| 摘要 |
<p>PURPOSE:The titled composition, obtained by further containing an unsaturated fatty acid salt in an ink composition consisting of a pigment, dispersing agent and aqueous medium, having smooth feeding of ink in starting to write and capable of smooth writing without skipping of describing lines even in continuous writing. CONSTITUTION:A composition obtained by further containing a salt, preferably water-soluble salt of an unsaturated fatty acid, preferably 9-39C, particularly oleic acid, linoleic acid, linolenic acid or ricinoleic acid in an ink composition consisting of a pigment, preferably carbon black, a dispersing agent, preferably polymer dispersing agent and an aqueous medium.</p> |
