| 摘要 |
An ink composition including water as the principal solvent, a pigment dispersion or dye, and a polyoxyalkylenated polyfluoro-isopropylidene glycerol compound. The composition may be formed by using a pigment dispersion having a pigment and a pigment dispersant. The pigment dispersant may be a derivative of a polyuronic acid in which a hydrophobic polymer is covalently attached to the reducing terminus of the polyuronic acid. The polyuronic acid may be composed primarily of 1,4-linked polygalacturonic acid, polyguluronic acid, polyiduronic acid, or mixed polymers thereof.
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