Abstract
This study aims to examine the acceleration of water absorption time in natural silk fabric irradiated with negative and positive corona plasma discharge generation at atmospheric pressure. The point-to-plane electrode configuration is made by one hundred point electrodes, equally distributed, in a 10 x 10 square plane and a plane electrode made of copper. The positive plasma discharge is generated by connecting the point electrodes to a high voltage power supply. In contrast, the negative plasma discharge is generated by connecting the power supply to the plane electrode. During the plasma discharge irradiation, the dyeing natural silk (Bombyx Mori) samples are placed on the plane electrode with varying irradiation duration and electrode spacing. Identification of irradiation effects on the fabrics was made using water drop test and SEM (Scanning Electron Microscope). Increasing the electrode’s gap improves the stability of the corona discharge by reducing the discharge current. Moreover, longer irradiation time results in faster water absorption due to a significant interaction between the torn fabrics and water, especially at a broader electrode gap. In conclusion, both positive and negative corona plasma discharges irradiation alters water absorption time, with longer irradiation time results in faster water absorption by samples.
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