Research Article
Dyeing of Polyester and Polyamide Synthetic Fabrics with Natural Dyes Using Ecofriendly Technique
Table 3
Effect of exposure time on washing fastness of nylon dyed samples.
| Exposure time (min) | Curcumin dye | Saffron dye | Staining | Alteration | Staining | Alteration |
| 0 (untreated) | 3 | 4 | 5 | 4 | 5 | 3 | 4 | 5 | 4 | 20 | 3/4 | 4/5 | 5 | 4/5 | 50 | 3/4 | 4/5 | 5 | 4/5 | 110 | 3/4 | 4/5 | 5 | 4/5 | 120 | 3/4 | 4/5 | 5 | 4/5 |
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