International Journal of Interdisciplinary Research
Table 2 Colorfastness of wool fabrics dyed with spent coffee extract
Mordant concentration (wt%) | Color change to washing (grade) | Color change to light (grade) |
|---|---|---|
0.00 | 4–5 | 2–3 |
0.25 | 4–5 | 3 |
0.50 | 4–5 | 3 |
1.00 | 4–5 | 3–4 |
2.00 | 4–5 | 3–4 |