发明授权
US5508421A Pyrrolotriazole azomethine dye, and heat transfer dye providing material containing a pyrrolotriazole azomethine dye 失效
吡咯三唑偶氮甲碱染料和含有吡咯并三唑甲脒染料的热转印染料

Pyrrolotriazole azomethine dye, and heat transfer dye providing material
containing a pyrrolotriazole azomethine dye
摘要:
A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing a heat migrating dye, with the dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any of the above formulae (I), (II) and (IV).
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