| 摘要 |
Water-insoluble dyes are formulated in a microemulsion-based ink, which have true waterfastness, are non-threading, and are bleed-alleviated. The ink-jet inks have a formula comprising: (a) about 0.05 to 0.75 wt% of a high molecular weight colloid; (b) about 0.1 to 40 wt% of at least two surfactants, comprising at least one surfactant and at least one co-surfactant; (c) about 0.5 to 20 wt% of at least one co-solvent; (d) about 0.1 to 5 wt% of at least one water-insoluble dye; (e) about 0.1 to 20 wt% of an oil; and (f) the balance water. The inks of the invention form a stable microemulsion, which results in bleed alleviation, excellent line definition without threading, and excellent print quality. |
