| 摘要 |
PURPOSE:To cause a molding to restore its linearity or to warp inversely, by applying a heat-shrinkable plastic layer on the undersurface of a decorative layer to form a substrate, and allowing a molding to be heated by the heat generated by the curing of a liquid plastic. CONSTITUTION:A substrate 1 comprises a decorative layer 2 and a heat-shrinkable plastic layer 3 attached to the undersurface of the layer 2. The substrate sheet 1 is cut or punched into a prescribed shape, and is placed on a flat plate. Then a liquid plastic 4 is cast on the decorative layer 2. The cast liquid plastic 4 and the substrate 1 are heated to facilitate the polymerization reaction and the plastic 4 is cured. When the cast plastic 4 is molded and shrinks, the heat- shrinkable plastic layer 3 shrinks due to the heat, and in this case this shrinking is offset by the shrinking force of the cast plastic 4, so that the linearity of the molded molding 10 is kept. |
