US 11,788,220 B2
Apparatus for compacting and/or structuring a nonwoven, and a structural shell
Thomas Weigert, Sulzbach (DE); Peter Körner, Langen (DE); Florian Seils, Seligenstadt (DE); Rolf Schröder, Langen (DE); and Bernd Stork, Riedstadt (DE)
Assigned to TRÜTZSCHLER GMBH & CO. KG, Monchengladbach (DE)
Appl. No. 17/262,116
Filed by TRÜTZSCHLER GMBH & CO. KG, Mönchengladbach (DE)
PCT Filed Jul. 19, 2019, PCT No. PCT/EP2019/069517
§ 371(c)(1), (2) Date Jan. 21, 2021,
PCT Pub. No. WO2020/035257, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 10 2018 119 570.2 (DE), filed on Aug. 13, 2018.
Prior Publication US 2021/0292946 A1, Sep. 23, 2021
Int. Cl. D04H 1/495 (2012.01); D04H 18/04 (2012.01)
CPC D04H 1/495 (2013.01) [D04H 18/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. 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.