| 摘要 |
<p>The invention relates to a pressure-sensitive copying material comprising an electron-accepting color-developing agent and a solution of an electron-donating, color-forming agent capable of forming color when brought into contact with said color-developing agent in a solvent, wherein a solvent composition composed of (a) 5 to 50 vol % of a hydrogenated low polymer of propylene and/or a butene and (b) 50 to 95 vol % of a bicyclic aromatic hydrocarbon and/or chlorinated paraffin oil having a viscosity at 40°C of 3cSt or more is used as the solvent for the color-forming agent solution, and an aromatic carboxylic acid or its polymer, metal salt thereof, polyvalent metal carboxylate-modified terpene phenol resin or a derivative thereof is used as the color-developing agent.</p> |
