| 摘要 |
PURPOSE:To make it unnecessary to use the mold which is produced in complicated process and is expensive and duplicate a hologram in a short time by irradiation of high-energy ultraviolet rays or electron beam, by filling a resin liquid between the hologram and a film or a sheet-shaped or plate-shaped supporting material and irradiating it with ultraviolet rays or the electron beam. CONSTITUTION:A relief hologram is produced on a dry plate provided with a photoresist layer, and the resin liquid which is hardened by ultraviolet rays is applied to the mold surface of the obtained relief hologram by the screen printing method, and a polyester sheet is laminated on this mold surface, and the resin liquid is irradiated with ultraviolet rays from the polyester sheet side by an extra-high voltage mercury-arc lamp to harden the resin liquid, and a resin mold having an inverted shape of the rugged shape of the relief hologram is obtained. The resin liquid and a polyester sheet are coated and covered respectively on the surface of this resin mold, and the resin mold is irradiated with ultraviolet rays from the polyester sheet side to harden the resin liquid, and the resin mold is peeled, thus duplicating the relief hologram. |
