Monoazo dye for thermal transfer printing
AssigneeHansol Paper Co., Ltd.
InventorsKi-taek Lee, Young-soup Son, Woo-seok Han, Soon-yeol Eom
Life of this patent
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Abstract
A new sublimable magenta monoazo dye for thermal transfer printing has a closed ring imido group in an aromatic azo compound, as the following formula: ##STR1## The magenta monoazo dye achieves substantial improvements in stability, hue, gray and color development.
Claims11
A magenta monoazo dye having the following formula:
- ##STR50##
A magenta monoazo dye having the following formula:
- ##STR51##
A magenta monoazo dye having the following formula:
- ##STR52##
A magenta monoazo dye having the following formula:
- ##STR53##
A magenta monoazo dye having the following formula:
- ##STR54##
A magenta monoazo dye having the following formula:
- ##STR55##
A magenta monoazo dye having the following formula:
- ##STR56##
A magenta monoazo dye having the following formula:
- ##STR57##
A magenta monoazo dye having the following formula:
- ##STR58##
A magenta monoazo dye having the following formula:
- ##STR59##
A magenta monoazo dye having the following formula:
- ##STR60##
Dependencies are inferred from the claim text.