Patent ID: 7874321

Claim:
An industrial two-layer fabric comprising an upper side layer formed by weaving upper side warps with upper side wefts and a lower side layer formed by weaving lower side warps with lower side wefts, the upper side layer and the lower side layer being bound with binding yarns, wherein: each of the lower side wefts passes over three successive lower side warps and then passes under two or more lower side warps thereby forming a lower-side-weft design that includes a lower-side-weft long crimp; a complete design in the lower side layer is formed by arranging the lower side wefts adjacent to each other while repeatedly shifting the lower-side-weft design in accordance with one of the following shifting patterns: (1) shifting by three warps, (2) shifting by four warps, (3) shifting by five warps, (4) shifting by one warp and then four warps, (5) shifting by three warps and then four warps, (6) shifting by two warps and then five warps, (7) shifting by one warp and then six warps, and (8) shifting by one warp, four warps, five warps, and then four warps; and the lower-side-weft long crimp formed in the lower side layer has a rectangular shape.