US 12,134,845 B2
Spunbond nonwoven of continuous filaments and of making same
Tobias Wagner, Cologne (DE); Sebastian Sommer, Troisdorf (DE); Patrick Bohl, Hennef (DE); Andreas Roesner, Bonn (DE); Hans-Georg Geus, Niderekassel (DE); and Gerold Linke, Hennef (DE)
Assigned to REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK, Troisdorf (DE)
Appl. No. 17/426,834
Filed by REIFENHÄUSER GMBH & CO. KG MASCHINENFABRIK, Troisdorf (DE)
PCT Filed Jul. 14, 2020, PCT No. PCT/EP2020/069906
§ 371(c)(1), (2) Date Aug. 8, 2021,
PCT Pub. No. WO2021/018574, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 19189237 (EP), filed on Jul. 30, 2019.
Prior Publication US 2022/0251747 A1, Aug. 11, 2022
Int. Cl. D04H 3/011 (2012.01); D01D 5/22 (2006.01); D01D 5/34 (2006.01); D04H 3/018 (2012.01); D04H 3/147 (2012.01)
CPC D04H 3/011 (2013.01) [D01D 5/22 (2013.01); D01D 5/34 (2013.01); D04H 3/018 (2013.01); D04H 3/147 (2013.01); D10B 2331/04 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A spunbond nonwoven textile made of endless crimped bicomponent or multicomponent filaments having an eccentric core-sheath configuration, wherein the sheath of the filaments in the filament cross-section has a substantially constant thickness of 0.1 to 5 μm over at least 20% of the filament outer surface.