US Patent 7108019 Industrial two-layer fabric

An industrial two-layer fabric comprises an upper layer fabric having upper surface side warps and upper surface side wefts and a lower layer fabric having lower surface side warps and lower surface side wefts. The upper layer fabric and the lower layer fabric are bound at least one spot in a repeating unit where an upper surface side warp weaves a lower surface side weft without weaving an upper surface side weft which should have been woven by the upper surface side warp based on the fabric structure, and where a lower surface side warp weaves the upper surface side weft which should have been woven by the upper surface side warp, without weaving the lower surface side weft which should have been woven by the lower surface side warp.