| 摘要 |
PURPOSE:To provide self-coloring type no-carbon pressure-sensitive copying sheet, which is excellent in printing water resistance and the ground of which scarcely discolors by light. CONSTITUTION:In the self-coloring type no-carbon pressure-sensitive copying sheet, in which coating layer prepared by laminating electron donating color former-containing microcapsules and electron acceptable developer on support under the condition being mixed into a single ply or separately, the coating layer contains polycondensation product, which is obtained by reacting urea- based compound, glyoxal and acrylamide. The preferable urea-based compound is urea or cyclic urea. |
