The invention relates to a multilayer sound absorber comprising a flow-resistant nonwoven with at least two individual flow-resistant layers, wherein the individual flow-resistant layers are arranged one above the other in a direction of penetration of the sound waves to be absorbed and each has a flow resistance between 300 Pa s/m and 1800 Pa s/m, preferably between 400 Pa s/m and 1500 Pa s/m, wherein the flow resistance of the respective individual flow-resistant layer increases from individual flow-resistant layer to individual flow-resistant layer in the direction of penetration. The invention also relates to a method for manufacturing the multilayer sound absorber according to the invention and to a use of the multilayer sound absorber according to the invention for sound absorption in the automotive sector, as well as in the field of building and room acoustics.

The present invention relates to a fabric comprising a plurality of fibers, wherein the plurality of fibers are made of a fiber material comprising a cellulose ether and wherein the plurality of fibers form a nonwoven web. The present invention further relates to a corresponding method of producing a fabric comprising a nonwoven web.

A barrier fabric suitable as a backsheet for an underpad configured for a low air loss bed, in which the barrier fabric comprises a first nonwoven fabric including outermost spunbond layers and two or more fine-fiber containing nonwoven layers. Each of the nonwoven layers being treated with a non-fluorinated barrier coating (NFBC).

Embodiments described herein relate generally to adhesive alloys and their use in filter media, and in particular to adhesive alloys that can be melt blown onto a filter media layer, and which are thermally activated to bond the filter media layer to another filter media layer. An adhesive alloy is provided. A thermally activated adhesive has a first melting temperature. A polymer has a second melting temperature greater than the first melting temperature. A ratio of the thermally activated adhesive in the adhesive alloy is in a range of 5 wt % to 70 wt %.

Aspects herein are directed to a recyclable, asymmetrical-faced composite nonwoven textile suitable for use in apparel and other articles and methods of making the same. In example aspects, the asymmetrical-faced composite nonwoven textile includes a first face formed, at least in part from a first entangled web of fibers and an opposite second face formed, at least in part from a second entangled web of fibers. When incorporated into an article of apparel, the first face forms an outer-facing surface of the article of apparel, and the second face forms an inner-facing surface of the article of apparel. The first face includes features making it suitable to form the outer-facing surface such as resistance to abrasion, and the second face includes features making it suitable to form an inner-facing surface such as a soft hand.

A fibrous structure having one or more vertically lapped layers having a first surface and a second surface and a facing layer secured to the first surface of the vertically lapped layer. The fibrous structure is adapted to be used in a flooring assembly. The fibrous structure may include a mesh and/or a backing layer on the second surface of a vertically lapped layer. The fibrous structure exhibits improved performance in below room testing and/or in-room testing as compared with traditional materials of the same thickness.

The present invention provides a non-woven fabric for supporting a solid electrolyte in which heat-fusible composite fibers with a crimp are contained in an amount of not less than 60 mass % and not more than 100 mass % and are heat-fused, and a solid electrolyte sheet. The non-woven fabric for supporting a solid electrolyte is excellent in process performance, is satisfactorily filled with a solid electrolyte, is suitable for achieving a thin solid electrolyte sheet, and has few hole defects. The solid electrolyte sheet is excellent in self-sustainability and flexibility.

A composite tape (1) is provided comprising at least a first layer (3) comprising a plurality of first continuous polymer filaments (32) defining a development axis (32a) and at least in part a plurality of mutually identical outlines (33) arranged in succession along said development axis (32a); a second layer (4) of second continuous polymer filaments (40) forming a surface layer of tape (1) and placed in contact with the first layer (3); wherein the outline (33) is determined on a section plane (32b) normal to the development axis (32a), defining a first extension area on the section plane (32b) and being inscribable in a circle determined on the section plane (32b) and defining a second extension area on the section plane (32b); and wherein the first extension area is less than 90% of the second extension area.

A composite tape (1) is provided comprising one or more matrices (2) of high thickness polymeric fibres comprising pores; at least one first layer (3) in contact with the matrix (2) and including a mixture (30) at least in part penetrating the pores, and comprising, mutually mixed together, a plurality of cellulose particles (31), and a plurality of continuous first polymer filaments (32) defining, before being mixed with the particles (31), a development axis (32a) and defining at least in part a plurality of mutually identical outlines (33) arranged in succession along the development axis (32a); a second layer (4) of continuous second polymer filaments (40) forming a surface layer of the tape (1) and placed in contact with the matrix (2) and/or the first layer (3) without penetrating the pores; wherein the outline (33) is determined on a section plane (32b) normal to the development axis (32a), defining a first extension area on the section plane (32b) and being inscribable in a circle determined on the section plane (32b) and defining a second extension area on the section plane (32b); and wherein the first extension area is less than 90% of the second extension area.

Filter media including nonwoven fiber webs comprising nanofibers, and related methods, are generally described.