A METHOD OF PRODUCING EMBOSSE, LIGHT-DIFFRACTING PATTERNS

摘要

A method of producing on a substrate surface (P) predetermined, multi-colour diffraction/refraction patterns or hologram (L), where the said method comprises: applying a radiation-curable adhesive coating (A) between a flexible film master (I) and the substrate surface; pressing the flexible film master and the substrate together with the coating (A) interposed in order to cause the surface of the coating adjacent the film master to become impressed with a faithful reproduction of the predetermined pattern (L) of the film master; radiation-curing the adhesive coating in order to set the impressed pattern (L) in the coating surface, while integrally bonding the coating to the substrate surface; and stripping the resulting integral, patterned, coated substrate from the flexible film master. The film master may also be metallised, in which case the metal layer is adhered to the substrate in order to generate additional decorative effects.