| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous pigment ink composition excellent in dry resistance available for writing instrument, recorders, printers and the like, and having no crystal deposition.SOLUTION: An aqueous pigment ink composition contains at least a pigment, a styrene acrylic acid resin and/or a styrene maleic acid resin and trehalose, paraxylene glycol and water. |
