| 摘要 |
<p>PURPOSE:To provide an ink composition for a ball-point pen capable of preventing the abrasion of a ball seat and being discharged smoothly, which comprises a dye, a resin, water, a metal salt and/or amine salt of N- acylsarcosine. CONSTITUTION:A desired ink composition for a ball-point pen can be obtained by adding 0.5-5wt% of a metal salt and/or amine salt of N-acylsarcosine of the given formula (wherein R is an alkyl) to an ink composition for a ball-point pen having a viscosity of 500-2,000cps and comprising a dye, a resin, water and a water-soluble organic solvent.</p> |
