摘要:
A composite forming fabric (10) comprising a paper side layer (12) having a paper side surface, a machine side layer (14) having a bottom wear side surface, and a plurality of pairs of first and second intrinsic, interchanging weft binder yarns (16,18,20, . . . 34) for binding together the paper side layer (12) and the machine side layer (14). At least of said plurality of pairs of first and second intrinsic, interchanging weft binder yarns have at least four segments (S1-S4) in the paper side layer (12) within each repeat of the weave pattern in the fabric, and these segments provide an unbroken weft path in the paper side surface. Each of the first and second intrinsic, interchanging weft binder yarns (16,18,20, . . . 34) of each binder pair having at least four segments (S1-S4) in the paper side layer (12) within each repeat of the weave pattern binds to at least one warp yarn (2-20) in the machine side layer (14) vertically underlying one of the segments (S1-S4).
摘要:
Multi-layer forming fabric having a paper side warp layer and a machine side warp layer, the fabric comprising at least one set of paper side wefts, at least one set of machine side wefts and at least one pair of interchanging weft yarns, the members of each interchanging weft pair together forming one continuous weft path on the paper side wherein all of the interchanging weft pair members interweaving with at least one paper side warp and in at least one interchanging weft pair interweaving with at least one machine side warp and with at least one paper side warp yarn and the other member interweaving only with at least one paper side warp yarn.
摘要:
A forming fabric having a set of paper side warp yarns, which interlace with both a set of paper side weft yarns and a set of binder wefts and a set of machine side warp yarns which interlace with a set of machine side weft yarns and the set of binder weft yarns, whereby the binder weft yarns are disposed in groups of at least two, and whereby both binder weft yarns of at least one binder group, in total, form fewer knuckles over the paper side warp yarns than the paper side weft yarns.
摘要:
A web forming fabric has a machine direction of intended movement on a web forming machine and a cross-machine direction substantially normal to the machine direction. The fabric includes machine direction yarns disposed generally in the machine direction and transverse yarns disposed generally transversely to the machine direction. The fabric includes first and second substantially linear arrays of systematically distributed areas of high drainage on one side thereof. These linear arrays are oriented at an acute angle to the machine direction and at an acute angle to each other. The boundaries of each of the systematically distributed areas are defined by two pairs of adjacent sides; the adjacent sides of one pair being angled segments of one transversely extending yarn and the adjacent sides of the other pair being angled segments of a second transversely extending yarn contiguous to the one transversely extending yarn. The opposite side of the fabric has long machine direction floats over adjacent transverse yarns and the machine direction floats of adjacent machine direction yams partially overlap each other in the machine direction.
摘要:
A paper machine fabric has a paper side warp layer and a machine side warp layer. The fabric comprises at least one set of paper side wefts interlaced with the paper side warps and at least one set of machine side wefts interlocked with the machine side warps. The fabric further comprises at least one pair of interchanging weft binders, the members of each weft binder pair together forming one continuous weft path on the paper side, each of said members of all of said weft binder pairs interweaving with at least one paper side warp and at least one machine side warp. At least one weft binder yarn of at least one binder pair interlocks in an unlocked position with at least one warp yarn of the machine side of the fabric.
摘要:
A fabric employed in a web forming apparatus to form a patterned fibrous web includes at least one layer of yarns oriented in first and second directions and being woven to provide a lattice that separates a plurality of systematically distributed woven areas of a predetermined configuration that is defined by the pattern of the continuous lattice and with the systematically distributed woven areas including at least three yarns oriented in each of the first and second directions.
摘要:
A multilayer, woven fabric for use in a papermaking machine includes a self-sustaining top layer including a plurality of top machine direction yarns interwoven with a plurality of top cross-machine-direction yarns and a bottom layer including a plurality of bottom pairs of machine direction yarns interwoven with a plurality of bottom cross-machine-direction yarns. Each of the bottom cross-machine-direction yarns substantially vertically underlies a respective top cross-machine-direction yarn and each of the bottom pairs of machine direction yarns substantially vertically underlies a respective top machine direction yarn, with at least one of the machine direction yarns in at least some of the bottom pairs of machine direction yarns interweaving the bottom cross-machine-direction yarns to each other and to the top cross-machine-direction yarns of the top layer.
摘要:
Paper making composite forming fabric comprising paper side weft and warp yarns, wear side warp yarns and binder yarns, wherein the paper side wefts and the binder yarns are interwoven with the paper side warp yarns, and wherein the binder yarns are interwoven with the wear side warps, wherein the total number of paper side and wear side warp yarns per weave repeat is greater than 24.
摘要:
A composite fabric comprising a paper side layer, a machine side layer and a plurality of pairs of first and second intrinsic, interchanging weft yarns having at least two segments in the paper side layer within each repeat of the weave pattern. Each layer comprises warp yarns and weft yarns woven together and having a predetermined repeat of the weave pattern in the cross-machine-direction. The first and second intrinsic, interchanging weft yarns in at least some of the plurality of pairs cooperating with each other to provide a discontinuous weft path in the paper side layer within each repeat of the weave pattern. Each pair of interchanging yarns that provides a discontinuous weft path in the paper side layer is positioned between two adjacent top weft yarns of the paper side layer, and each of the two adjacent top weft yarns cooperates with a different yarn of the interchanging yarn pair between the adjacent top weft yarns to define a continuous weft path within each repeat of the weave pattern of the fabric.
摘要:
A paper making composite forming fabric including paper side weft and warp yarns and wear side warp yarns and bindery yarns. The paper side wefts and the binder yarns being interwoven with the paper side warp yarns. The binder yarns being interwoven with the wear side warps. A total number of paper side and wear side warp yarns per weave repeat is greater than 24. An internal binder float length is between 2 and 4. The fabric has an interchange points percentage value of less than 20 and a binder interchange points as a percentage of total machine direction yarns value of less than 10.