发明授权
US5646257A Azodyestuffs, their preparation and their use 失效
Azodyestuffs,他们的准备和使用

Azodyestuffs, their preparation and their use
摘要:
The new dyestuffs of the formula (I) ##STR1## wherein the substituents R and R.sup.1 and the index n have the meaning given in the description, are outstandingly suitable for dyeing and printing cellulose-containing materials, in particular for the preparation of recording liquids for ink jet recording systems.
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