| 摘要 |
<p>An improved system for producing stable, water-fast, and color bleed-resistant printed images. The system involves two main components. The first component consists of an ink composition having at least one dye material which includes at least one carboxyl group. The second component involves a salt solution containing at least one unbound multivalent (e.g. divalent) metal cation (e.g. Ca ©& ©& , Cu ©& ©& , Ni ©& ©& , Mg ©& ©& , Zn ©& ©& , and Ba ©& ©& ). Other cations (e.g. Al ©& ©& ©& , Fe ©& ©& ©& , and Cr ©& ©& ©& ) may also be used. Exemplary anions coupled with these cations may include Cl DIVIDED , NO<7> DIVIDED , I DIVIDED , Br DIVIDED , ClO<7> DIVIDED ,and CH<7>COO DIVIDED . The solution will have a preferred salt concentration level of about 5 - 40% by weight. The solution is then applied to a substrate in a variety of ways including application using thermal inkjet technology. Thereafter or simultaneously therewith, the ink composition is applied to the substrate. As a result, stable, water-fast images are produced. <IMAGE></p> |
