Ziwen Zhou

Sep 8, 2023 | mdpi.com | Yiqing QI |Ziwen Zhou |Ran Xu |Yuting Dong

3. Results and Discussion 3.1. Effect of Ultrasonic Power on Dye Uptake and Color Difference in Chinese FirThe dyeing time (7 h), dyeing temperature (90 °C), and dye concentration (15%) were kept constant, and different ultrasonic powers (0, 100 W, 180 W, 260 W, 340 W) were used to dye the Chinese fir samples. Physical images of the Chinese fir samples before and after staining are shown in Figure 2.