Systems and methods are disclosed for producing multi-layer meltblown mats. The method includes depositing first meltblown fibers onto a first moving surface such as a conveyor belt to form a first layer of meltblown fibers, and depositing second meltblown fibers onto a second moving surface such as a conveyor belt to form a second layer of meltblown fibers. The first and second layers of meltblown fibers are fed through opposed rollers to form combined meltblown layers comprising the first layer of meltblown fibers and the second layer of meltblown fibers. The combined meltblown layers are bonded together to produce a bonded multi-layer meltblown sheet. The bonded multi-layer meltblown sheet has a first outer exposed surface formed by contact of the first layer of meltblown fibers with the first moving surface, and a second outer exposed surface formed by contact of the second layer of meltblown fibers with the second moving surface.

Embodiments relate generally to systems and methods for providing an anti-counterfeit element within a filtering mask. A method of manufacturing a filtering mask may comprise extruding a filtering material from a source of the filtering material; melt-blowing the extruded filtering material to form a plurality of fibers; collecting the melt-blown fibers onto an outer surface of a lathe, wherein the outer surface of the lathe comprises a logo pattern; forming a fiber material about the logo pattern on the outer surface of the lathe via the collected melt-blown fibers; removing the formed fiber material to create an anti-counterfeit layer for use in the filtering mask, wherein at least one surface of the anti-counterfeit layer comprises the logo pattern within the fiber material; and assembling the anti-counterfeit layer within the filtering mask.

A laminated sound absorption member including a plurality of fiber layers and a base material layer positioned between the fiber layers, wherein the laminated sound absorption member is characterized in that: the laminated sound absorption member includes at least two fiber layers; the fiber layers comprise fibers having an average fiber diameter of at least 500 nm and less than 5 m, and have a basis weight of 10-500 g/m.sup.2, a ventilation rate of 950 m/Pa.Math.s or less, and a thickness of less than 2.9 mm; and the base material layer is at least one selected from the group consisting of non-woven fabrics and woven fabrics, and has a basis weight of 80 g/m.sup.2 to 800 g/m.sup.2 and a thickness of 2.9 mm to 20 mm.

Sound-absorbing material includes a monolithic main layer which is made of non-woven fiber fabric and has two opposite faces delimiting the thickness of the monolithic main layer. The monolithic main layer has a density gradient in the direction of its thickness. The monolithic main layer has a gradient in the fiber count in the direction of its thickness which decreases, passing from a first face to a second face of the monolithic main layer. The density gradient has an inverse trend with respect to the gradient in fiber count.

Filter media comprising non-woven fiber webs having high performance are generally described. For instance, in some embodiments, a non-woven fiber web described herein has a relatively high value of gamma and/or a relatively high ratio of dust holding capacity to basis weight. As another example, in some embodiments, a non-woven fiber web described herein is capable of being loaded with dust relatively uniformly throughout its depth. This latter property may assist with increasing the gamma and/or the ratio of dust holding capacity to basis weight.

The present invention relates to a multilayer protective mask having antimicrobial properties, said mask comprising a body portion comprising: at least a first and a second fabric layers having random fiber configuration; a middle layer comprising a nanofiber membrane; and a third and a fourth fabric layers. The first fabric layer is disposed between the third fabric layer and the nanofiber membrane, and the second fabric layer is disposed between the fourth fabric layer and the nanofiber membrane. The first, the second, the third, and the fourth fabric layers have incorporated therein a synergistic combination of at least two metal oxide powders, comprising a mixed oxidation state oxide of a first metal and a single oxidation state oxide of a second metal, said combination having synergistic antimicrobial properties.

A degradable composite non-woven fabric being a layered structure with an upper surface layer, an intermediate fiber layer, and a lower surface layer in sequence. The upper and lower surface layers are mainly composed of degradable melt-blown fibers. The intermediate fiber layer is mainly composed of degradable water-absorbing fibers, wherein the weight of fibers of the intermediate layer accounts for more than 65% of the total weight of the composite non-woven fabric, and there are fiber interwoven regions between the upper surface layer and the intermediate fiber layer, as well as between the lower surface layer and the intermediate fiber layer.

Aspects herein are directed to a recyclable, asymmetrical-faced composite nonwoven textile suitable for use in apparel and other articles and methods of making the same. In example aspects, the asymmetrical-faced composite nonwoven textile includes a first face formed, at least in part from a first entangled web of fibers and an opposite second face formed, at least in part from a second entangled web of fibers. When incorporated into an article of apparel, the first face forms an outer-facing surface of the article of apparel, and the second face forms an inner-facing surface of the article of apparel. The first face includes features making it suitable to form the outer-facing surface such as resistance to abrasion, and the second face includes features making it suitable to form an inner-facing surface such as a soft hand.

A fabric suitable as an alcohol repellent fabric is provided. The fabric includes a fibrous substrate including a first outermost surface and a second outermost surface, in which a non-fluorinated barrier coating (NFBC) or a fluorinated barrier coating (FBC) is located on at least a portion of a first outermost surface of the fabric, at least a portion of a second outermost surface of the fabric, or both.

A composite wiping non-woven fabric with a layered structure, having an upper surface layer, a middle fiber layer, and a lower surface layer; the upper surface layer and the lower surface layer of the composite wiping non-woven fabric are formed by melt-blown fibers, and the middle fiber layer is formed at least by viscose fibers: a weight of the middle fiber layer is greater than or equal to 65% of a total weight of the composite wiping non-woven fabric; there are fiber interlacing and intertwining areas between the upper surface layer and the middle fiber layer, as well as between the lower surface layer and the middle fiber layer.