The invention relates to conductive multi-layer materials for leak detection applications. The electrically conductive multi-layer material comprises a woven glass fibre web (2) having a binding agent (4) and a fire retardant compound (5), which is impregnated with electrically conductive carbon particles (6), wherein one side of the glass fibre web (2) is coated with metallic electrically conductive layer (10) by the means of vacuum deposition.

The invention relates to conductive multi-layer materials for leak detection applications. The electrically conductive multi-layer material comprises a woven glass fibre web (2) having a binding agent (4) and a fire retardant compound (5), which is impregnated with electrically conductive carbon particles (6), wherein one side of the glass fibre web (2) is coated with metallic electrically conductive layer (10) by the means of vacuum deposition.

The invention relates to a fabrication method of a conductive fabric, a multi-pressure sensor for a fiber type, and a measuring method of multi-pressure, and more specifically, to a fabrication method by vapor phase polymerization of a conductive fabric having a resistance value which changes depending on pressure, and a method of manufacturing and operating a multi-pressure sensor for a fiber type which is manufactured by using the fabricated conductive fabric, and thus which has high resistance to moisture and repeated loading, is manufactured with lower costs than an existing pressure sensor, is capable of measuring both dynamic and static pressures using a principle of a piezo-resistive sensor, has a simple circuit configuration, and is strong against a high-frequency disturbance.

A method of producing inorganic-particle-combined fiber includes: a beating step including beating chemical fiber in a wet manner or a dry manner; and a composite fiber forming step including forming inorganic-particle-combined fiber which is composite fiber composed of the chemical fiber and inorganic particles, the composite fiber forming step including synthesizing the inorganic particles in a slurry that contains the chemical fiber after the beating step.

A conductive woven fabric consisting of multiple weft yarns and multiple warp yarns and having at least one conductive part, wherein one of weft and warp is consisting of non-conductive yarns and the other of weft and warp is consisting of conductive yarns and non-conductive yarns which are parallel to each other, characterized in that said non-conductive yarns parallel to the conductive yarns are shrinking-processed yarns and the conductive part is formed by a repeating woven structure wherein the conductive yarns pass through the upper side of at least two of non-conductive yarns orthogonal to the conductive yarns and then pass through the back side of at least one of non-conductive yarns orthogonal to the conductive yarns, and a process for producing the same, and also provides a conductive member using the same.

A method of generating a coiled actuator fiber that includes twisting a fiber to generate a twisted fiber; wrapping the twisted fiber around a core yarn or fiber to generate a coil in the twisted fiber, which generates a coiled twisted fiber; setting the coiled twisted fiber by heat or chemical treatment; and removing at least a portion of the core yarn or fiber to generate a coiled actuator fiber.

A method of generating a coiled actuator fiber that includes twisting a fiber to generate a twisted fiber; wrapping the twisted fiber around a core yarn or fiber to generate a coil in the twisted fiber, which generates a coiled twisted fiber; setting the coiled twisted fiber by heat or chemical treatment; and removing at least a portion of the core yarn or fiber to generate a coiled actuator fiber.

A heat insulation sheet includes a fiber sheet having spaces therein and a silica xerogel held in the spaces of the fiber sheet. The heat insulation sheet includes a thick region and a low compressible region thinner than the thick region. A compressibility of the low compressible region is equal to smaller than 5% upon having a pressure of 0.7 MPa applied to the low compressible region. This heat insulation sheet is superior in electrical insulation properties and thermal insulation properties, and secures a predetermined distance even in a case that the heat insulation sheet receives pressures from the both sides thereof, thus providing equipment with reliability.

A system and method of generating a coiled actuator fiber. The method includes twisting a fiber to generate a twisted fiber, wrapping the twisted fiber around a core to generate a coil in the twisted fiber; and removing at least a portion of the core to generate a coiled actuator fiber. In some aspects that fiber can be a yarn with one or more fibers or a fiber comprising a single elongated element. In some aspects, a portion of the core includes a removable sacrificial portion. The removable sacrificial portion can be dissolvable in a solvent or physically removable. In some aspects, the core further includes a non-dissolvable portion that is not dissolvable and generating a coiled actuator can include removing the sacrificial portion by treating a twisted fiber on the core to remove the sacrificial portion and leaving the non-dissolvable portion.

A system and method of generating a coiled actuator fiber. The method includes twisting a fiber to generate a twisted fiber, wrapping the twisted fiber around a core to generate a coil in the twisted fiber; and removing at least a portion of the core to generate a coiled actuator fiber. In some aspects that fiber can be a yarn with one or more fibers or a fiber comprising a single elongated element. In some aspects, a portion of the core includes a removable sacrificial portion. The removable sacrificial portion can be dissolvable in a solvent or physically removable. In some aspects, the core further includes a non-dissolvable portion that is not dissolvable and generating a coiled actuator can include removing the sacrificial portion by treating a twisted fiber on the core to remove the sacrificial portion and leaving the non-dissolvable portion.