The invention relates to a method of forming a biodegradable nonwoven fabric, the nonwoven fabric obtained by this method, and a system of devices for carrying out this method, to be used for the manufacture of cellulosic articles for clean-up work and sanitary products, and medical uses.

The present invention aims to provide a nanomesh laminate with which a conductive nanomesh material can be easily placed on a desired site and which is less likely to undergo distortion upon attachment. The object is achieved with a nanomesh laminate including: a mesh-shaped base material (A); and a nanomesh layer (B) containing a polyvinyl alcohol resin as a main component; the mesh-shaped base material (A) and the nanomesh layer (B) being layered next to each other, preferably achieved with a nanomesh laminate including: a nanomesh layer (B) containing polyvinyl alcohol as a main component; and a conductive substance layer (C); on a mesh-shaped base material (A).

A wet wipe which includes a first surface layer, a second surface layer and an absorbent layer is disclosed. The first surface layer has a first outer surface. The second surface layer has a second outer surface. The absorbent layer is arranged between the first surface layer and the second surface layer. A first coefficient of friction of the first outer surface is less than a second coefficient of friction of the second outer surface.

The present disclosure features a composite fabric, including a nonwoven layer including polymeric fibers and/or filaments; a crosslinked cellulose layer including crosslinked cellulose fibers; wherein the crosslinked cellulose layer is positioned opposed to the nonwoven layer (e.g., without an intervening layer different from the crosslinked cellulose layer and the nonwoven layer; in some embodiments, the crosslinked cellulose layer is immediately adjacent to the nonwoven layer); and an interfacial region between the nonwoven layer and the crosslinked cellulose layer, the interfacial region including physically entangled polymeric fibers and/or filaments from the nonwoven layer and crosslinked cellulose fibers from the crosslinked cellulose layer. The nonwoven layer and the crosslinked cellulose layer of the composite fabric are mechanically inseparable in a dry state.

The present disclosure relates to an absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet, an absorbent core disposed between the topsheet and the backsheet, and an intermediate layer disposed between the topsheet and the absorbent core, wherein the intermediate layer comprises a nonwoven which comprises a plurality of apertures, absorbent fibers, and ultrafine fibers. The nonwoven comprises the ultrafine fibers of about 3% to about 35% by weight of the nonwoven, and at least most of the plurality of apertures have a hydraulic diameter in the range of about 600 μm to about 4500 μm.

A nonwoven fabric layered body includes a first nonwoven fabric layer including a crimped fiber (A), which is a fiber made of a thermoplastic polymer and which has an average crimp diameter of 800 μm or less; and a hydrophilic agent.

A high-adsorption-performance nanofiber filter medium includes a support material and a composite nanofiber filtration layer that includes multiple nanometer composite nanofiber layers deposited and stacked on the support material. The nanometer composite nanofiber layer includes first, second, and third nano-powder composite nanofibers, which are uniformly mixed by means of an airflow or are sequentially laminated to form the nanometer composite nanofiber layer. The nanometer composite nanofiber layer formed through sequential lamination includes first, second, and third nanofiber layers. The first nanofiber layer includes multiple first nano-powder composite nanofibers. The second nanofiber layer is stacked on the first nanofiber layer and includes multiple second nano-powder composite nanofibers. The third nanofiber layer is stacked on the second nanofiber layer and includes multiple third nano-powder composite nanofibers. The composite nanofiber filtration layer is formed of multiple nanometer composite nanofiber layers, so that the high-adsorption-performance nanofiber air filter medium shows improved performance.

Air filters and masks containing activated carbon cloth material, optionally with silver included, are described that are effective at removing virus from the air, immobilizing, and inactivating. The filters and masks can immobilize and inactivate a virus. The filters and masks are useful for protecting a user against coronavirus such as SARS-CoV-2.

A screw feeder includes: a case that includes a material putting-in portion through which a fluff material is put in and a material putting-out portion through which the fluff material is put out below the material putting-in portion; and a screw that includes a rotational shaft and a blade portion, the rotational shaft being provided rotatably inside the case, the blade portion being spirally mounted on the rotational shaft; wherein the screw is rotated with repeated alternation of a slope-down direction in which the blade portion slopes downward spirally in a vertical direction and a slope-up direction in which the blade portion slopes upward spirally in the vertical direction.

The present invention is directed at fiber compositions for noise abatement and compression resistance for vehicular applications. More particularly, the fiber compositions are suitable to replace expanded polypropylene foam pads utilized in vehicular carpet applications.