| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-based ink for ball point pen having high non-dry property. SOLUTION: This water-bases ink for ball point pen comprises at least a coloring agent and water and a polyoxyethylenestearyl ester represented by formula (I) C17H35COO(CH2CH2O)nH [wherein (n) is 30-60] and compounded in an amount of 0.3-3 wt.% based on the total amount of ink. |
