Multi-layer fabric for paper-making

Claim 1

Multi-layer fabric for paper-making, said fabric comprising: an upper fabric layer and a lower fabric layer, respective warps and wefts interwoven with each other to form each of said upper and lower fabric layers, said upper layer being formed by warps and wefts woven as a plain weave except at binding portions thereof and being adapted to support a paper slurry thereon, said lower layer positioned below said upper layer and being formed by warps and wefts each having larger diameters than said warps and wefts forming said upper layer, binder threads interlaced with some of the warps of said upper layer and with some of the warps of said lower layer, respectively, to bind said upper layer and said lower layer together, said binder threads being separate from the warps and wefts which form said upper layer and said lower layer, so that at said binding portions, a warp of said upper layer is interlaced with said binder thread and extends under three successive wefts of said upper layer, a weft of said upper layer extends above three successive warps of said upper layer, each said binder thread, at said binding portions, passes upwardly between a first warp and a second warp of said three successive warps of said upper layer, above said second warp, and downwardly between said second warp and a third warp of said three successive warps of said upper layer, and said binder thread is positioned at the binding portion under said weft of said upper layer, formation of a recess in which said paper slurry can accumulate thereby being prevented.