| abstract |
The present invention relates to a black cow and a compound represented by the following formula (1):n n n n n n n n (Wherein A and D each independently represent an optionally substituted phenyl group or a naphthyl group, and m and n each represent 1 or 2), and are also an ink containing a recording dye and the same. The compound exhibits high solubility in media containing water as a main component, and is stable when a high concentration of aqueous dye solution or ink is prepared therefrom and stored for a long time, has low color rendering properties, and is colorless and neutral black. Provide a printed image with high density, and also provide a recorded image of black that is excellent in moisture resistance, light resistance and ozone gas resistance, and can be further easily synthesized and produced at low cost. |