Polyester yarn with high elasticity and flexibility

The utility model relates to the technical field of yarns, in particular to a high-elasticity and high-flexibility polyester yarn which comprises an outer wrapping layer, an elastic winding layer arranged in the outer wrapping layer, an anti-static layer arranged in the elastic winding layer, an antibacterial layer arranged in the anti-static layer and a yarn core arranged in the center of the interior of the antibacterial layer. And the antibacterial layer is filled with a soft filling layer. According to the polyester yarn with high elasticity and flexibility, the high-elasticity fiber yarn is arranged on the outermost layer of the yarn, and the elastic winding layer, the flexible filling layer and the yarn core which are spirally wound are arranged, so that the elasticity of the yarn can be greatly improved, and the yarn has high flexibility due to the milk fiber yarn inside the yarn; the anti-static layer is arranged to greatly reduce generation of static electricity, and the anti-bacterial layer made of