Process for transferring dyes

Abstract

Abstract In the process, dyes of the formula (I) …<IMAGE>… are transferred from a carrier with the aid of a thermal printing head. In the formula, X denotes H or CN, R<1>, R<2> and R<3> independently of one another denote alkyl, alkylcarbonyloxyalkyl, alkoxycarbonyloxy- alkyl, alkoxycarbonylalkyl, haloalkyl, hydroxyalkyl or cyanoalkyl or denote benzyl or phenyl which is optionally substituted by alkyl or alkoxy or denote a radical of the formula -[Y-O]m-R<4> (II),… in which Y is C2-C6-alkylene, m is 1 to 6 and R<4> is alkyl or phenyl, and R<1> and R<3> are optionally substituted alkyl or optionally substituted phenyl when X is H or R<3> must be optionally substituted phenyl when X is H and R<1> is H. …<??>The dyes (I) have better solubility and/or higher lightfastness compared with the prior art and good to outstanding transfer properties.

Inventors

• 👤 Volker Dr. Bach
• 👤 Ruediger Dr. Sens
• 👤 Karl-Heinz Dr. Etzbach
• 👤 Manfred Ruske

Bibliographic Details