| 摘要 |
<p>PURPOSE:To provide an ink which has a sufficient hiding power, enables writing or drawing of distinct characters or pictures even on a dark object, and gives drawn lines erasable with water without fail. CONSTITUTION:When lines are drawn on an object using an ink compsn. comprising a water-sol. white powder finely dispersed in a hydrophilic org. solvent having a low strength of dissolving the powder, the solvent evaporates rapidly and the powder remains on the object to form the lines. When the lines are wiped with a cloth soaked with water, the white powder dissolves into water and the lines are erased.</p> |
