A depth filter with excellent filtration accuracy and pressure resistance performance even for fluids containing high density and high viscosity powder fine particles. A depth filter having a base material layer, a filtration layer, and a skin layer, in that order, wherein: the substrate layer and the skin layer are layers made by a nonwoven fabric being wound and thermally fused; the filtration layer is a laminate in which at least a nonwoven fabric and a net are laminated, being wound twice or more; and the nonwoven fabric contained in the filtration layer contains a mixed-fiber nonwoven fabric containing two or more types of fibers with mutually different average fiber diameters.

The present invention provides: a non-woven fabric for a sterilization packaging material, the non-woven fabric being capable of being compatible with all sterilization treatment methods and maintaining a sterile state in the interior without breaking even in a variety of environments in which the non-woven fabric can be assumed to be used as a sterilization packaging material; and a non-woven fabric for a sterilization packaging material, the non-woven fabric achieving both easy-peel properties that enable easy handling without breakage and barrier properties for retaining the sterile state in the interior. The non-woven fabric for a sterilization packaging material according to the present invention is characterized in having, as an obverse-layer heat seal surface, a fiber layer (I) that has a void ratio of 30-60% inclusive, and having, as a barrier layer, a fiber layer (II) that has a fiber specific surface area ranging from 1.0 m.sup.2/g to 10 m.sup.2/g and has a one-centimeter-equivalent fiber count of 800-1,000,000 inclusive per milligram, the fiber layer (I) and the fiber layer (II) being laminated. In addition, the non-woven fabric for a sterilization packaging material is characterized in having a weight-average fiber diameter of 3-30 μm inclusive and a formation coefficient of 1.0-5.0 inclusive.

The invention relates to a wearable article comprising an elastic laminate. The elastic laminate comprises a first web and a second web being in a face to face relationship with each other. The first web is a nonwoven web having a vertical wicking height after 60 seconds of less than 5 mm according to the test method set out herein. The second web is a nonwoven web having a vertical wicking height after 60 seconds of at least 5 mm.

A temporary antimicrobial roll-up floor cover includes a rugged upper layer that is impervious to water and pervious water vapor, and a lower antimicrobial wicking layer that quickly spreads water while transmitting water vapor, to facilitate evaporation of moisture that gets under the cover. The cover may also include one or more of a central layer containing a microporous membrane, a coating or film layer which may be perforated, and a stiffener lattice that resists folding, gathering and puckering without preventing the cover from rolling up. The coating layer adds additional resistance to folding, gathering and puckering without preventing the cover from rolling up. The coating may be perforated to increase water vapor transmission through the cover. One or more antimicrobial agents is incorporated into the wicking layer during extrusion of the airlaid mat forming the wicking layer.

A temporary roll-up floor cover includes a rugged upper layer that is impervious to water and pervious water vapor, and a lower antimicrobial wicking layer that quickly spreads water while transmitting water vapor, to facilitate evaporation of moisture that gets under the cover. The cover may also include one or more of a central layer containing a microporous membrane, a coating or film layer which may be perforated, and a stiffener lattice that resists folding, gathering and puckering without preventing the cover from rolling up. The coating layer adds additional resistance to folding, gathering and puckering without preventing the cover from rolling up. The coating may be perforated to increase water vapor transmission through the cover. One or more antimicrobial agents may be incorporated into the floor cover, for example, into the wicking layer during extrusion of the airlaid mat forming the wicking layer.

A nonwoven fiber assembly. The nonwoven fiber assembly includes a nonwoven fibrous web including a plurality of discontinuous fibers; and a nonwoven fabric at least partially surrounding the nonwoven fibrous web; the nonwoven fabric including a plurality of randomly-oriented fibers, the plurality of randomly-oriented fibers comprising: at least 60 wt % of oxidized polyacrylonitrile fibers; and from 0 to less than 40 wt % of reinforcing fibers having an outer surface comprised of a (co)polymer with a melting temperature of from 100° C. to 450° C.; and a fluoropolymer binder on the plurality of randomly-oriented fibers.

The present teachings relate generally to a gas-duct whose channel body is manufactured from a plastic material, wherein the channel body has at least one region replaced by a sound absorbing component being made at least partially from at least one non-woven layer. The present invention further relates to a HVAC- and Battery- and/or battery-charge-system and to a method of producing a gas-duct.

An abrasion resistant wipe and a manufacturing method therefor. The abrasion resistant wipe has an upper layer and a lower layer each being a meltblown fiber web and a middle layer being wood pulp fiber web; wherein the meltblown fiber web comprises meltblown fibers with fiber surface being high melting point resin and meltblown fibers with fiber surface comprising low melting point resin; there is a difference of ≥20° C. between melting point of the low melting point resin and melting point of the high melting point resin; percentage of the meltblown fibers with fiber surface comprising low melting point resin in total fibers of the meltblown fiber web is greater than 5%; the meltblown fibers of the meltblown fiber web penetrate in the wood pulp fiber web.

Laminated light-blocking decorative articles are prepared by applying an aqueous foamed opacifying composition to a non-woven fabric, drying, laminating a decorative fabric to the resulting dry foamed opacifying layer, and densifying that layer to have a thickness that is at least 20% less than before densifying. This operation can be carried out so that non-woven fabric, decorative fabric, and aqueous foamed opacifying composition are supplied in a single-pass, in-line operation to make any desired quantity of a laminated light-blocking decorative article. The applied aqueous foamed opacifying composition has 35%-70% solids and a foam density of 0.1-0.5 g/cm.sup.3. It is composed of (a) porous particles, (b) a binder material, (c) two or more additives comprising at least one foaming surfactant and at least one foam stabilizer, (d) an aqueous medium, and (e) at least 0.0001 weight % of an opacifying colorant that absorbs electromagnetic radiation having a wavelength of 380-800 nm.

A composite material including a plurality of discrete layers layered on top of each other. The composite material may include one or more nonwoven layers, which may be one or more needlepunched layers, one or more spun-bond layers, one or more include one or more fibrous material layers. The composite material may include one or more overmolded features from an injection molding process. The present teachings also contemplate methods of making the composite material.