INVESTIGATION OF THE EFFECT OF LASER RADIATION ON THE MORPHOLOGY AND COLOUR OF BIRCH PLYWOOD

Abstract

CO2 laser is commonly used for the production of the advertising material onto plywood, yet the final result of the product depends on the appropriate selection of material, its morphological properties, and technological parameters of material processing. As a result, the change in colour, the depth of the burnt plywood surface due to laser exposure and surface morphology is different. The paper presents the results obtained when the birch plywood is exposed to the CO2  laser, which renders a specific colour change. The paper also discusses how morphological and roughness parameters influence the colour changes and which material processing mode is the best to achieve a desirable result.