Patent Number: 6,309,807

Title: Disazo dye for thermal transfer recording and thermal transfer sheet and ink for thermal transfer recording, employing it

Abstract: A disazo dye for thermal transfer recording of the following formula (I): ##STR1## wherein each of rings A and B which are independent of each other, is a benzene ring which may have a substituent, R.sup.1 is a C.sub.1-4 substituted or unsubstituted alkyl group, and R.sup.2 is a group selected from the group consisting of a hydrogen atom and a C.sub.1-4 substituted or unsubstituted alkyl group.

Inventors: Ishida; Mio (Kanagawa, JP), Maeda; Koji (Kanagawa, JP), Murata; Yukichi (Kanagawa, JP)

Assignee: Mitsubishi Chemical Corporation

International Classification: C09B 31/062 (20060101); C09B 31/00 (20060101); G03C 001/73 (); G03C 008/10 (); C07C 245/00 (); C09B 031/02 (); B41M 005/20 ()

Expiration Date: 10/30/2018