| 摘要 |
<p>PURPOSE:To reduce the possibility of drying of the printing surface of a porous printing body by mixing an ink containing a lowly volatile solvent, a coloring agent and a resin with a solution of a butyral resin and/or a cellulosic resin in a volatile solvent. CONSTITUTION:A lowly volatile ink (A) is obtained by mixing a lowly volatile solvent, such as castor oil, a coloring agent comprising a pigment and/or a dye, such as methylviolet, and a resin soluble in the above solvent, such as a rosin-maleic acid resin. A volatile resin solution (B) is obtained by dissolving a butyral resin and/or a cellulosic resin in a volatile solvent such as ethyl acetate. The title ink is obtained by mixing the components (A) and (B).</p> |
