摘要 |
PROBLEM TO BE SOLVED: To provide an O/W type emulsion ink composition for ball-point pens, which has excellent preservation stability of emulsion and does not allow dense handwriting or sparse handwriting to be generated.SOLUTION: The O/W type emulsion ink composition for ball-point pens is obtained by emulsifying/dispersing an oil phase, which, at the least, contains: an organic solvent that is hardly soluble in water and has an OH group in one molecule thereof; and polypropylene glycol and/or polyoxypropylene glyceryl ether, in a water phase containing water at the least by using a surfactant. |