Patent ID: 7073539

Claim:
An industrial two-layer fabric comprising: an upper layer comprising an upper surface side warp, an upper surface side weft, an auxiliary weft binding yarn, and an auxiliary weft; and a running face layer disposed under the upper layer and comprising a running face side warp and a running face side weft, wherein the upper surface side warp passes above two continuous upper surface side wefts to form a crimp having a length for two upper surface side wefts on an upper surface, and subsequently passes under two or more continuous upper surface side wefts, a pair of two auxiliary weft binding yarns are disposed between the upper surface side wefts, two auxiliary weft binding yarns alternately form the upper surface, one of the binding yarns passes above a plurality of upper surface side warps to form a long crimp for two or more warps on the upper surface, and the other binding yarn is woven together with the running face side warp so that the two auxiliary weft binding yarns connect the upper layer to the running face layer under the one binding yarn, and the auxiliary weft is disposed between other upper surface side wefts, and passes above a plurality of upper surface side warps to form a long crimp for two or more warps on the upper surface.