The present disclosure provides an article. In an embodiment, the article a three-dimensional random loop material (3DRLM) composed of a web structure of a multitude of winding continuous strands melt-bonded together at a multitude of contact points to form a multitude of loops. Each continuous strand is composed of a crosslinked composition formed from starting materials comprising (i) an ethylene-based polymer, and (ii) 2,2,6,6-tetramethyl-4-piperidyl methacrylate disulfide (BiTEMPS methacrylate). This yields a 3DRLM that is composed of a crosslinked composition comprising (i) an ethylene-based polymer, and (ii) linkages having a Structure (2) below (I)

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This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibers and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising extruded polyvinyl alcohol fibers, methods of making extruded polyvinyl alcohol fibers and products incorporating such fibers.

This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibers and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising extruded polyvinyl alcohol fibers, methods of making extruded polyvinyl alcohol fibers and products incorporating such fibers.

A hollow fiber that extending along at least a portion of the fiber along a longitudinal axis thereof and is defined by an interior wall is provided. Through selective control over the manner in which it is formed, the present inventors have discovered that the hollow fiber can exhibit a unique combination of a high void fraction and small fiber size that makes it particularly suitable for use in certain applications, such as in nonwoven webs for absorbent articles.

A hollow fiber that extending along at least a portion of the fiber along a longitudinal axis thereof and is defined by an interior wall is provided. Through selective control over the manner in which it is formed, the present inventors have discovered that the hollow fiber can exhibit a unique combination of a high void fraction and small fiber size that makes it particularly suitable for use in certain applications, such as in nonwoven webs for absorbent articles.

Systems, devices and methods are provided for producing fibrous materials and products, such as filters. A system comprises a first device for generating one or more fiber stream(s), and a second device for isolating nanoparticles within a gaseous medium. The second device forms the nanoparticles into a stream and feeds this stream into the fiber streams to form the fibrous material. This distributes the nanoparticles more uniformly throughout the fibrous material. In addition, the nanoparticles increase the overall surface area within the material, which, in certain applications, increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop through the filter. Filters produced with these systems and methods are capable of withstanding rigorous conditioning, which allows the filter to achieve substantially the same level of filtration performance throughout the lifetime of the filter.

Systems, devices and methods are provided for producing fibrous materials and products, such as filters. A system comprises a first device for generating one or more fiber stream(s), and a second device for isolating nanoparticles within a gaseous medium. The second device forms the nanoparticles into a stream and feeds this stream into the fiber streams to form the fibrous material. This distributes the nanoparticles more uniformly throughout the fibrous material. In addition, the nanoparticles increase the overall surface area within the material, which, in certain applications, increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop through the filter. Filters produced with these systems and methods are capable of withstanding rigorous conditioning, which allows the filter to achieve substantially the same level of filtration performance throughout the lifetime of the filter.

Nonwoven materials having at least one layer comprising cellulose fibers are provided. The nonwoven materials comprise bonded natural cellulosic fibers having high capillary action. The nonwoven materials are suitable for use in a variety of applications, including absorbent products and pre-moistened cleaning materials with metered release of liquid.

Nonwoven materials having at least one layer comprising cellulose fibers are provided. The nonwoven materials comprise bonded natural cellulosic fibers having high capillary action. The nonwoven materials are suitable for use in a variety of applications, including absorbent products and pre-moistened cleaning materials with metered release of liquid.

A production device for melt-blown non-woven fabric, with which a high molecular weight polymer can be reduced in molecular weight by applying a shear force to the high molecular weight polymer without adding an additive such as a peroxide that promotes thermal decomposition reaction, and a low molecular weight polymer can be efficiently produced. The low molecular weight polymer and the melt-blown non-woven fabric are produced using a continuous high shearing device that applies a shear force to the high molecular weight polymer serving as a raw material by rotation of a screw body 37 to reduce the molecular weight of the high molecular weight polymer so as to obtain a low molecular weight polymer, and cools the low molecular weight polymer by passing the low molecular weight polymer through a passage 88 arranged in the axial direction inside the screw body 37.