09.12.25
Christoph Willing, Vreden, Germany; Paul Waller, Rosenheim, Germany; Michael Scherer, Flintsbach im Inn, Germany; and Reinhard Epping, Gronau-Epe, Germany.
Assigned to RKW SE, Mannheim, Germany.
Filed: 1/22/20
Issued: 8/5/25
A stretchable diaper element, comprising an extruded elastic layer (1); a layer (2) made of nonwoven material; the elastic layer has spaced-apart connecting regions (5) between the elastic layer (1) and the layer (2) made of the nonwoven material; the layer (2) made of the nonwoven material is corrugated in a non-stretched state of the diaper element to form regions (6) acting as reserve that are configured to enable stretching; the connecting regions (5) comprise zones (8) in which there is a form-fitting bond of material of the layer (2) made of the nonwoven material, including fibers of the nonwoven material that are not melted that are pressed into and pierce through a surface of the extruded elastic layer (1) when the extruded elastic layer (1) is in a molten state, and the fibers of the nonwoven material are held in place by a form-fitting bond with the extruded elastic layer (2) after solidification; and the fibers of the layer (2) made of the nonwoven material are in at least one of oriented or stretched form in the connecting regions (5).
Assigned to RKW SE, Mannheim, Germany.
Filed: 1/22/20
Issued: 8/5/25
A stretchable diaper element, comprising an extruded elastic layer (1); a layer (2) made of nonwoven material; the elastic layer has spaced-apart connecting regions (5) between the elastic layer (1) and the layer (2) made of the nonwoven material; the layer (2) made of the nonwoven material is corrugated in a non-stretched state of the diaper element to form regions (6) acting as reserve that are configured to enable stretching; the connecting regions (5) comprise zones (8) in which there is a form-fitting bond of material of the layer (2) made of the nonwoven material, including fibers of the nonwoven material that are not melted that are pressed into and pierce through a surface of the extruded elastic layer (1) when the extruded elastic layer (1) is in a molten state, and the fibers of the nonwoven material are held in place by a form-fitting bond with the extruded elastic layer (2) after solidification; and the fibers of the layer (2) made of the nonwoven material are in at least one of oriented or stretched form in the connecting regions (5).
