Acacia hybrid trees aged 15 years were harvested and cut into samples consisting of
sapwood and heartwood taken from the bottom, middle and top portions of the tree. The
wood samples were thermally modified using temperatures of 180, 200 and 220° C, and
treatment times of 30, 60 and 90 min. The colour changes in the sapwood and heartwood
were measured using a chroma meter and the results presented according to the CIE L* a*
b* colour coordinate system. The results showed that temperature at a certain treatment time …

Acacia hybrid trees aged 15 years were harvested and cut into samples consisting of
sapwood and heartwood taken from the bottom, middle and top portions of the tree. The
wood samples were thermally modified using temperatures of 180, 200 and 220 C, and
treatment times of 30, 60 and 90 min. The colour changes in the sapwood and heartwood
were measured using a chroma meter and the results presented according to the CIE L* a*
b* colour coordinate system. The results showed that temperature at a certain treatment time …