Official Journal of the Japan Wood Research Society
Sample | Bleaching parameters | Bleaching colour | ||||
|---|---|---|---|---|---|---|
Time | H2O2% | L* | a* | b* | ΔE* | |
ULB (CONTROL) | – | – | 38.7 (0.10) | + 1.23 (0.15) | + 1.13 (0.15) | 0 |
BLB1 | 12 | 20 | 50.33G (0.32) | + 7.03B (0.21) | + 14.9 (0.17) | 28.61 |
BLB2 | 12 | 40 | 60.07E (0.15) | + 8.37A (0.06) | + 26.6 (0.20) | 34.01 |
BLB3 | 12 | 60 | 68.33C (0.40) | + 1.57D (0.29) | + 27.8 (0.26) | 39.87 |
BLB4 | 12 | 80 | 70.40B (0.20) | − 0.7E (0.10) | + 22.83 (0.15) | 38.46 |
BLB5 | 24 | 20 | 51.23F (0.15) | + 7.53B (0.06) | + 16.7 (0.36) | 20.96 |
BLB6 | 24 | 40 | 66.07D (0.49) | + 9.2A (0.10) | + 28.2 (0.30) | 39.31 |
BLB7 | 24 | 60 | 71.7A (0.96) | + 2.4C (0.20) | + 28.8 (0.30) | 43.08 |
BLB8 | 24 | 80 | 72.5A (0.66) | − 1.2F (0.10) | + 25.23 (0.84) | 41.58 |