EP 1504920 B1 20060419 - THERMAL RECORDING MATERIAL
Title (en)
THERMAL RECORDING MATERIAL
Title (de)
WÄRMEAUFZEICHNUNGSMATERIAL
Title (fr)
MATERIAU D'ENREGISTREMENT THERMIQUE
Publication
Application
Priority
- JP 0207912 W 20020802
- JP 2002137905 A 20020514
Abstract (en)
[origin: EP1504920A1] Disclosed is a heat-sensitive recording material comprising a support and a heat-sensitive recording layer formed on the support and containing a leuco dye, a developer and a binder, wherein the heat-sensitive recording material uses as the developer at least two hydroxy-diphenylsulfone compounds such as 4-hydroxy-4'-isopropoxy-diphenylsulfone, 2,4'-dihydroxy-diphenylsulfone and the like, and uses as the leuco dye a black-color-forming leuco dye such as 3-di(n-butyl)amino-6-methyl-7-anilinofluoran or the like and 0.5 to 3.5 wt.%, relative to the black-color-forming leuco dye, of a red-color-forming leuco dye such as 3-diethylamino-7-chlorofluoran or the like.
IPC 8 full level
B41M 5/30 (2006.01); B41M 5/327 (2006.01); B41M 5/333 (2006.01); B41M 5/40 (2006.01); B41M 5/42 (2006.01); B41M 5/44 (2006.01)
CPC (source: EP KR)
B41M 5/30 (2013.01 - KR); B41M 5/3275 (2013.01 - EP); B41M 5/3336 (2013.01 - EP); B41M 5/42 (2013.01 - EP); B41M 5/44 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1504920 A1 20050209; EP 1504920 A4 20050209; EP 1504920 B1 20060419; CN 1292919 C 20070103; CN 1538912 A 20041020; DE 60210824 D1 20060524; DE 60210824 T2 20061130; KR 100609819 B1 20060808; KR 20040044438 A 20040528; WO 03095219 A1 20031120
DOCDB simple family (application)
EP 02753221 A 20020802; CN 02815488 A 20020802; DE 60210824 T 20020802; JP 0207912 W 20020802; KR 20047001422 A 20020802