Dye and dye carrier ink ribbon for thermal dye transfer hard copy

摘要

Cationic dyes and dye carrier ink ribbons are disclosed which is used in thermal dye transfer hard copy system. A counter ion (anion) of hydrophilic cationic dyes such as a halogen ion is replaced by anionic surface active agent such a dodecylbezenesulfonate ion through ion exchange treatment to obtain a dye having a structure of the following formula. The dye is used to form a coloring layer on a PETP film to obtain a dye carrier ink ribbon for thermal dye transfer systems.