Effect of Hot Water Treatment on Color Fastness and Surface of Reconstituted Bamboo Lumber

Bamboo bundles were hot water treated at 120, 140, 160℃ with duration of 60 minutes, and at 160℃ with duration of 30, 60 and 90 minutes, and then treated bundles were pressed to reconstituted bamboo lumber(RBL). Color fastness of RBL was tested by climate chamber, and surface of RBL was observed by SEM. The results showed that the color fastness of RBL increased with temperature, the minimum color difference under 160℃ was 9.1, and treatment duration had no evident effect on color fastness. SEM demonstrated that surface of treated RBL was damaged compared with no treatment.