method to protect against counterfeiting, to ensure the authenticity and preimprimees customize leaves

摘要

method to protect against counterfeiting, to ensure the authenticity and customize preimprimes leaves.the method can protect or customize the leaves preimprimees printing microgravures on all sides printed sheets or some of them by a process ofe can preimprimees embossing on the leaf has a temperature higher than the softening point of substances used for the printing on and followed by a stageby cooling the microgravures for holograms or diffraction diagrams or images or words