Influence of Wood Surface Color on the Performance of Luminescent Pigments
2016
Kaestner, Dominik | Petutschnigg, Alexander | Schnabel, Thomas | llly, Andreas | Taylor, Adam
Luminescent pigments can be incorporated into coatings for various applications, including safety signage, that provide illuminated directions when lighting systems fail. The influence of the brightness of a solid wood substrate on the persistence performance of luminescent pigments was analyzed. Three species were tested: maple (Acer pseudoplatanus; a brightly colored wood), steamed beech (Fagus sylvatica; a medium-colored wood), and walnut heartwood (Juglans regia; a dark-colored wood). The results show that the surface color has a major influence on the performance of the pigments, when applied in a clear coating. Other significant factors for the afterglowing effect are the amount of pigment and the time and intensity of light during the charging process.
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