Method against counterfeiting and falsification of documents, and document numbered or custom against falsification and counterfeiting

摘要

The method against counterfeiting and falsification of documents, and document numbered or custom against falsification and counterfeiting ".A method to customize security documents, particularly banknotes, checks and documents representing a value in general.The method is appropriate to prevent counterfeiting and amendment and comprises the steps that consist of superposed at least two materials (10,20) with different resistance to laser and being arranged adjacent with each other on a substrate (30) having a higher resistance to laser than each of the superposed materials (10,20) and treating the superposed materials (10, 20) with a laser beam that is guided along a preset path way modify sublimation a part of each material superposed (10.20) by subjecting the same to laser beam without substantially burn or sublimate the substrate (30).