Study on the Structure and Antioxidant Properties of Seamless Knitted Fabrics with Antioxidant Fibers

The antioxidant properties of seamless knitted fabrics with antioxidant fibers determine their antioxidant effects. In this paper, we used five kinds of raw yarn materials, namely mint nylon filament, tea carbon nylon filament, coffee carbon nylon filament, collagen nylon filament, and nylon filament, and chose three kinds of fabric microstructure, namely weft flat knit, 1+1 false rib, and 1+3 false rib, to obtain 15 seamless knitted samples with antioxidant fiber by establishing the sample scheme through the full factorial experimental method and weaving them on the seamless loom. DPPH and ABTS free radical scavenging tests were performed on the 15 seamless knitted samples of antioxidant fiber according to the standards, and the results showed that, in terms of the type of yarns, the antioxidant performance of tea carbon nylon filament was the best, followed by coffee carbon nylon filament and mint nylon filament, and the antioxidant performances of collagen nylon and ordinary nylon yarn were relatively weak; in terms of the fabric structure, the 1+1 false rib structure was slightly better than the weft flat knit structure, while the 1+3 false rib structure was relatively poor. Overall, the antioxidant performance of sample No. 5, with the 1+1 false rib structure and tea carbon nylon thread, was the best.