| 摘要 |
<p>The invention relates to a method and device for applying electric discharges to sheets in order to perforate same. The method comprises the impregnation or deposition of substances, such as paints, dyes, colouring agents and substances having different degrees of hydrophobicity, in/on the sheets during electric perforation. The perforation device comprises electric perforation means, including a liquid or gel as a conduction medium for the electric discharge and as supports for the sheets, as well as a medium for dissolving or mixing salts, paints, dyes, colouring agents and substances having different degrees of hydrophobicity.</p> |
