| 摘要 |
<p>The present invention provides a dyestuff good at the clearness of color tone, light resistance, indoor discoloring and fading property, solubility, storage stability, and the like, when the dyestuff is used as a water soluble dyestuff for inkjet recording. That is, a metal chelated dyestuff for inkjet recording which is a water soluble azo metal chelated compound formed from an azo compound represented by the following general formula (1) and a metal element: <CHEM> (where general formula (1) represents an azo dyestuff compound having at least one or more hydrophilic groups in a molecule, X1 represents plural atoms required for forming at least one 5- to 7-membered heterocyclic ring, the heterocyclic ring containing X1 being a heterocyclic ring other than a pyridine ring. The heterocyclic ring containing X1 may have substituent(s) on the heterocyclic ring, the substituent(s) on the heterocyclic ring may form a condensed ring through further condensation. The condensed heterocyclic ring containing X1 may be substituted. Ar1 represents naphthyl group having a chelating group.)</p> |
