| 摘要 |
<p>A liquid ink composition comprising at least one water soluble dye, water dissolving said dye, a volatile base bringing said ink to basic pH, and a minor amount of a surfactant, said surfactant being a tertiary amine having two polyethoxylate substituents, with the number of ethoxy groups being in the range of 5 to 25, and a third substituent of a straight chain alkyl, an ester, a fat or a fatty acid. The static surface tension is less than 40 dynes/cm while the dynamic surface tension is about 65 dynes/cm. Satellites and splatter in thermal drop on demand printing are greatly reduced, and drop misdirection is reduced.</p> |
