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Title:
REVERSIBLE HEAT-SENSITIVE RECORDING MEDIUM, REVERSIBLE HEAT-SENSITIVE RECORDING LABEL, REVERSIBLE HEAT-SENSITIVE RECORDING MEMBER, IMAGE PROCESSING DEVICE, AND IMAGE PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2005254725
Kind Code:
A
Abstract:

To provide a thermal reversible recording medium or the like which has a favorable coloring density, and also, is excellent in high-speed erasability, and in addition, shows the favorable high-speed erasability in a wide environmental range from a normal temperature-normal humidity to a low temperature-low humidity, and can perform a rewriting recording of a high practicality.

This reversible heat-sensitive recording medium has at least a support, and a heat-sensitive layer on the support, of which the tone reversibly changes depending on a temperature. The heat-sensitive layer contains a polyalkylene oxide compound having a substituent group other than a hydroxyl group on both ends. A configuration that the substituent group other than the hydroxyl group is at least one of an ether group, an ester group and a urethane group, a configuration that the polyalkylene oxide compound is a polyethylene oxide compound, and also, a configuration that the number average molecular weight of the polyalkylene oxide compound is 2,000 to 6,000,000 are preferable.


Inventors:
Kawahara, Masaya
Hayakawa, Kunio
Shinpo, Hitoshi
Application Number:
JP2004000072475
Publication Date:
September 22, 2005
Filing Date:
March 15, 2004
Export Citation:
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Assignee:
RICOH CO LTD
International Classes:
B41J2/32; B41M5/26; B41M5/30; B41M5/333; B41M5/337; (IPC1-7): B41M5/26; B41J2/32; B41M5/30
Attorney, Agent or Firm:
廣田 浩一