A base fabric forms a warp-weft double woven structure. In the base fabric, the base fabric is made of an MD yarn in a MD direction and a CD yarn in a CD direction, and the base fabric includes a weave repeat. In the weave repeat, the CD yarn includes an upper CD yarn and a lower CD yarn, the MD yarn is woven into both of the upper CD yarn and the lower CD yarn, the MD yarn includes at least one combination of a first MD yarn and a second MD yarn adjacent to the first MD yarn in the CD direction, the weave repeat includes first to fourth structural units, and the weave repeat includes a location at which the first and the second structural units are formed in pairs on both surfaces of the base fabric.

A base fabric forms a warp-weft double woven structure. In the base fabric, the base fabric is made of an MD yarn in a MD direction and a CD yarn in a CD direction, and the base fabric includes a weave repeat. In the weave repeat, the CD yarn includes an upper CD yarn and a lower CD yarn, the MD yarn is woven into both of the upper CD yarn and the lower CD yarn, the MD yarn includes at least one combination of a first MD yarn and a second MD yarn adjacent to the first MD yarn in the CD direction, the weave repeat includes first to fourth structural units, and the weave repeat includes a location at which the first and the second structural units are formed in pairs on both surfaces of the base fabric.

The present invention discloses a high-performance PPS fiber structure and production method and use thereof. The high-performance PPS fiber structure is woven fabric made from PPS fibers in 0.1 to 12 m cross sectional diameter, and the maximum pore size of the PPS fiber structure is 20 m or smaller. The PPS fiber structure disclosed in the present invention has the advantages of high gas impermeability and good hydrophilicity, also has the advantages of simple process, low energy consumption and zero environmental pollution, and can be used in diaphragms for electrolytic apparatuses, high-temperature liquid filter materials and insulating materials.

A combustion membrane for a gas burner including a fabric having two opposite fabric surfaces, which form a combustion surface exposed on the outer side and an inner surface facing towards an inner side respectively, where the fabric forms an interlacing of metal wires having warp threads and weft threads transverse to the warp threads, where the fabric has localized first areas with reduced gas permeability, alternated with localized second areas with higher gas permeability than the first areas, and both the first areas and the second areas have an extension, in at least one direction in the plane of the fabric, greater than the space occupied by at least three consecutive warp threads in the weft direction and greater than the space occupied by at least three consecutive weft threads in the warp direction.

A combustion membrane for a gas burner including a fabric having two opposite fabric surfaces, which form a combustion surface exposed on the outer side and an inner surface facing towards an inner side respectively, where the fabric forms an interlacing of metal wires having warp threads and weft threads transverse to the warp threads, where the fabric has localized first areas with reduced gas permeability, alternated with localized second areas with higher gas permeability than the first areas, and both the first areas and the second areas have an extension, in at least one direction in the plane of the fabric, greater than the space occupied by at least three consecutive warp threads in the weft direction and greater than the space occupied by at least three consecutive weft threads in the warp direction.

A combustion membrane for a gas burner including a fabric having two opposite fabric surfaces, which form a combustion surface exposed on the outer side and an inner surface facing towards an inner side respectively, where the fabric forms an interlacing of metal wires having warp threads and weft threads transverse to the warp threads, and where both fabric surfaces form ribs in high relief alternating with valleys in low relief and that both the ribs and the valleys have an extension, in at least one direction in the plane of the fabric, greater than the space occupied by at least three consecutive warp threads in the weft direction and greater than the space occupied by at least three consecutive weft threads in the warp direction.

A combustion membrane for a gas burner including a fabric having two opposite fabric surfaces, which form a combustion surface exposed on the outer side and an inner surface facing towards an inner side respectively, where the fabric forms an interlacing of metal wires having warp threads and weft threads transverse to the warp threads, and where both fabric surfaces form ribs in high relief alternating with valleys in low relief and that both the ribs and the valleys have an extension, in at least one direction in the plane of the fabric, greater than the space occupied by at least three consecutive warp threads in the weft direction and greater than the space occupied by at least three consecutive weft threads in the warp direction.

A method for fabricating a liner for a tubular hose, comprising selecting a combination of functional filaments and filling filaments, the functional filaments being elastic filaments, and combining the functional filaments and the filling filaments, in a ratio selected according to a target radial expansion and compression of the liner, under a selected twisting tension and with a selected twist number; into filler yarns; selecting warp yarns according to a target rigidity in a longitudinal direction of the liner; twisting together a number of the filler yarns into filler threads and the warp yarns into warp threads; and weaving the liner around the hose by interlacing the filler threads and the warp threads.

A method for fabricating a liner for a tubular hose, comprising selecting a combination of functional filaments and filling filaments, the functional filaments being elastic filaments, and combining the functional filaments and the filling filaments, in a ratio selected according to a target radial expansion and compression of the liner, under a selected twisting tension and with a selected twist number; into filler yarns; selecting warp yarns according to a target rigidity in a longitudinal direction of the liner; twisting together a number of the filler yarns into filler threads and the warp yarns into warp threads; and weaving the liner around the hose by interlacing the filler threads and the warp threads.

Provided is an eccentric core-sheath composite false-twisted yarn, in which, in a cross section of a composite fiber composed of two polymers that are a component A and a component B, the component A is completely covered with the component B, a ratio S/D of a minimum thickness S of a thickness of the component B covering the component A to a fiber diameter D is 0.01 to 0.1, a peripheral length of a fiber at a portion where a thickness is 1.05 times or less the minimum thickness S is or more of a peripheral length of the entire fiber, a difference in modification degree between the single yarns is 0.2 or more, and a crimping rate is 30% or more.