| 摘要 |
<p>The present invention relates to [1] an ink-jet printing method including the steps of applying an ink (A) having a static surface tension of from 23 to 70 mN/m and containing a poly(N-acylalkylene imine)-modified silicone and a cationic polymer onto a recording medium, and then applying by ink-jet printing, a water-based ink (B) onto the recording medium; [2] a recording paper for ink-jet printing which is obtainable by applying an ink (A) having a static surface tension of from 23 to 70 mN/m and containing a poly(N-acylalkylene imine)-modified silicone and a cationic polymer onto a recording medium; and [3] a water-based ink set including an ink (A) having a static surface tension of from 23 to 70 mN/m and containing a poly(N-acylalkylene imine)-modified silicone and a cationic polymer, and a water-based ink (B) containing an anionic colorant. In accordance with the present invention, even when printed on a plain paper, the resulting printed images have a high optical density while forming ink dots having a round shape upon printing, and can exhibit an excellent image clarity and a high image quality without occurrence of severe strike-through.</p> |
