| Autor: |
Fan, Fei, Wu, Xunxin, Wen, Jiaxiang, Lin, Gengyu, Lin, Jiawen, Yin, Qiuting |
| Zdroj: |
Fibers & Polymers; Oct2023, Vol. 24 Issue 10, p3611-3625, 15p |
| Abstrakt: |
This paper explores the effects of a dielectric barrier discharge atmospheric pressure air plasma and citric acid (CA) pretreatment on dyeing gray mulberry silk plain fabrics with a cortex phellodendri plant powder dyestuff. The atmospheric air plasma treatment formed new hydrophilic groups, such as C–O, O–C=O, and C–NH2, on the surface of the fabric. The relative contents of the C–O (C–N) and O–C=O groups indicated that the efficiency of bonding the hydrophilic groups to the fabric increased in the order of citric acid alone < collaborative treatment in different orders < original < atmospheric air plasma alone. X-ray photoelectron spectroscopy (XPS) showed that the relative content of C–O (C–N)/C = O was the highest after 9 treatments at 360 W. Erosion pits and grooves with widths of 0.5–3 µm appeared on the surface after plasma treatment. The surface of the silk fabric was negatively charged, and it interacted electrostatically, adsorbed and combined with the cationic dye. The samples were dyed at 60 °C, with a pH 8, a 60% (owf) dye concentration, a bath ratio of 1:40, and a 60 min dyeing time. After soaping, the K/S value had increased from 8.05 to 13.51, and the washing color fastness rating was 4–5. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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