THERMAL TRANSFER DYE DONATING MATERIAL

摘要

PURPOSE:To improve optical wall perforating properties without damage the properties required in a thermal transfer dye such as a hue, transfer properties or the like by using a specific dye as the thermal transfer dye. CONSTITUTION:A dye is represented by formula (I) (wherein A is a substituted 5-aryl-azoisothioazole dye residue, L is a divalent bond group or a single bond, B is an atomic group having effect suppressing the fading of a dye, q is 1 or 2, L-B may be same or different when q is 2). The substituted 5-aryl- azoisothiazole dye residue is represented by formula (I) A (wherein R and R are respectively independently a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, R, R, R and R are respectively independently are a hydrogen atom or a substituent substitutable on a benzene ring, R and R are respectively independently a hydrogen atom or a substituent substitutable on an isothiazole ring). The dye pref. has an MW of 800 or less, more pref., 700 or less.