitive recording materials
EP0154336A2 (en) * 1984-03-07 1985-09-11 Jujo Paper Co., Ltd. Thermosensitive recording sheet
JPH0885632A (en) * 1994-09-17 1996-04-02 Ishiyama Bunyo Powder feeding machine
EP1134088A2 (en) * 2000-03-17 2001-09-19 Toshiba Tec Kabushiki Kaisha Multicolor thermosensitive recording medium, method of manufacturing the same, and method of printing using the same
US7405179B2 (en) 2004-03-15 2008-07-29 Toshiba Tec Kabushiki Kaisha Thermosensitive recording medium and method of manufacturing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479138A (en) * 1981-10-06 1984-10-23 Fuji Photo Film Co., Ltd. Heat-sensitive recording materials
EP0154336A2 (en) * 1984-03-07 1985-09-11 Jujo Paper Co., Ltd. Thermosensitive recording sheet
JPH0885632A (en) * 1994-09-17 1996-04-02 Ishiyama Bunyo Powder feeding machine
EP1134088A2 (en) * 2000-03-17 2001-09-19 Toshiba Tec Kabushiki Kaisha Multicolor thermosensitive recording medium, method of manufacturing the same, and method of printing using the same
EP1134088A3 (en) * 2000-03-17 2003-04-23 Toshiba Tec Kabushiki Kaisha Multicolor thermosensitive recording medium, method of manufacturing the same, and method of printing using the same
US7405179B2 (en) 2004-03-15 2008-07-29 Toshiba Tec Kabushiki Kaisha Thermosensitive recording medium and method of manufacturing the same

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