| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a black ink composition containing a pigment and a dye, having high optical density and light resistance, and improved in gas resistance. <P>SOLUTION: The black ink composition comprises carbon black, a black dye and water, wherein the black dye is a compound represented by general formula(I)( wherein, T is an azo group; Q is a 1,8-dihydronaphthyl group optionally substituted and optionally containing a metal atom; and L is a bivalent organic linkage group ). <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
