| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition for aqueous ball point pens which shows a good followability at writing, allows no ink leakage immediately after writing, overcomes conventional disadvantages such as the splitting of the drawn lines or the problems concerning the water resistance, the stains caused by spots formed when writing is begun, long-term stability disturbed by the sedimentation of the dyestuff ink itself, etc., and may be housed in a simple direct liquid type ink-supplying structure as oil ball point pens. SOLUTION: The ink composition for aqueous ball point pens contains at least a phosphoric esterified starch, a colorant and an aqueous medium. |
