摘要 |
<p>PURPOSE:To obtain the subject compsn. which has such an excellent lubricity as to reduce the abrasion of a ball holder, and is excellent in durability and feeling during writing. CONSTITUTION:The objective water-base ink compsn. contains a water-sol. dye or a water-dispersible pigment, a water-sol. org. solvent, water, and at least one mono- or diamide of a thiodicarboxylic acid represented by the general formula: XOCRSRCONH2 (wherein X is OH or NH2; and R is a single bond, 1-6C alkylene, alkenylene, or phenylene).</p> |