| 摘要 |
<p>PURPOSE:To obtain an ink which is excellent in stability of delivery, has high viscosity giving a high-quality print with little blur, very quickly fixes on printing paper, and exhibits no overlap of color even in color printing. CONSTITUTION:This ink contains a colorant for developing color, a wetting agent for preventing a nozzle tip from drying, a resistivity-adjusting agent for imparting conductivity to the ink, a solvent, and a salt of an acrylic acid- maleic acid copolymer represented by the formula: H-(CHCOOM- CHCOOM)a-(CH2CHCOOM)b-(CHCOOM-CHCOOM)c-H (wherein M is H and/or an alkali metal and/or NH4; and a, b, and c are integers satisfying the relations: 0<a+c<=78 and (0<=b<=15).</p> |
