Abstract
This study aim to pursue eco-friendly fabric dyeing using food and beverage industry waste. The nylon fabrics were dyed with a combination of onion shell and coffee sludge extracts. The color characteristics and color fastness of the combination-dyed nylon fabrics were analyzed by color difference according to the combination dyeing sequence and the mordant(aluminum and iron). results indicated that the nylon fabric color differed depending on the combination dyeing sequence It was observed that the fabric dyed first with onion shell extract and then with coffee sludge extract sequentially produced a bright yellow-red color, while the fabric dyed with coffee sludge extract first and then with onion shell extract yielded a dull yellow color. The color of the nylon fabrics dyed with onion shell extract first and followed by coffee sludge extract was slightly different depending on the mordant type. However, no difference was observed in the color of nylon fabrics dyed with coffee sludge extract first and then with onion shells according to the mordant type. The color fastness to washing, dry cleaning, perspiration, and rubbing of the combination-dyed nylon fabrics with the onion shell and coffee sludge extracts showed 4–5 grade, while the color fastness to light showed 1 or 1–2 grade.
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