Provided are a fiber material for liquid purification, being inexpensive, capable of reducing cleaning, and suppressing the generation of fine particles, and a cleaning device including the same. The present invention relates to a nonwoven fabric base material containing a mixed resin of polyolefin and a styrene-olefin copolymer in a single fiber, which is used as a fiber material for liquid purification for removing a biotoxic substance from liquid, wherein the mass ratio of the polyolefin to the mass of the mixed resin is 10% by mass or more and 80% by mass or less and the mass ratio of all styrene residues to the mass of the styrene-olefin copolymer is 5% by mass or more and 50% by mass or less, a fiber material for liquid purification including the nonwoven fabric base material, a method for producing the material, and a cleaning device including the material.

A dry-laid nonwoven fabric production method may include: affixing resin particles including polymeric molecules to a plurality of first fibers; applying an external force to the plurality of first fibers to which the plurality of resin particles are affixed so as to reduce gaps between the first fibers; relieving the applied external force to form in gas, from the plurality of resin particles, second fibers each having an outer diameter smaller than that of the first fiber and the outer diameter of each of the second fibers have a value in a range from 30 nm to 1.0 m; and forming a nonwoven fabric that is a fiber composite including the first fibers and the second fibers.

A process for forming a nonwoven fabric is provided. The process includes depositing at least a first nonwoven layer comprising a first plurality of interlaid individual meltspun fibers, which may comprise a plurality of monocomponent fibers having different onset of melting temperatures, bicomponent fibers having distinct fiber components having different onset of melting temperatures, and/or a plurality of different bicomponent fibers having one or more distinct components having different onset of melting temperatures, directly or indirectly onto a moving collection belt to form a precursor nonwoven. The process includes subjecting the precursor nonwoven web to a heat-setting operation (HSO) to heat-set the first plurality of interlaid individual meltspun fibers to form an intermediate nonwoven fabric, followed by consolidating the intermediate nonwoven fabric to provide that nonwoven fabric.

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.

Wound dressing articles comprising a nonwoven web comprising a plurality of fibers having grafted pendant hydrophilic groups, methods that use high energy irradiation for making a plurality of fibers having grafted pendant hydrophilic groups, useful for making wound dressing articles.

The present invention provides dry-creped absorbent material comprised of gelling fibres intended for use particularly, but not necessarily exclusively, as wound dressings or as a component (absorbent substrate) of a wound dressing, as well as wound dressings comprising the absorbent material.

A hydroentangled integrated composite nonwoven material, includes a mixture of randomized continuous filaments, splittable shortcut staple fibers, and optionally non-splittable staple fibers. The splittable fibers should be 3-16 mm long bicomponent fibers. Preferably there should be no thermal bonding points between the filaments. The nonwoven material has improved textile feeling and reduced two-sidedness. The continuous filaments should preferably be spunlaid filaments. Some of the staple fibers can be colored. A process of producing such a nonwoven material is disclosed.

Multicomponent filaments, nonwoven webs made from the multicomponent filaments, and processes for forming nonwoven webs are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement additive. Specifically, the crimp enhancement additive is added to a polymeric component and increases the crystallization and/or solidification rate of that polymeric component. The use of the crimp enhancement additive in one of the polymeric components of the multicomponent filaments allows the multicomponent filaments to inherently crimp without the use of any post-crystallization/solidification heat treatment. The process produces webs with improved fabric density and softness properties. The crimp enhancement additive incorporated into the filaments is a polyolefin homopolymer, in particular a polypropylene homopolymer.

The present application discloses a preparation method of SM non-woven fabrics for roof anti-slip, which belongs to the technical field of roofing materials, comprising preparing spunbond non-woven fabric raw materials, preparing spunbond non-woven fabrics, preparing meltblown non-woven fabric raw materials, preparing primary SM non-woven fabrics, and post-processing; the spunbond non-woven fabric raw materials are prepared by uniformly mixing polypropylene with a low melt flow index, polypropylene with a high melt flow index, sodium alginate, antioxidant 1010, zinc stearate, ultraviolet absorber UV-531, polyvinyl alcohol, reinforcing agent, adhesive agent, and nano titanium dioxide. The present application can avoid the problem that the SM non-woven fabrics cannot be fully bonded together and are easy to delaminate when being combined, can also solve the problem of fabric breakage during high-speed production, and can also improve the wear resistance, strength, and stiffness of SM non-woven fabrics. The prepared SM non-woven fabrics have low production costs, are easy to recycle, and have good environmental performances.

The disclosure relates to composite nonwoven fibrous web including an embedded phase having a population of particulates forming a substantially continuous three-dimensional network, and a matrix phase comprising a population of fibers forming a three-dimensional network around the particulates. The disclosure also relates to methods of making a composite nonwoven fibrous web including forming an embedded phase having a population of particulates in a substantially continuous three-dimensional network, and forming a matrix phase comprising a population of fibers forming a three-dimensional network around the particulates. Articles made from a composite nonwoven fibrous web prepared according to the methods as described above are also disclosed. In exemplary embodiments, the articles may include gas filtration articles, liquid filtration articles, sound absorption articles, surface cleaning articles, cellular growth support articles, drug delivery articles, personal hygiene articles, and wound dressing articles.