Patent classifications
A61F2013/51169
Method for making hydroformed expanded spun bonded nonwoven web
A method for hydroforming a spun bonded nonwoven web includes applying a plurality of pressurized liquid jets onto an original unexpanded spun bonded nonwoven web having an original loft while the web passes over a forming structure. A plurality of spun bonded fibers in the original unexpanded spun bonded nonwoven web are reoriented from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed expanded spun bonded nonwoven web having a loft of at least about 1.3 times greater than the original loft of the original unexpanded spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web. The hydroformed expanded spun bonded nonwoven web has a surface with a plurality of protuberances in a pattern corresponding to the pattern of apertures in the forming structure.
Method of making a hydroformed composite material
A method for hydroforming a composite precursor material includes forming a composite precursor material comprising an original spun bonded nonwoven web and a polymer film layer. The method also includes applying a plurality of pressurized liquid jets onto an outer surface of the original spun bonded nonwoven web while the composite precursor material passes over a forming structure to push and reorient a plurality of spun bonded fibers from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed composite material comprising an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than the original loft of the original spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.
WEARABLE ARTICLE COMPRISING A LAMINATE
Wearable article comprising a laminate with excellent sweat management properties. The laminate comprises a first web and a second web. The second web is formed of a first fibrous layer and a second fibrous layer, which are integrally combined with each other. The second fibrous layer may be more hydrophilic than the first fibrous layer; and/or the second fibrous layer may have higher average surface area per volume than the first fibrous layer.
Method for making a composite material
A hydroformed expanded spun bonded nonwoven has a first substantially planar surface on one side thereof and a second surface on an opposite side thereof. The second surface includes a plurality of protuberances in a pattern. The hydroformed expanded spun bonded nonwoven web has an average loft of at least about 1.3 times greater than an original average loft of an original unexpanded spun bonded nonwoven web from which the hydroformed expanded spun bonded nonwoven web was created and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web. The hydroformed expanded spun bonded nonwoven web includes bicomponent fibers combining a polymer with PLA in a ratio of polymer/PLA within a range of about 20/80 to 80/20.
METHOD FOR MAKING A COMPOSITE MATERIAL
A method for manufacturing a composite material includes forming a composite precursor material comprising a nonwoven layer comprising a plurality of fibers and a polymer film layer laminated to the nonwoven layer; forming a plurality of apertured extended cells in the polymer film layer, each of the apertured extended cells having a continuous sidewall extending away from the nonwoven layer that terminates in an aperture at a distal end; and, while forming the plurality of apertured extended cells, pushing, with a fluid, at least one of the fibers into at least one of the apertured extended cells so that a portion of the at least one of the fibers extends into the at least one of the apertured extended cells and through the aperture at the distal end.
Composite material and method for making same
A composite material includes a nonwoven layer having a plurality of fibers and a polymer film layer with a plurality of extended cells. Each of the extended cells are contemplated to include continuous sidewalls extending away from the nonwoven layer. At least one of the fibers extends into one or more of the extended cells.
Fluid management layer for an absorbent article
A fluid management layer having an integrated, carded, nonwoven is described. The fluid management layer has a basis weight of between about 40 grams per square meter (gsm) and about 75 gsm; a plurality of absorbent fibers, a plurality of stiffening fibers and a plurality of resilient fibers; wherein the fluid management layer exhibits a total compression of greater than 0.40 mm and has a total recovery of at least 0.35 mm, and wherein the fluid management layer has a density of less than or equal to 0.08 g/cc.
HYDROFORMED EXPANDED SPUN BONDED NONWOVEN WEB AND METHOD FOR MAKING SAME
A method for hydroforming a spun bonded nonwoven web includes applying a plurality of pressurized liquid jets onto an original unexpanded spun bonded nonwoven web having an original loft while the web passes over a forming structure. A plurality of spun bonded fibers in the original unexpanded spun bonded nonwoven web are reoriented from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed expanded spun bonded nonwoven web having a loft of at least about 1.3 times greater than the original loft of the original unexpanded spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web. The hydroformed expanded spun bonded nonwoven web has a surface with a plurality of protuberances in a pattern corresponding to the pattern of apertures in the forming structure.
METHOD OF MAKING A HYDROFORMED COMPOSITE MATERIAL
A method for hydroforming a composite precursor material includes forming a composite precursor material comprising an original spun bonded nonwoven web and a polymer film layer. The method also includes applying a plurality of pressurized liquid jets onto an outer surface of the original spun bonded nonwoven web while the composite precursor material passes over a forming structure to push and reorient a plurality of spun bonded fibers from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed composite material comprising an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than the original loft of the original spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.
FLUID MANAGEMENT LAYER FOR AN ABSORBENT ARTICLE
A fluid management layer having an integrated, carded, nonwoven is described. The fluid management layer has a basis weight of between about 40 grams per square meter (gsm) and about 75 gsm; a plurality of absorbent fibers, a plurality of stiffening fibers and a plurality of resilient fibers; wherein the fluid management layer exhibits a total compression of greater than 0.40 mm and has a total recovery of at least 0.35 mm, and wherein the fluid management layer has a density of less than or equal to 0.08 g/cc.