Multiaxial Fabrics
AssigneeAlbany International Corp.
InventorsJohn M. Hawes, Glenn Kornett, Bjorn Rydin, Scott Quiqley, Michael A. Royo, James G. Donovan, Steven Yook
Life of this patent
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Abstract
The present invention provides a multilayer multiaxial woven fabric for a papermachine having a reduced interference pattern and accordingly improved dewatering uniformity. The present invention also provides a method of forming such multilayer multiaxial fabric.
Claims22
A multiaxial fabric for use with a paper machine, said fabric comprising:
- an upper layer having a plurality of interwoven machine direction (MD) and cross-machine direction (CD) yarns;
- a lower layer having a plurality of interwoven MD and CD yarns;
- and
- a nonwoven layer disposed between said upper layer and said lower layer.
A method of forming a multiaxial fabric for use in papermaking, said method comprising the steps of:
- interweaving a plurality of machine direction (MD) and cross-machine direction (CD) yarns to form an upper layer;
- interweaving a plurality of MD and CD yarns to form a lower layer;
- and
- disposing a nonwoven layer between said upper layer and said lower layer.
A multiaxial fabric for use with a paper machine, said fabric comprising:
- an upper layer having a plurality of interwoven machine direction (MD) and cross-machine direction (CD) yarns and having an inner side and an outer side;
- a lower layer having a plurality of interwoven MD and CD yarns and having an inner side and an outer side;
- and
- wherein the inner side of the upper layer and the inner side of the lower layer are flattened by a predetermined technique.
A method of forming multiaxial fabric for use with a paper machine, said method comprising the steps of:
- forming an upper layer having a plurality of interwoven machine direction (MD) and cross-machine direction (CD) yarns and having an inner side and an outer side;
- forming a lower layer having a plurality of interwoven MD and CD yarns;
- and having an inner side and an outer side;
- and
- flattening the inner side of the upper side and the inner side of the lower layer by a predetermined technique.
A method of forming a multiaxial fabric for use in a paper machine comprising the steps of:
- forming a multiaxial base fabric having cross-machine direction yarns removed in a first and second seam area;
- attaching a laminate to the outside or inside portion of the base fabric by needling;
- removing, if necessary, unneedled laminate and laminate in the seam areas;
- folding the base fabric over at the seam area;
- and
- joining the seam areas to make the fabric endless.
A multiaxial fabric for use in a paper machine comprising:
- a base fabric woven from a plurality of machine direction and cross-machine direction yarns, wherein the cross-machine direction yarns are removed in a first and second seam area of the base fabric;
- a laminate attached to an outside or inside portion of the base fabric by needling, wherein at least a portion of needled or unneedled laminate is removed from the seam areas;
- wherein the base fabric is folded over at the seam area, thereby joining the seam areas and making the fabric endless.
Dependencies are inferred from the claim text.