There are provided porous fibers having excellent removal performance with respect to a material to be purified; and a purification column into which an adsorbent material obtained by bundling the fibers is incorporated. The porous fibers satisfying the following conditions (a) and (b) and having a shape in which three or more projected parts are continuously present in the lengthwise direction on the periphery part of a solid-state fiber: (a) The modification degree Do/Di in a cross section is 1.2 to 6.6 when the diameter of the inscribed circle is denoted by Di and the diameter of the circumscribed circle is denoted by Do., and (b) The specific surface area of pores is 50 m.sup.2/g or more.

Aspects herein relate to a garment that comprises a first knit textile comprising a cell configuration having a knitted perimeter portion and a knitted central portion that is integrally knitted with and enclosed within the knitted perimeter portion. The knitted perimeter portion comprises a first percentage by weight of a first yarn type and a second yarn type. The knitted central portion comprises only the second yarn type. The knitted textile further comprises a second knit textile that is integrally knit with the first knit textile and comprises a plurality of linear knit portions. A first linear knit portion comprises a first percentage by weight of the first yarn type and a second linear knit portion comprises solely the second yarn type. The first linear knit portion of the plurality of linear portions is directly interlooped with a second leaner knit portion.

An electrospun polymer nanofibrous membrane that provides high filtering efficiency and excellent porosity is disclosed herein. The membrane may be treated with one or more antimicrobial or antiviral agents. The treatment may preferably be a coating of one or more antiviral agents on the surface of the membrane. Alternatively, one or more antiviral agents may be impregnated into the membrane. The membrane may additionally or alternatively be impregnated with one or more metal-organic frameworks (MOFs). The membrane has a high filtering efficiency and sufficient porosity to provide breathability characteristics. In some embodiments, the membrane is suitable for use in making facemasks and respirators that are highly resistant to infectious pathogens and/or other small particulates. In some embodiments, the membrane is suitable for use in HVAC applications. In some embodiments, the membrane is suitable for use in removal of VOCs and CO.sub.2 in conjunction with a carbon nanofiber membrane.

Three dimensional nanofiber structures are provided and methods of production thereof.

Disclosed is a method for producing a hollow fiber carbon membrane using a hollow fiber carbon membrane-forming material by means of a dry method or dry-wet method comprising a spinning step, a drying step, an infusibilization step, and a carbonization step as basic steps; wherein in the infusibilization step, heat treatment is performed at least two times at different temperatures, with the second temperature being higher than the first temperature. It is preferable that the second heat treatment is performed directly after the first treatment is performed, without once cooling to room temperature. The obtained hollow fiber carbon membrane has improved permeability, without reducing its separation coefficient.

According to one or more embodiments, a three-dimensional spacer fabric comprises a first knit layer, a second knit layer and monofilament spacer yarns extending between and connecting the first and second knit layers. The first knit layer comprises pillar stitches and lay in stitches working together to form the first knit layer and the second knit layer comprising a mesh fabric formed of a mirrored stitch formation. The spacer fabric has a compression force deflection, as measured by ISO3386-1, in the machine direction (MD) of 10 to 15 kPa. The spacer fabric can be secured to a trim material to form a trim cover.

Disclosed are hollow fibers suitable for use in dialysis in an outside-in configuration. For such fibers, it is desirable that the fiber have a low albumin sieving coefficient and have a permeability high enough to be considered a High Flux dialyzer, and it is desirable that the outer (blood-facing) surface have a sufficiently small roughness and be hydrophilic. It is desirable that there be a selective layer on the outer surface and, interiorly of that, a porous structurally supportive region, which may contain elongated macrovoids. Such a fiber may be spun through a triple-concentric spinneret that produces a bore liquid surrounded by dope surrounded by a shower. The shower and the coagulation bath may be pure water, which is a non-solvent. The process may be performed at room temperature. Spinning parameters are discussed.

A composite electrode includes two or more types of fibers forming a fiber network, comprising at least a first type of fibers and a second type of fibers. The first type of fibers comprises a first polymer and a first type of particles. The second type of fibers comprises a second polymer and a second type of particles. The second polymer is same as or different from the first polymer. The second type of particles are same as or different from the first type of particles.

A weaved fabric, a weaving method, and a soft component of a speaker made from the weaved fabric or fabric manufactured by the weaving method are provided. The weaved fabric has multiple larger meshes and multiple smaller meshes and each one of the larger meshes is surrounded by six smaller meshes. The weaving method can manufacture a fabric with the larger meshes and the smaller meshes. With the yarns forming the larger meshes and the smaller meshes and the larger meshes and the smaller meshes forming a resilience structure, the resilience and evenness of the fabrics are improved and the porosity of the fabrics is higher. Therefore, with a soft component made from the fabrics, tensions on the fabrics may keep even during working, and the amplitudes in the positive direction and the negative direction are more symmetrical.

A method of treating an aneurysm, including determining a diameter associated with a vessel having the aneurysm; selecting one of a plurality of braided implants for treating the vessel, wherein each braided implant comprises a porosity substantially consistent over up to a 1 mm diameter range, each braided implant configured to provide consistent porosity over different diameter ranges; and treating the vessel with the one of the plurality of braided implants.