Table 1.
Total color changes of extractive-free walnut veneer exposed to UV light
Treatment condition
Total UV dose (MJ/m
2
)
Color components
ΔE
*
L
*
a
*
b
*
No treatment
42
11.4
-9.6
4.9
-0.2
Alcohol-benzene
42
8.8
1.6
5.2
6.8
84
9.2
-0.4
5.9
7.0