This thesis investigates the use of UV, IR and CO2 lasers to remove dry films of various coatings from the surface of beech and oak wood. The aim of the study was to find suitable parameters for the effective removal of coatings and to evaluate the quality of the wood surface after laser treatment using digital and confocal microscopic analyses. The results showed that the choice of laser, its power and the number of passes is key to successfully removing coatings while ensuring adequate quality of the substrate for further processing after removal. With the UV laser, the coatings could be removed more precisely without damaging the wood substrate. The IR laser proved to be less effective in removing transparent coatings, while it was effective on black pigmented coating even at low power. The CO2 laser was able to remove most coatings but was more likely to cause localized burns on the substrate. Laser removal of coatings on beech wood was more effective, and the surface of the wood was smoother after the coating was removed. We were also able to prove that the type of coating or coating system also has an influence on the efficiency of the laser coating removal. The transparent solvent-borne transparent polyurethane coating was removed more evenly from the wood surface than the water-borne acrylic coating. The research results form an important basis for the further optimization of the laser coating removal process.
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