WATER-BASED INK COMPOSITION FOR MARKING PEN, AND MARKING PEN HAVING THE SAME BUILT-IN

摘要

PROBLEM TO BE SOLVED: To provide a water-based ink composition for a marking pen that keeps a stable dispersion state in ink for a long time and continuously achieves good writing performance without causing defective calligraphy, even when applying water-based ink having a pigment as a color agent to a marking pen, and to provide a marking pen having the same built-in.;SOLUTION: There is provided a water-based ink composition for a marking pen that contains water, a pigment, fermentative cellulose, and a crosslinking agent for crosslinking the pigment and the fermentative cellulose. A marking pen having the water-based ink composition for a marking pen built-in is also provided. The water-based ink composition for a marking pen keeps a stable dispersion state in ink for a long time and continuously achieves good writing performance without causing defective calligraphy.;COPYRIGHT: (C)2015,JPO&INPIT