Fabric for papermaking machines
AssigneeUnaform, Inc.
InventorTibor L. Matuska
Life of this patent
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Abstract
A Fourdrinier or forming fabric in which a plurality of warp yarns and a first plurality of weft yarns are woven according to a first weave pattern containing a predetermined sequence of shedding and picking instructions, and the plurality of warp yarns and a second plurality of weft yarns are woven according to a second weave pattern containing a predetermined sequence of shedding and picking instructions, the first pattern being different from the second pattern.
Claims26
A planar forming fabric comprising at least one single layer fabric having first and second surfaces, a plurality of rounds of weave arranged to each other to define the width of said single layer fabric, said adjacently arranged rounds of weave repeated a desired number of times to define the length of said single layer fabric, each of said rounds of weave being defined by warp and weft yarns interwoven according to shedding and picking instructions determined by at least two different coplanar weave patterns, said adjacent rounds of weave comprising a plurality of cross-machine direction floats in close proximity to each other on said first surface, a plurality of machine direction knuckles on said first surface, a plurality of machine direction floats in close proximity to each other on said second surface, a plurality of cross-machine direction knuckles on said second surface, said knuckles and floats coacting to prevent misalignment of said floats that are in close proximity to each other, and to provide uniform drainage apertures on said fabric.
A method for producing a planar forming fabric having first and second surfaces, said method comprising the steps of:
- weaving at least one single layer fabric from a plurality of rounds of weave, each of said rounds of weave being defined by warp and weft yarns interwoven according to shedding and picking instructions determined by at least two different weave patterns, said weave patterns being coplanar and
- arranging said rounds of weave adjacent to each other to define the length and width of said single layer fabric and to provide a plurality of cross-machine direction floats in close proximity to each other on said first surface, a plurality of machine direction knuckles on said first surface, a plurality of machine direction floats in close proximity on said second surface, and a plurality of crossmachine direction knuckles on said second surface, wherein said knuckles and floats coact to prevent misalignment of said floats that are in close proximity to each other and to provide uniform drainage apertures on said fabric.
Dependencies are inferred from the claim text.