Apparatus for compacting and/or structuring a nonwoven, and a structural shell
AssigneeTrutzschler GmbH & Co. KG
InventorsThomas Weigert, Peter Körner, Florian Seils, Rolf Schröder, Bernd Stork
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for hydroentangling and/or structuring webs that includes an suctioning rotating drum and a structured shell, including at least two rings which can be pushed on and attached to the drum, is disposed at a distance from the cylindrical surface of the drum around. A web can be at least partially looped around the structured shell. At least one water bar including a nozzle strip with a plurality of nozzles is arranged relative to the structured shell to entangle and/or to structure and/or to perforate the web by the water jets. The invention further relates to the structured shell.
Claims19
A device for hydroentangling and/or structuring a web, comprising:
- a suctioning rotating drum having a cylindrical surface;
- a structured shell disposed on the drum at a distance from the cylindrical surface, the structured shell including at least two separate rings each constructed to be pushed on, independent of one another, and attached to the drum adjacent one another to collectively form the structured shell around which the web can be at least partially looped;
- and
- at least one water bar including a nozzle strip with a plurality of nozzles to project water jets, wherein the water bar is arranged relative to the structured shell to entangle and/or to structure and/or to perforate the web when on the structured shell by the water jets.
A structured shell for use in a device having a cylindrical suctioning drum for entangling and/or structuring a web by hydroentangling, the structured shell comprising at least two separate structured rings each constructed to be pushed on, independent of one another, and attached to the drum adjacent one another thereby presenting the structured shell, wherein each structured ring includes at least fine porous openings to at least one of entangle and structure the web when water jets are sprayed against the web when the web is at least partially looped around the structured shell.
Dependencies are inferred from the claim text.