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US 8,034,730 B2Granted
Composite press fabric
AssigneeVoith Patent GmbH
InventorsArved Westerkamp, Robert Crook, Robert Eberhardt
Life of this patent
Estimating the term…
Abstract
A press fabric for a machine for the production of web material, especially paper or cardboard, including a carrying structure and a plurality of layers on one web material contact side of the carrying structure, whereby polymeric material is contained in at least one of the layers of fibrous material.
Claims16
A press fabric for a machine for the production of a fibrous web material, the press fabric comprising:
- a carrying structure;
- a first layer of fibrous material having a web material contact surface;
- and
- at least one second layer of fibrous material being located between said carrying structure and said first layer of fibrous material, said at least one second layer of fibrous material having fibers and including a polymeric material forming a film at least partially coating at least some of said fibers, at least 70% of said fibers being coated to 70% with said film of said polymeric material and said polymeric material being an aqueous dispersion of particle-shaped polymeric material applied onto said at least one second layer of fibrous material, the liquid of said aqueous dispersion having subsequently been removed to form said film, wherein said fibers of said at least one second layer are bonded with each other at crossing points through said polymeric material.
1 more element
Dependencies are inferred from the claim text.