摘要:
The present invention is directed to a multi-axial fabric which is dimensionally-stabilized. The composite fabric has a substrate and a plurality of first, second, third, and fourth strands disposed across the substrate and oriented in non-parallel directions with respect to one another. Binding fiber secures the aforementioned strands to the substrate. The composite fabric can be substantially free of more than three strands overlapping at a common position on the substrate. A road employing the multi-axial fabric is described.
摘要:
A system and a method are disclosed for weaving SC fabrics using multiple weft insertion. The system and method may be used to increase the thread count of the SC fabric while reducing fabric costs.
摘要:
Described herein is a protected container 10 employed to prevent soil erosion. The protected container is a geotextile container having a debris shield disposed thereon. The debris shield protects the integrity of the geotextile container by providing a strike barrier which has air and water flow capabilities. The debris shield is a composite fabric comprising a woven protective layer having abrasion resistance and a woven three-dimensional layer which provides impact dampening and energy dissipation.
摘要:
A monoaxially-oriented polymeric film material formed from an impact copolymer and having increased toughness relative to films that are monoaxially-oriented at conventional temperatures. A process for imparting high cross machine toughness to polymer films comprises forming a film; subjecting the film to monoaxial orientation, drawing the film; tempering the film, and annealing the film.
摘要:
Novel woven materials, producible by a new weaving method, are described that comprise single or doubled warps and wefts in the form of tapes that are preferably partially stabilized type of fibrous tape. These fibres are caused to occur in a non-linear arrangement during the weaving process. The non-linear fibres can be subsequently straightened by pulling the tape longitudinally. The doubled warps and wefts comprise disconnected tapes. Such separateness of constituent tapes of doubled warp and weft tapes enables them to be slid/slipped relative to each other by pulling longitudinally and laterally without causing any alteration in the woven structure. These novel fabrics solve the problem of uneven fibre distribution and orientation arising from crumples/wrinkles due to compression and stretches due to extension, at the inner and outer sides respectively, when tape-woven fabrics are curved into shapes. Further, by using doubled warps and wefts fabrics with relatively flat/planar sections and thicker/raised wide rib sections can be also created that resemble a bit like a profiled material in its cross-section. Other fabrics like those comprising slant/oblique weft tapes, shaped warp and weft tapes, formed shape within its body are also producible.
摘要:
A novel method of weaving is described wherein warp and weft are supplied in the form of tapes, and not yarns. In at least one embodiment, the method, which is preferably carried out in vertical format, essentially includes feeding positively flat tensionless warp for shedding and taking-up; selecting, feeding positively and inserting weft tapes of different widths and thickness by gripping in its fore end in flat condition; depositing inserted weft at fabric-fell in a flat condition without beating-up; and taking-up the woven material that comprises either same or different widths of flat wefts. The warps and wefts, preferably of partially stabilized type of fibrous tapes, can be overfed in a tensionless, positive and controlled manner when required to make the fibres of constituent fibrous tapes occur non-linearly in the form of wave/texture during weaving. Extra warps and wefts can be also fed in tandem whereby the warps and wefts become composed of two or more unconnected, mutually slipping, flat tapes in a stacked arrangement. These doubled warps and wefts function effectively as a unit warp and weft during weaving and in the fabric. In at least one embodiment, the method also makes possible to produce other materials such as those with slant weft tapes in relation to warp, having a shape within the body of the fabric and warp and weft tapes of shaped edges. A variety of fibrous and non-fibrous materials are equally well processed.
摘要:
A fabric having moisture management function, which has a structure simulating plant structure and comprises at least two layers as follows: a bottom layer, which is of a leno or matt structure simulating main stem of plant, in which a number of yarns are grouped together to form a plurality of fabric units; said bottom layer can be adapted to be in contact with human skin; a top layer, which is of a plain weave structure, in which the yarns of said fabric unit further split in the top layer to form such a plain weave structure, simulating the branching in plant structure; wherein, in said fabric, water can be transported from the bottom layer to the middle layer and further to the top layer where it evaporates due to the improved capillarity of the yarns so as to provide better moisture management function.
摘要:
A unidirectional geotextile fabric for use in reinforcement of earthen retaining walls, embankments, slopes and related structures. The fabric is an open grid of high modulus of elasticity strands extending in the weft direction and strands of comparatively lower modulus of elasticity material extending in the warp direction. The fabric is preferably coated with a curable resinous material of sufficient thickness to protect the glass strands from breaking as the fabric is rolled onto cores and unrolled at the job site. When laying the fabric, a roll of the fabric is placed at one end of the face of the earthen structure being constructed and simply unrolled in a direction generally parallel to the structure's face. Because the high modulus strands of the fabric are the weft strands they extend and inhibit soil movement in a direction substantially perpendicular to the face of the structure.
摘要:
A three-dimensional net includes front and rear base nets interconnected with connecting yarn with a predetermined space therebetween. The front and rear base nets each include braid parts forming a meshed structure which presents mesh openings bounded by intersections of the braid parts, each of the braid parts including at least one wale. The mesh openings of a first of the front and rear base nets is larger than the mesh openings of a second of the front and rear base nets, and the front and rear base nets are connected together by passing the connecting yarns between all the braid parts of the first base net and a corresponding portion of the braid parts of the second base net in positions opposed to the braid parts of the first net. As such, a remaining portion of the braid parts of the second net, which subdivide areas bounded by the corresponding braid portion of the braid parts connected to the first braid net by the connecting yarns, and which thereby form smaller mesh openings in the second net, are not connected by the connecting yarns with the braid parts of the first net. In another embodiment, both the front and rear base nets have mesh openings of equal size, and are connected together by passing the connecting yarns between a portion of the braid parts which bound areas each including at least two mesh openings, a remaining portion of the braid parts subdividing the bounded areas.
摘要:
Woven or laid structures comprising at least two systems of parallel threads, at least one of these thread systems having more than 10 threads per centimeter and comprising at least 10%, based on the thread system, of hybrid yarns comprising reinforcing filaments and lower melting matrix filaments composed of thermoplastic polymers. In such woven or laid structures, the matrix component can be melted to form textile sheet materials of adjustable gas and/or liquid permeability, which are especially useful for manufacturing airbags.