The present invention provides novel anthrapyridone compounds or salts thereof which have a magenta hue and vividness suitable for ink-jet recording and give the recorded material having a high fastness in light fastness and water fastness.
That is, the present invention relates to an anthrapyridone compound represented by Formula A-B or the salt thereof, wherein A is the dyestuff residue represented by Formula (1)
(in the formula, R1 is hydrogen atom or an alkoxycarbonyl group and R2 is hydrogen atom or methyl group); and B is hydrogen atom or a substituent group on the dyestuff residue A, a water-based magenta ink composition which includes the said compound and an ink-jet recording method which uses the said compound.
本发明提供了新型
蒽吡啶酮化合物或其盐,它们具有适合喷墨记录的洋红色色调和鲜艳度,并使记录材料具有很高的耐光牢度和耐
水性。
也就是说,本发明涉及一种由式 A-B 表示的
蒽吡啶酮化合物或其盐,其中 A 是由式(1)表示的
染料残留物
(式中,R1 为氢原子或烷氧基羰基,R2 为氢原子或甲基);B 为氢原子或
染料残基 A 上的取代基;一种包含上述化合物的
水性洋红色墨
水组合物和一种使用上述化合物的喷墨记录方法。