Knitting parameters effect of coffee carbon polyamide and graphene polyamide far-infrared knits on human skin microcirculation

In this paper, the effect of coffee carbon and graphene far-infrared polyamide knitted fabrics on blood perfusion were studied based on the test method of human skin microcirculation (HSM), starting from the plating yarn feeding ratio and stitch of seamless knitted fabrics. Set the face yarn feeding ratios of coffee carbon polyamide (CCP) and graphene polyamide (GP) as 100:0, 75:25, 50:50, and 25:75. The stitches were 1 + 3 rib, 1 + 1 false rib, and plain plating. Both the plating yarn feeding ratio and stitch were designed as two experimental factors. According to the comprehensive experimental design method, 12 seamless knitted fabrics were prepared. The HSM was tested by BVI Projection Vein Finder. According to the orthogonal analysis method: Factor A, the plating yarn feeding ratio has the greatest effect on HSM, the second was factor B. When the plating yarn feeding ratio was 75:25, the stitch was 1 + 3 rib, the fabric has an excellent promoting effect on HSM. The purpose of this study was to explore the process parameters of far-infrared seamless knitted fabrics that have a better promotion effect on HSM, to apply the process to develop functional health care clothing to meet people’s market needs.