Patent ID: 7306014

Claim:
An industrial two-layer fabric which comprises ten pairs of warps obtained by vertically arranging ten upper surface side warps and ten lower surface side warps, and a plurality of upper surface side wefts and lower surface side wefts, and has an upper surface side layer and a lower surface side layer bound with warp-direction yarns, wherein: in the lower surface side layer, warps are formed by sequentially arranging a design in which one warp passes over six successive lower surface side wefts, passes under one lower surface side weft, passes over two lower surface side wefts, and passes under one lower surface side weft while shifting the design by three lower surface side wefts; two adjacent lower surface side warps simultaneously weave therein one lower surface side weft from the lower surface side, whereby the lower surface side weft passes over two lower surface side warps and then passes under eight lower surface side warps to form a weft long crimp corresponding to eight lower surface side warps on the lower surface side surface; and by forming a portion in which a lower surface side warp and each of lower surface side warps on both adjacent sides thereto alternately passes under a lower surface side weft, the lower surface side warp is brought into contact with the lower surface side warps on both adjacent sides thereto alternately and is placed in a zigzag arrangement.