Abstract: A basic part is produced which has a three-dimensionally structured surface; then the surface of the basic part is covered by means of a resin layer in such a manner that all elevations of the three-dimensionally structured surface are covered; subsequently, the resin layer is ground off to such an extent that the tips of the elevations of the surface are also partially ground; and finally at least the ground-off surface is sealed by means of a clear coating.

Abstract: A process brings out a high contrast in natural grain of a naturally pale wood via infrared irradiation having a wavelength which is as long as possible. This infrared radiation can come from a conventional infrared emitter or, more preferably, from a carbon dioxide laser. Due to the contact-free heating near the surface which is effective in a stagnant ambient atmosphere, the new wood part of the grain is browned, while the harder old wood part remains essentially unbrowned. This causes the natural grain of the wood to stand out in contrast. Due to the contact-free and turbulence-free mode of operation of the heating, the grain pattern produced is uniform. Any scratches or chatter marks in the wood are simply covered over and remain invisible.