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Title:
THERMOSENSITIVE RECORDING SHEET
Document Type and Number:
Japanese Patent JPH04314585
Kind Code:
A
Abstract:

PURPOSE: To obtain a high-quality thermosensitive recording sheet having a high sensitivity, little possibility of adhesion of foreign matter, and a superior shelf stability under high-temperature and -humidity conditions in a thermosensitive recording sheet containing bis(p-methylbenzyl)oxalate as a sensitizer.

CONSTITUTION: In a thermosensitive recording sheet formed by providing a color forming layer mainly composed of an electron donative colorless dye and an electron accepting compound reacting with said dye to form a color under heat on a substrate, bis(p-methylbenzyl)oxalate is incorporated in said color forming layer. The thermosensitive recording sheet has an extract pH of 7.0-9.0 (based on a cold water extraction method as an JIS P 8133 method). The combination of the thermosensitive recording layer containing bis(p- methylbenzyl)oxalate with the thermosensitive recording sheet having an extract pH of 7.0-9.0 ensures a high-quality thermosensitive recording sheet having a high sensitivity, little possibility of adhesion of foreign matter, and a superior shelf stability under high-temperature and -humidity conditions.


Inventors:
KIRIYAMA TOMONORI
Application Number:
JP1991000108637
Publication Date:
November 05, 1992
Filing Date:
April 12, 1991
Export Citation:
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Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
B41M5/28; B41M5/26; B41M5/30; B41M5/337; (IPC1-7): B41M5/26



 
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