| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inkjet recording aqueous ink containing a self-dispersion pigment, being excellent in redispersibility, and providing a high optical density (OD value). <P>SOLUTION: The inkjet recording aqueous ink contains a colorant, water and a water-soluble organic solvent, wherein: the colorant contains a self-dispersion pigment modified with a phosphate group; the aqueous ink contains a sugar alcohol and a cationic surfactant; and the blend amount of the cationic surfactant to the whole amount of the aqueous ink is 0.005 wt.% to 0.05 wt.%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
