Invention Grant
- Patent Title: Heat-sensitive recording material
- Patent Title (中): 热敏记录材料
-
Application No.: US12043770Application Date: 2008-03-06
-
Publication No.: US08097560B2Publication Date: 2012-01-17
- Inventor: Yoshiaki Matsunaga , Yoshikazu Kaneko
- Applicant: Yoshiaki Matsunaga , Yoshikazu Kaneko
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2007-056733 20070307
- Main IPC: B41M5/333
- IPC: B41M5/333 ; B41M5/42

Abstract:
The present invention provides a heat-sensitive recording material with enhanced color developing sensitivity maintaining heat resistance and image storage stability characteristics such as plasticizer resistance and water resistance. The present invention provides a heat-sensitive recording material including at least a substrate and a heat-sensitive color developing layer containing a leuco dye and developers on the front surface of the substrate, wherein as the developers 4-hydroxy-4′-allyloxydiphenyl sulfone is used in combination with a first diphenyl compound represented by formula (1) and/or a second diphenyl compound represented by formula (2).
Public/Granted literature
- US20080220969A1 HEAT-SENSITIVE RECORDING MATERIAL Public/Granted day:2008-09-11
Information query
IPC分类: