Industrial fabric for producing tissue and towel products, and method of making thereof
AssigneeAlbany International Corp.
InventorsSabri Mourad, Jonas Karlsson
Life of this patent
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Abstract
A nonwoven fabric includes a plurality of through voids, where each of the voids has a first opening associated with a top surface of the fabric and a first raised edge circumferentially adjacent to the first opening. The voids may each further include a second opening associated with a bottom surface of the fabric and a second raised edge circumferentially adjacent to the second opening, such that the first opening may have a surface area that is larger than or the same as the second opening.
Claims18
A papermaking fabric comprising a plurality of through voids, said through voids each comprising:
- a first opening associated with a top surface of said fabric;
- a second opening associated with a bottom surface of said fabric;
- and
- at least one raised edge circumferentially adjacent to at least one of said first and second openings, wherein said first raised edge is at a height level that is about 5-10 μm above said top surface or said second raised edge is at a height level that is about 5-10 μm below said bottom surface.
A papermaking fabric comprising:
- one or more spirally wound strips of polymeric material, wherein adjacent strips of said spirally wound strips of polymeric material are coupled, said spirally wound strips comprising a plurality of through voids each comprising:
- a first opening associated with a top surface of said fabric;
- a second opening associated with a bottom surface of said fabric;
- and
- at least one raised edge circumferentially adjacent to at least one of said first and second openings, wherein said first raised edge is at a height level that is about 5-10 μm above said top surface or said second raised edge is at a height level that is about 5-10 μm below said bottom surface.
A papermaking fabric comprising:
- strips of polymeric material spirally wound such that adjacent strips of said spirally wound polymeric material are coupled to form a belt;
- and
- a plurality of through voids distributed over said formed belt, wherein said plurality of through voids comprise at least one raised edge circumferentially adjacent to at least one of a first and second opening associated with each of the plurality of distributed through voids, wherein said first raised edge is at a height level that is about 5-10 μm above said top surface or said second raised edge is at a height level that is about 5-10 μm below said bottom surface.
Dependencies are inferred from the claim text.