| 摘要 |
<p>PURPOSE:To provide the titled writing ink giving a fringed pattern by single writing process, by mixing a color dye which infiltrates and diffuses in a paper sheet, and colored insoluble particles having different color from the above dye and no infiltrating and diffusing tendency in the paper sheet. CONSTITUTION:The objective ink is prepared by mixing (A) a solution of a color dye which infiltrates and diffuses in a paper sheet (preferably a liquid obtained by mixing an oil-soluble dye or an alcohol-soluble dye with a synthetic resin, and dissolving the mixture in a solvent such as xylol) with (B) insoluble color fine particles which is different from the above dye in color and does not infiltrate or diffuse in said paper sheet (preferably metallic powder such as gold- colored powder, silver-colored powder, etc., or metallic foil).</p> |
