International Journal of Interdisciplinary Research
Table 1 Color changes of wool fabrics dyed with spent coffee extract
Mordant concentration (wt%) | L* | a* | b* | ΔE |
|---|---|---|---|---|
Pristine | 86.54 | − 0.585 | 12.68 | – |
0.00 | 49.29 | 9.69 | 26.82 | 41.15 |
0.25 | 48.77 | 9.95 | 26.83 | 41.68 |
0.50 | 48.40 | 9.93 | 26.87 | 42.03 |
1.00 | 50.16 | 9.82 | 26.92 | 40.43 |
2.00 | 50.50 | 9.82 | 26.86 | 40.10 |