| 摘要 |
Bleed control and fast dry times are achieved in aqueous pigment dispersionbased ink-jet ink compositions by formulating the ink compositions to comprise at least one aqueous pigment dispersion and a microemulsion comprising at least one water-insoluble organic compound, at least one hydrotropic amphiphile, and water. The hydrotropic amphiphile is present in the microemulsion in an amount sufficient to solubi-lize the water-insoluble organic compound in water. By employing a microemulsion-based vehicle formulated in accordance with the invention, the present aqueous pig-ment dispersion-based ink-jet ink compositions are bleed-alleviated and fast-drying when printed onto a print media so that the throughput of an ink-jet printer may be increased.
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