Triangular weft for TAD fabrics
AssigneeAlbany International Corp.
InventorJeffrey B. Herman
Life of this patent
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Abstract
A through-air-drying (TAD) fabric for producing tissue paper and related products on a papermaking machine comprising a plurality of warp yarns interwoven with a plurality of weft yarns to produce pockets on a paper-side surface of the fabric. The weft yarns have a substantially triangular cross-section and are oriented with their flat surface facing a machine side surface of the fabric. The points interlacing with the warp as they pass over and under the weft yarns produce an increased pocket depth and volume in the TAD fabric.
Claims14
A fabric for use on a papermaking machine, comprising:
- a plurality of warp yarns interwoven with a plurality of substantially triangular shaped weft yarns to produce pockets on a paper-side surface of the fabric;
- wherein the triangular weft yarns are oriented with a flat surface facing a machine side surface of the fabric;
- and
- wherein points where the warp yarns interlace with the triangular weft yarns produce deeper pockets when compared to a standard fabric woven in the same weave pattern using circular cross-section yarns, and larger open pocket areas between adjacent triangular weft yarns when compared to a standard fabric woven with the same linear density using circular cross-section yarns.
A method of forming a fabric for use on a papermaking machine, the method comprising the steps of:
- interweaving a plurality of warp yams with a plurality of substantially triangular shaped weft yarns to produce pockets on a paper-side surface of the fabric;
- wherein the triangular weft yams are oriented with a flat surface facing a machine side surface of the fabric;
- and
- wherein points where the warp yarns interlace with the weft yarns produce deeper pockets when compared to a standard fabric woven in the same weave pattern using circular cross-section yams, and larger open pocket areas between adjacent triangular weft yarns when compared to a standard fabric woven with the same linear density using circular cross-section yarns.
Dependencies are inferred from the claim text.