Bleed alleviated aqueous pigment dispersion-based ink-jet...

Details Bleed alleviated aqueous pigment dispersion-based ink-jet... Bleed alleviated aqueous pigment dispersion-based ink-jet...

C - Chemistry, Metallurgy

09

D

C09D 11/02 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2198287

Bleed control and fast dry times are achieved in aqueous pigment dispersion- based 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 solubilize the water-insoluble organic compound in water. By employing a microemulsion- based vehicle formulated in accordance with the invention, the present aqueous pigment 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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