JPS5525306A - Multi-color heat-sensitive recording material - Google Patents

Multi-color heat-sensitive recording material

Info

Publication number
JPS5525306A
JPS5525306A JP9666678A JP9666678A JPS5525306A JP S5525306 A JPS5525306 A JP S5525306A JP 9666678 A JP9666678 A JP 9666678A JP 9666678 A JP9666678 A JP 9666678A JP S5525306 A JPS5525306 A JP S5525306A
Authority
JP
Japan
Prior art keywords
sensitive
heat
colorifying
recording material
layers
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
JP9666678A
Other languages
Japanese (ja)
Other versions
JPS5758311B2 (en
Inventor
Takashi Kubo
Yasuhiro Honda
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 JP9666678A priority Critical patent/JPS5525306A/en
Publication of JPS5525306A publication Critical patent/JPS5525306A/en
Publication of JPS5758311B2 publication Critical patent/JPS5758311B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain multi-color heat-sensitive recording material improved in reservability thereof by laminating two heat-sensitive colorific layers colorified with different colors and lendering terephthalic acid added with ethylene oxide to exist in the upper heat-sensitive colorifying layer.
CONSTITUTION: Two heat-sensitive colorifying layers having different colorifying temperatures and shades are formed on a supporting member. In a multi-color heat-sensitive recording material, in which the heat-sensitive colorifying component of an upper layer, at least, is consisting of leuco dye, colorless or thin colored, and phenolic or acidic substance, terephthalic acid added with ethylene oxide is existed in the upper heat-sensitive colorifying layer or both layers. The leuco dyes adapted for it are: 3,3-Vis (p-dimethylaminophenyl)-phthalid; 3-cyclohexyl amino-6-chrolfluorene; and the like. The phenolic substances adapted for it are: 3,5-xylenol; thymol and the like.
COPYRIGHT: (C)1980,JPO&Japio
JP9666678A 1978-08-10 1978-08-10 Multi-color heat-sensitive recording material Granted JPS5525306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9666678A JPS5525306A (en) 1978-08-10 1978-08-10 Multi-color heat-sensitive recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9666678A JPS5525306A (en) 1978-08-10 1978-08-10 Multi-color heat-sensitive recording material

Publications (2)

Publication Number Publication Date
JPS5525306A true JPS5525306A (en) 1980-02-23
JPS5758311B2 JPS5758311B2 (en) 1982-12-09

Family

ID=14171128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9666678A Granted JPS5525306A (en) 1978-08-10 1978-08-10 Multi-color heat-sensitive recording material

Country Status (1)

Country Link
JP (1) JPS5525306A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328977A (en) * 1979-08-31 1982-05-11 Nippon Telegraph & Telephone Public Corp. Recording paper capable of recording images in two colors
US4613878A (en) * 1984-11-15 1986-09-23 Ricoh Company, Ltd. Two-color thermosensitive recording material
JPS61290089A (en) * 1985-06-18 1986-12-20 Ricoh Co Ltd Two color forming thermal recording material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328977A (en) * 1979-08-31 1982-05-11 Nippon Telegraph & Telephone Public Corp. Recording paper capable of recording images in two colors
US4613878A (en) * 1984-11-15 1986-09-23 Ricoh Company, Ltd. Two-color thermosensitive recording material
JPS61290089A (en) * 1985-06-18 1986-12-20 Ricoh Co Ltd Two color forming thermal recording material

Also Published As

Publication number Publication date
JPS5758311B2 (en) 1982-12-09

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