| 摘要 |
The object of the present invention is to provide a multi-layer nonwoven fabric which is capable of meeting required characteristics for the nonwoven fabric such as good air permeability, high lateral rigidity, while at the same time of solving a the fibers stuck problem caused by the used of the fabric which has arisen in the conventional nonwoven fabric and of improving the surface density and the oblique rigidity to increase the sheet supportability. The present invention provides a multi-layer nonwoven fabric at least constituted by a first warp, a second warp, an upper surface side weft, and a lower surface side weft, the first warp is woven with the wefts of all layers from the upper surface side weft to the lower surface side weft, the second warp is only woven with the upper surface side weft, the first warp constitutes a pair to form one upper surface side warp structure on an upper surface side layer, whereby a complete structure of a plain weave design is formed by the first and second warps. |
