| 摘要 |
<p>PURPOSE:To provide a water-base ink composed of a colorant, water and a specific copolymer, having excellent dry resistance of pen tip and dryability of written mark and suitable for recorder, stamp, ink jet recording, etc. CONSTITUTION:The objective water-base ink is composed at least of a colorant (preferably acid dye, direct dye or food dye), water and a copolymer of formula.</p> |
