An object of the present invention is to provide a highly air-permeable woven fabric whose air permeability does not easily deteriorate even after repetitive washing and which has a good fabric quality. The woven fabric of the present invention comprises warp threads constituted by substantially quadrilateral shaped filaments and weft threads constituted by substantially quadrilateral shaped filaments. The warp threads and the weft threads overlap each other in an alternating manner forming crossover points comprising front threads and back threads, such that the warp threads and the weft threads alternate constituting the front threads. The crossover points comprise first crossover points and second crossover points. The first crossover points are the crossover points where the substantially quadrilateral shaped filaments constituting the front threads are aligned in a line. The second crossover points are the crossover points where at least 60% of the substantially quadrilateral shaped filaments constituting the front threads are aligned in a line. The rest of the substantially quadrilateral shaped filaments constituting the front threads overlap above and below in a thickness direction of the woven fabric, wherein, in a structure constituting five warp threads, six weft threads, and 30 crossover points, the total number of the first crossover points among thirty crossover points is not less than 10% and not more than 90%.

A material sheet is formed of a woven fabric of polymer tapes, wherein the width of a tape varies less than 2% on average in the longitudinal direction of the tape. Processes for the preparation of the material sheet, and to a ballistic resistant article comprising the material sheet are also provided. A ballistic resistant article which includes the material sheet exhibits excellent antiballistic properties.

A method of making a yarn is disclosed. A plurality of fibers is obtained by: preparing a slurry of polymer mixed with water insoluble nanoparticles of electrolytic copper, and extruding the slurry through a spinneret that includes a plurality of holes which impart a generally X-shaped cross-section to the plurality of fibers. The plurality of fibers are spun together to form the yarn.

A polyester base fabric for airbags woven from polyester fiber has an energy absorption amount in a warp direction (EW) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm.sup.2; an energy absorption amount in a weft direction (EF) when the polyester base fabric is elongated up to a stress of 118 N/cm and subsequently relaxed to a stress of 0 N/cm of 1.0 to 3.0 J/cm.sup.2; and a ratio (EW/EF) of the energy absorption amount in the warp direction (EW) to the energy absorption amount in the weft direction (EF) of 0.5 to 2.0.

A sheet of material suitable for roofing or industrial wrapping applications has an anti-skid surface formed by ridges of twisted tapes. The sheet comprises a woven scrim of warp tapes and weft tapes. Some of the tapes are twisted about their longitudinal axis, for example about (25) to (400) revolutions per meter, to form ridges having a height substantially greater than the thickness of the tapes. The ridges impart an anti-skid surface to the sheet. The scrim is bonded to a coating or film to make the sheet waterproof.

The invention relates to a fabric. The fabric (10) comprises, in the fabric material, threads (11a1, 12a1; 13a1, 14a1) of a material conducting electricity well, by means of which electro-magnetic radiation and magnetic fields are filtered. The threads (11a1, 12a1; 13a1, 14a1) are placed next to each other. Furthermore, the threads are wound around their winding axes (X1, X2; Y1, Y2) so that the first thread (11a1, 13a1) in the fabric is wound clockwise, and the second thread (12a1, 14a1) next to it is wound counterclockwise.

The invention relates to a fabric. The fabric (10) comprises, in the fabric material, threads (11a1, 12a1; 13a1, 14a1) of a material conducting electricity well, by means of which electro-magnetic radiation and magnetic fields are filtered. The threads (11a1, 12a1; 13a1, 14a1) are placed next to each other. Furthermore, the threads are wound around their winding axes (X1, X2; Y1, Y2) so that the first thread (11a1, 13a1) in the fabric is wound clockwise, and the second thread (12a1, 14a1) next to it is wound counterclockwise.

Provided is a down-proof woven fabric which is highly effective to prevent leakage of down from a seam of a product, even having a low cover factor, the woven fabric containing a single yarn having a convex portion and a concave portion in a cross section, in which an air permeability is 0.1 cm.sup.3/cm.sup.2.Math.s or more and 2.0 cm.sup.3/cm.sup.2.Math.s or less; a total fineness is 5 dtex or more and 80 dtex or less; a total cover factor of a warp and a weft is 1500 or more and 2200 or less; a hole is formed in the woven fabric with a sewing machine needle having a cross-sectional diameter (thickness of a main body of the sewing machine needle) of 1.00 mm, and in an area having a radius of 1.5 mm about the hole, a total number of warps and wefts that are displaced by 0.08 mm or more with the sewing machine needle is 3 or less at 15 minutes after the sewing machine needle is pulled out from the woven fabric; and the following characteristics: (i) a fitting ratio of single yarns is 10% or more and 80% or less (ii) a laminating rate of the single yarn is 0.4 or more and 3.0 or less (iii) a number of convex portions of the single yarn is 2 or more and 12 or less (iv) the single yarn has a modification degree of 1.2 or more and 3.0 or less (v) a concave portion of the single yarn has a depth of 0.6 m or more and 8 m or less

CF=CF.sub.T+CF.sub.W where CF represents the total cover factor of the warp and the weft; CF.sub.T represents a cover factor of the warp; and CF.sub.W represents the cover factor of the weft.

An industrial fabric namely a conveyor belt configured to transport a web made from a non-woven material, the industrial fabric including an product side that is in contact with the woven material, and a machine side, which is in contact with conveying devices of an arrangement to produce the non woven material, wherein the fabric includes longitudinal threads that extend in a running direction of the web of the non-woven material and transversal threads perpendicular to the longitudinal threads which are woven together, wherein at least a portion of the longitudinal threads and/or transversal threads at least in a portion of a surface that is oriented towards the product side of the fabric are made from a polymeric material which includes at least a portion of a thermoplastic elastomeric material.

A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.