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International Journal of Interdisciplinary Research

Table 2 Colorfastness of wool fabrics dyed with spent coffee extract

From: Effects of tannin mordanting on coloring and functionalities of wool fabrics dyed with spent coffee grounds

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