Polyester fabrics are one of the most commonly used textiles in the industry. The low dyeability and surface colors after dyeing of polyester fabrics are two of the most serious problems with these fabrics, and researchers have made numerous attempts to solve these issues. The most common procedure for removing surface dye is reduction clearing, which has polluted the environment because of the insertion of sodium hydroxide and sodium hydrosulfite into wastewater. Therefore, it is preferable that dry processes take the place of wet processes. So far, ozonation and plasma methods have been used to remove surface dye from the surface of polyester fabric. For the first time, a combination of plasma and ozone (dry methods) approaches was applied simultaneously to increase surface dye removal in this investigation. Abrasion fastness, washing fastness, strength, surface reflection, and scanning electron microscopy tests were used to eva‎luate the performance of the methods used in this study. In comparison to the conventional method (reduction clearing), using atmospheric plasma to remove surface dyes increased the abrasion and washing fastness of the polyester sample by 30%. On the other hand, the sample's strength has decreased by about 9% due to the corrosion process in plasma method. The combined plasma-ozone method has shown to be as effective as the plasma and ozone methods individually. Finally, the atmospheric plasma method has been shown to be effective in the removal of surface dyes from polyester fabric. Because of the plasma method's eco-friendliness and industrial aspect, it can be cited as a viable alternative to reduction clearing.

اكبر خدامي، هاله خليلي

محمدعلي الشريف

حسين ايزدان، فرزانه علي حسيني