Kim Thu Nguyen Thi, Vu Thi Hong Khanh, Vu Thi Nguyen, Vu Manh Hai
School of Textile-Leather and Fashion (STLF)-Hanoi University of Science and Technology (HUST), No. 1, Dai Co Viet, Hai Ba Trung, Hanoi 11615, Vietnam.
Hanoi Industrial Textile Garment University, Le Chi, Gia Lam, Hanoi 12411, Vietnam.
Polymers (Basel). 2021 Apr 29;13(9):1434. doi: 10.3390/polym13091434.
This study consists of two parts. In the first, the woven polyester fabric, after washing to remove lubricant oils, was treated with the dielectric barrier discharge (DBD) plasma at the short plasma exposure time (from 15 to 90 s). The effect of the plasma exposure time on the activation of the polyester fabric was assessed by the wicking height of the samples. The results show that the wicking height in the warp direction of the plasma-treated samples improved but was virtually unchanged in the weft direction. Meanwhile, although the tensile strength in the warp direction of the fabric was virtually unaffected despite the plasma treatment time up to 90 s, in the weft direction it increased slightly with the plasma treatment time. Scanning Electron Microscope (SEM) images and the X-ray Photoelectron Spectroscopy (XPS) spectra of the samples before and after the plasma treatment were used to explain the nature of these phenomena. Based on the results of the first part, in the second part, two levels of the plasma treatment time (30 and 60 s) were selected to study their effect on the polyester fabric dyeability with disperse dyes. The color strength (K/S) values of the dyed samples were used to evaluate the dyeability of the fabric. The SEM images of the dyed samples also showed the difference in the dyeability between the plasma-treated and untreated samples. A new feature of this study is the DBD plasma treatment condition for polyester fabrics. The first is the use of DBD plasma in air (no addition of gas). Second is the very short plasma treatment time (only 15 to 90 s); this condition will be very favorable for the deployment on an industrial scale.
本研究由两部分组成。第一部分，将涤沦机织物洗涤以去除润滑油后，在短等离子体暴露时间（15至90秒）下用介质阻挡放电（DBD）等离子体进行处理。通过样品的芯吸高度评估等离子体暴露时间对聚酯织物活化的影响。结果表明，经等离子体处理的样品在经向的芯吸高度有所提高，但在纬向几乎没有变化。同时，尽管织物经向的拉伸强度在长达90秒的等离子体处理时间内几乎未受影响，但在纬向，它随等离子体处理时间略有增加。利用等离子体处理前后样品的扫描电子显微镜（SEM）图像和X射线光电子能谱（XPS）光谱来解释这些现象的本质。基于第一部分的结果，在第二部分中，选择了两个等离子体处理时间水平（30秒和60秒）来研究它们对聚酯织物用分散染料染色性能的影响。用染色样品的色强度（K/S）值来评估织物的染色性能。染色样品的SEM图像也显示了经等离子体处理和未处理样品在染色性能上的差异。本研究的一个新特点是聚酯织物的DBD等离子体处理条件。首先是在空气中使用DBD等离子体（不添加气体）。其次是非常短的等离子体处理时间（仅15至90秒）；这种条件将非常有利于在工业规模上的应用。
