In this study wet and dried black locust (Robiniapseudoacacia L.) wood samples were steamed under laboratory conditions to determine the parameters for proper color changes. The color change was evaluated by objective color measurement and color data were presented in CIE L*a*b* color co-ordinate system. Through the change of steaming parameters (steaming time and temperature), a large diversity of colors for black locust wood can be created from greenish yellow to dark brown. This change is highly sensitive to the temperature and duration of the treatment. If a specific color is desired, the proper process parameters have to be set and monitored carefully. The color change of dried wood material is slower at the beginning of the steaming than that of wet wood at low temperature. The color change of dry and wet black locust samples are similar above 95°C, therefore the steaming of dried black locust wood is recommended above this temperature value. Experiments refute that the robinetin plays the main roll in the creation of brown color during steaming.
|Number of pages||8|
|Publication status||Published - aug. 9 2010|
ASJC Scopus subject areas
- Materials Science(all)