Double rib yarn-dyed knitted fabric is a knitted fabric woven by forming longitudinal loops on both sides of a yarn. It has good elasticity and the dispersion, winding and extensibility of plain fabric. The product is made of 95% rayon and 5% spandex, with a fabric weight of 210 grams per square meter and a width of 165 cm. The elasticity and comfort of double rib yarn-dyed knitted fabric make it widely used in making hoodies, pants and other work clothes. The product has good dimensional stability, small lateral elongation and full surface. The two weaving methods of Swiss and French make them have different characteristics, which are suitable for different types of knitted outerwear. Double rib yarn-dyed knitted fabric is often used in T-shirt collars, cuffs, and casual style clothing such as socks, bringing a comfortable and unrestrained wearing experience. Although the chemical fiber version is prone to pilling after washing, it will be relieved after wearing for a long time. In general, double rib yarn-dyed knitted fabric has become an important material in the modern textile industry with its excellent elasticity, comfort and diverse application prospects.