EP 0286116 B1 19911211 - HEAT-SENSITIVE RECORDING MATERIAL
Title (en)
HEAT-SENSITIVE RECORDING MATERIAL
Publication
Application
Priority
JP 8750387 A 19870409
Abstract (en)
[origin: JPS63252784A] PURPOSE:To obtain a thermal recording material show excellent optical readability in a near infrared region, by incorporating a specified infrared-absorbing fluoran leuco dye into a thermal color forming layer, in a thermal recording material comprising a chelate type thermal color forming layer using a metallic compound. CONSTITUTION:A near infrared-absorbing fluoran leuco dye of the formula is incorporated in a thermal color forming layer comprising an electron acceptor and an electron donor. Preferable examples of the fluoran leuco dye are 2- methyl-6-p(p-dimethylaminophenyl)aminoanilinofluoran (m.p. 197-203 deg.C) and 2-chloro-3-methyl-6-p-( p-phenylaminophenyl ) aminoanilinofluoran (m.p. 191.5- 196 deg.C). In the formula, each of T1, T2 and T3 is hydrogen, a 1-8C alkyl, 3-9C alkenyl or 3-9C alkynyl, and T4 is hydrogen, a 1-8C alkyl, 3-9C alkenyl, 3-9C alkynyl or phenyl.
IPC 1-7
IPC 8 full level
B41M 5/32 (2006.01); B41M 5/323 (2006.01); B41M 5/327 (2006.01); B41M 5/333 (2006.01); B41M 5/337 (2006.01); G03C 1/498 (2006.01); B41M 5/30 (2006.01)
CPC (source: EP US)
B41M 5/32 (2013.01 - EP US); B41M 5/3275 (2013.01 - EP US); B41M 5/3333 (2013.01 - EP US); B41M 5/3335 (2013.01 - EP US); G03C 1/4989 (2013.01 - EP US); B41M 5/3336 (2013.01 - EP US); Y10S 428/913 (2013.01 - EP US); Y10S 428/914 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0286116 A2 19881012; EP 0286116 A3 19890412; EP 0286116 B1 19911211; DE 3866752 D1 19920123; JP H066392 B2 19940126; JP S63252784 A 19881019; US 4853363 A 19890801
DOCDB simple family (application)
EP 88105625 A 19880408; DE 3866752 T 19880408; JP 8750387 A 19870409; US 17814388 A 19880406