| abstract |
According to the present invention, in the three-dimensional structure net by warp knitting, the three-dimensional braid portion that clarifies the net mesh space has good shape retention, can suppress directionality, is excellent in structural stability and pressure resistance, and maintains appropriate elasticity. In addition, it is possible to simply configure the three-dimensional braided part simply by applying tension, and have a high porosity retention, light weight, and use these characteristics to make it suitable for various applications. The three-dimensional net A is formed by the bases 1 and 2 of the front and back and the connecting yarn 3 connecting the front and back, and the size of the net meshes 12 and 22 of the bases 1 and 2 of the front and back is measured. Are formed differently from each other, and the three-dimensional braid portion 4 is formed with the connecting thread 3 across the string portion 11 on the large net mesh 12 side and the string portion 21 on the small net mesh 22 side. And this mouth In all or part of the sieve braid portion 4, the connecting yarn 3 is placed from the string portion 11 on the large net mesh 12 side to the plurality of string portions 21 on the small net mesh 22 side. It is characterized in that it is formed to form a three-dimensional shape having a width for holding a small net mesh in the braid portion, in particular a three-dimensional shape for holding a three-dimensional void inside the side to form a small net mesh. |