A protective woven fabric of the present invention includes super fiber yarns. The warp of the woven fabric is a covered yarn (1, 4, 5) composed of two or more twisted inorganic filament yarns as core yarns (2a, 2b) and one or more super fiber yarns (3, 3a, 3b, 3c) as covering yarns that are wound and twisted around the core yarns (2a, 2b), and a weft thereof is a super fiber yarn. Preferably, the covered yarn is a W covered yarn in which a twist coefficient K of the covering yarns with respect to the core yarns is 2000 to 30000. Due to this, it is possible to provide a protective woven fabric that, even when the warp and the weft is squeezed or rubbed by the reed, heddles, etc., of a loom, has few defects such as fluff or fiber aggregates and which has a satisfactory weaving pattern while retaining a high protective function. A force required to cut this woven fabric is 50 N or more, preferably 60 N or more, as measured through a cutting test in accordance with JIS-T8052, even when the fabric is a monolayer woven fabric.

Provided are polyketone toothbrush bristles and a toothbrush comprising the same. The toothbrush bristles are made using a polyketone material having high rigidity, high elasticity and excellent wear resistance and thus shows reduced bristle gap-widening and increased service life. The toothbrush bristles obtained by using the polyketone according to the present disclosure have excellent elasticity and are suitable for removal of plaque on the severely indented tooth surfaces. Particularly, in the case of fine bristles, it is possible to remove interdental plaque, which, otherwise cannot be removed well by the conventional toothbrushes.

A forming fabric for a papermaking machine woven according to a repeating fabric weave pattern is provided. The fabric includes a PS layer having a PS surface, with the PS layer including PS warps and PS wefts interwoven in a first repeating pattern, and a MS layer having a MS surface, with the MS layer including interwoven MS warps and MS wefts. A plurality of pairs of binder weft yarns is provided, with each of the pairs of binder weft yarns comprising first and second binder weft yarns that are interwoven according to a binder weft pattern with the PS warps and the MS warps to bind the PS and MS layers together in the composite forming fabric, and each interchanges between the layers at exchange points. In each pattern repeat of the fabric weave pattern, each of the MS warps forms one or more MS warp knuckles over single ones of the MS wefts, the MS warp knuckles of the MS warps are arranged in a broken twill having an offset mirror symmetric arrangement, and a direction of the broken twill reverses after an equal number of MS warp knuckles.

A self-cleaning filtration media for use in hydrocarbon fluid filtration applications has a first layer on an upstream side and a second layer on downstream side of the self-cleaning filtration media. The first layer is composed of polyethersulfone nanofibers having a diameter of 50-1000 nm (0.05-1 micron) and a basis weight of at least 1 gsm. The second layer is a nonwoven substrate suitable for filtration applications. The self-cleaning filtration media exhibits a dust holding capacity of at least 6 mg/cm.sup.2 and a filtration efficiency of greater than 90% for 4 micron particles when the self-cleaning filtration media is tested according to ISO 19438 for fuel filtration and according to ISO 4548-12 for oil filtration. When the second layer includes glass fibers, the self-cleaning filtration media has a dust holding capacity of at least 10 mg/cm.sup.2 and a filtration efficiency of greater than 99% for 4 micron particles when the self-cleaning filtration media is tested according to ISO 19438 for fuel filtration and according to ISO 4548-12 for oil filtration. The self-cleaning filtration media also has a fuel-water separation efficiency of at least 99% when a flat sheet is tested according to ISO 16332; and a lifetime of at least 90 minutes when tested with fuel and oil according to ISO 19438 and ISO 4548-12 using Medium Test Dust and a pressure drop of 70 kPa.

A fabricated part for a high temperature operation including a non-metallic substrate formed of a polymer fabric of woven non-absorbent polymer filament. The substrate is heat-resistant and heat set at a temperature that is above a predetermined operating temperature of an operation of the fabricated part. The heat setting pre-shrinks/heat stabilizes the material, thereby reducing failure during use in high temperature and/or wet applications. The substrate is useful as an endless belt and other applications. The invention further includes an apparatus with a heating device configured to operate at the predetermined operating temperature, and the fabricated part within or extending through the heating device.

A fuel water separation medium for removing water from water-hydrocarbon emulsions is provided, wherein the fuel water separation medium comprises (A) a first layer comprising nanofibers, and (B) a second layer comprising a fibrous web wherein the fibrous web comprises cellulosic fibers.

A method of manufacturing a fabric structure for use in manufacturing a composite aircraft blade. The method comprises: combining yarns including both reinforcing material filaments and a matrix material with yarns of reinforcing material filaments and/or yarns including at least one filament of matrix material; or by combining yarns of reinforcing material filaments with yarns including at least one filament of matrix material; or by combining yarns each comprising both reinforcing material filaments and matrix material. Combining may comprise weaving, knitting or braiding. The matrix material may be a thermoplastic.

A 0 unidirectional yarn prepreg and a preparation method are disclosed. The 0 unidirectional yarn prepreg has high-strength filaments which are arranged in parallel to each other in an axial direction X of a winding roller around which unidirectional yarn prepregs are wound and a resin is impregnated. The method includes steps of: (i) weaving a fabric using a thermoplastic film tape as a warp and using high-strength filaments as wefts; and (ii) performing thermal compression on the woven fabric at a temperature in which the warp is melted. Also, a multiaxial prepreg composite material is prepared by simultaneously and continuously supplying the 0 unidirectional yarn prepreg A prepared as described above method and a 90 unidirectional yarn prepreg B prepared by a conventional warping method to a thermal compression roller, and performing thermal compression thereon.

Provided is a fabric for an air bag that is constituted by synthetic fibers, and the warp and the weft of the fabric have a tensile strength of 600 N/cm or more, an air flow rate of the fabric under a differential pressure of 20 kPa is 1.0 L/cm.sup.2.Math.min or less, and an average stress of the warp and the weft that is required to additionally elongate the fabric from a 1.0% elongation state to a 3.0% elongation state is 15 N/cm or more, and an average stress of the warp and the weft that is required to additionally elongate the fabric from the 3.0% elongation state to a 5.0% elongation state is 15 N/cm or more.

A self-cleaning filtration media for use in hydrocarbon fluid filtration applications has a first layer on an upstream side and a second layer on a downstream side of the self-cleaning filtration media. The first layer is composed of polyethersulfone nanofibers having a diameter of 50-1000 nm (0.05-1 micron) and a basis weight of at least 1 gsm. The second layer is a nonwoven substrate suitable for filtration applications. The self-cleaning filtration media exhibits a dust holding capacity of at least 6 mg/cm.sup.2 and a filtration efficiency of greater than 90% for 4 micron particles when the self-cleaning filtration media is tested according to ISO 19438 for fuel filtration and according to ISO 4548-12 for oil filtration. When the second layer includes glass fibers, the self-cleaning filtration media has a dust holding capacity of at least 10 mg/cm.sup.2 and a filtration efficiency of greater than 99% for 4 micron particles when the self-cleaning filtration media is tested according to ISO 19438 for fuel filtration and according to ISO 4548-12 for oil filtration. The self-cleaning filtration media also has a fuel-water separation efficiency of at least 99% when a flat sheet is tested according to ISO 16332; and a lifetime of at least 90 minutes when tested with fuel and oil according to ISO 19438 and Iso 4548-12 using Medium Test Dust and a pressure drop of 70 kPa.