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.

A fine denier composite non-woven fabric comprising an upper layer fine denier fiber web composed of fibers with a fiber denier less than or equal to 1.0 denier and a lower layer coarse denier fiber web composed of fibers with a fiber denier of 2.0 deniers to 12.0 deniers; the upper layer fine denier fiber web being composed of side-by-side bi-component crimped spunbond long fibers, and adjacent fibers being bonded to each other through surface melting to form a fiber web.

The invention relates to a reinforcing material (1) consisting of a unidirectional reinforcing web (2) formed of one or more carbon reinforcing yarns (3), associated on each of its faces with a veil of polymeric fibers (4, 5) chosen from among nonwoven materials, the polymeric portion of the reinforcing material representing from 0.5% to 10% of the total weight of the reinforcing material (1), and preferably from 2% to 6% of its total weight, said unidirectional reinforcing web (2) comprising one or a series of reinforcing yarns (3) individually twisted having a twist of 3 turns/m to 15 turns/m, preferably from 6 turns/m to 12 turns/m.

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 ?m or less; and a hydrophilic agent.

A development medium for flexographic heat development, the development medium having a porosity of 35% or more and 95% or less, and an elastic recovery rate of 40% or more and 99% or less.

Flocked substrates are provided as well as methods of use thereof and methods of making.

A plastic composite includes a face sheet layer consisting of poly(methyl methacrylate) (PMMA) or acrylic styrene acrylonitrile (ASA); a long fiber injection (LFI) layer disposed on a lower surface of the face sheet layer and consisting of polyurethane foam including reinforcing fiber; and a rib pattern layer formed on a lower surface of the LFI layer and comprising a plurality of ribs.

Described are composite grid structures that have a plurality of ply layers, each one of the plurality of ply layers comprising a plurality of first elongate tapes oriented in a first direction and a plurality of second elongate tapes oriented in a second direction, the second direction being offset from the first direction by an angle of at least 25 degrees. In the grid structures: each of the first elongate tapes has a first length extending between opposing ends of each of the plurality of first elongate tapes and a first midpoint intermediate the opposing ends, and each of the second elongate tapes has a second length extending between opposing ends of each of the plurality of second elongate tapes and a second midpoint intermediate the opposing ends. Associated composite laminate structures, grid structures, and methods of manufacturing and/or using the same are also disclosed.

An embodiment sound-absorbing material including a surface layer including low-melting (LM) fibers and melt-blown (MB) fibers and a sound-absorbing layer disposed on at least one side of the surface layer. An embodiment method of manufacturing a sound-absorbing material includes spinning melt-blown (MB) fibers, manufacturing a surface layer by mixing the melt-blown (MB) fibers with low-melting (LM) fibers, laminating a sound-absorbing layer on the surface layer, and hot-pressing a surface layer/sound-absorbing layer in which the sound-absorbing layer is laminated on the surface layer.

A non-woven protective clothing against blood and viruses is composed from a non-woven fabric layer, which has two surfaces; and a moisture-permeable layer, which is a porous film that is laminated to one of the surfaces of the non-woven fabric layer; and an elastic pore filling layer, which is a hydrophilic polyurethane. The elastic pore filling layer is coated or printed onto the surface of the moisture-permeable layer, and the thickness of the elastic pore filling layer is thinner than that of the moisture-permeable layer. The synthetic blood permeability of the non-woven protective clothing against blood and viruses can resist a pressure of 2.0 psi for one minute, and the Phi-X174 bacteriophage penetrability thereof can resist a pressure of 2.0 psi for one minute.