INK COMPOSITION FOR WRITING TOOL AND PIGMENT DISPERSION FOR WRITING TOOL

摘要

PROBLEM TO BE SOLVED: To obtain a pigment ink composition for a writing tool which exhibits a smooth ink flow equal to that of a dye ink and provides a smooth writing feeling, and a pigment dispersion suitable for preparing the pigment ink composition. SOLUTION: The ink composition for a writing tool comprises a pigment having a powder resistance of at least 5Ωcm. COPYRIGHT: (C)2003,JPO