Paper machine clothing and method
AssigneeVoith Patent GmbH
InventorRobert Eberhardt
Life of this patent
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Abstract
A paper machine clothing, in particular a press felt, for a machine for producing or processing a fibrous material web, includes a base structure and at least one layer of nonwoven fibers disposed on the base structure. The layer of nonwoven fibers has bonding fibers and further fibers. The bonding fibers and the further fibers differ in at least one material property, and at least some of the bonding fibers are connected to one or more further fibers and/or elements of the base structure by an integral joining connection, in particular a weld connection. A method for producing the clothing is also provided.
Claims12
A clothing or press felt for a machine for producing or processing a fibrous material web, the clothing comprising:
- a woven fabric base structure having an upper surface and
- a fibrous structure comprising at least one fibrous layer of nonwoven fibers disposed on the upper surface of said base structure,
- wherein said fibrous structure of nonwoven fibers comprises bonding fibers and further fibers,
- wherein said bonding fibers and said further fibers differ in at least one material property,
- wherein said bonding fibers differ from said further fibers in that said bonding fibers substantially absorb NIR radiation in a wavelength range between 780 nm and 1100 nm, and said further fibers are entirely or substantially transparent for radiation in said wavelength range, and
- wherein, due to controlled energy input carried out by irradiation of the clothing in a wavelength that is absorbed by the bonding fibers, at least some of said bonding fibers are connected by weld connections to at least one of:
- one or more of said further fibers and
- elements of said base structure.
A clothing or press felt for a machine for producing or processing a fibrous material web, the clothing comprising:
- a woven fabric base structure having an upper surface and
- a fibrous structure comprising at least one fibrous layer of nonwoven fibers disposed on the upper surface of said base structure,
- wherein said fibrous structure of nonwoven fibers comprises bonding fibers and further fibers,
- wherein said bonding fibers differ from said further fibers in that said bonding fibers substantially absorb NIR radiation in a wavelength range between 780 nm and 1100 nm, and said further fibers are entirely or substantially transparent for radiation in said wavelength range, and
- wherein, due to controlled energy input carried out by irradiation of the clothing in a wavelength that is absorbed by the bonding fibers, at least some of said bonding fibers are connected by weld connections to at least one of:
- one or more of said further fibers and
- elements of said base structure.
Dependencies are inferred from the claim text.