Abstract: A task is to provide a woven fabric for airbags for protecting drivers and passengers of an automobile and the like, wherein the woven fabric for airbags has excellent flexibility, tear strength, and elongation at break, and means for solution is a woven fabric for airbags comprising a polyester multifilament, wherein the polyester multifilament has a total fineness in the range of 140 to 580 dtex, and has the number of filaments in the range of 96 to 192, wherein the difference between the total fineness of warp yarns constituting the woven fabric and the total fineness of weft yarns constituting the woven fabric is 5 dtex or less, and the number of warp yarns per unit length is smaller than the number of weft yarns per unit length.

Abstract: Provided is a piezoelectric structure comprising a braid composed of a conductive fiber and piezoelectric fibers, the braid being a covered fiber having the conductive fiber as the core and the piezoelectric fibers covering the periphery of the conductive fiber, wherein the covered fiber has at least one bent section, and when the piezoelectric structure is placed on a horizontal surface, the height from the horizontal surface to the uppermost section of the piezoelectric structure is greater than the diameter of the covered fiber.

Abstract: The problem addressed by the present invention is to provide yarn, which includes an ultrafine filament, and that has superior handling properties, elongation and contraction properties, and with which a fabric and a fiber product of high quality can be obtained, a fabric using this yarn, and a fiber product using this yarn or fabric. The solution is imparting a binder to yarn that includes a filament A-1 with a single fiber diameter of 10 to 3000 nm and a fiber A-2 with a single fiber diameter greater than the filament A-1, and obtaining a fabric or fiber product using the yarn as necessary.

Abstract: An object is to provide a cloth having excellent air permeability changing function due to wetness and dimensional stability and a fibrous product, and means for achieving the object is to obtain a cloth using a conjugate fiber having two components conjugated side by side and a crimped fiber having a torque of 30 T/m or less.

Abstract: The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 ?m or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 ?m or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m2, and also a liquid filter are obtained.

Abstract: A task is to provide a multilayer-structure cloth having excellent water vapor permeability, lightweight properties, stretchability, and thinness, and a method for producing the same and a fiber product. The task is attained by laminating a resin film on single circular knitted fabric which comprises a non-crimped synthetic fiber multifilament having a total fineness of 44 dtex or less, and which has a knitting density that is 45 to 130 course/2.54 cm and 55 to 120 wales/2.54 cm to obtain a multilayer-structure cloth.

Abstract: The invention addresses the problem of providing a filter fabric for a bag filter, which has excellent collection performance and low pressure drop and is resistant to a decrease in dust collection performance due to abrasion or cracking, and also a method for producing the same. Means for resolution is a filter fabric for a bag filter in which a nonwoven fabric A including short fibers a having a single-fiber fineness of 0.3 to 0.9 dtex, a base fabric, and a nonwoven fabric B including short fibers b having a single-fiber fineness of 0.3 to 4.0 dtex are laminated in this order.

Abstract: An antibacterial electric charge generation yarn meets requirements (a) to (e) mentioned below simultaneously and suppresses proliferation of bacteria by electric charge generated upon deformation of the yarn: (a) a main component of the yarn is polylactic acid.; (b) the yarn is twisted; (c) the yarn has a double torque of 50 T/50 cm or less; (d) the yarn has a single fiber fineness of 0.05 to 5 dtex; and (e) the number of filaments in the yarn is 10 to 400.

Abstract: Provided is a nonwoven fabric structure containing an odd-shaped fiber. The odd-shaped fiber has bubbles inside and has a cross-sectional shape that is an irregular, non-circular cross-section. Further, it is preferable that the cross-sectional shape of the odd-shaped fiber changes in the fiber length direction, the odd-shaped fiber has a crystallinity of 40% or less, and the odd-shaped fiber is made of at least two kinds of thermoplastic resins. It is also preferable that that the nonwoven fabric structure contains a heat fusible fiber, the odd-shaped fiber is present in the form of a net-like fiber sheet, and the odd-shaped fiber is in the form of short fibers. In addition, a method for producing such a nonwoven fabric structure is a method in which a thermoplastic resin containing a foaming agent is extruded through a slit die to give an odd-shaped fiber having bubbles inside, followed by three-dimensional shaping.

Abstract: A task is to provide a multilayer structured cloth and a fiber product which are excellent in lightweight properties for bulkiness, impressive soft texture, high cushioning properties, low draping properties, and sweat absorbing and quick drying properties, and the task is achieved by a multilayer structured cloth including front and back ground structure portions, a connecting yarn which connects the front and back ground structure portions to each other, and an insert yarn, wherein at least one of the front and back ground structure portions contains a crimped fiber or a spun yarn.

Abstract: A polytrimethylene terephthalate composition including a polyester having a trimethylene terephthalate unit as a main repeating unit, which satisfies all the following requirements: (a) the intrinsic viscosity is 0.50 to 1.60 dL/g; (b) titanium dioxide whose weight distribution of particles having a particle size of more than 1.0 ?m is 5.0% by weight or less is contained in an amount of 0.05 to 3.0% by weight; (c) the crystallization exothermic peak top temperature is 165° C. or more; and (d) the half-width of the crystallization exothermic peak is 20° C. or less. In addition, the invention further encompasses a method for producing a polytrimethylene terephthalate composition using titanium dioxide that has been subjected to a wet-grinding treatment, and also a fiber obtained from the composition.

Abstract: Provided are a filter medium for a filter, which makes it possible to obtain a filter high in collection efficiency, low in pressure loss and long in filter lifetime, a method for producing the same, and a filter using the filter medium for a filter. A filter medium for a filter is used as a constituent member of a filter and composed of a wet type nonwoven fabric, wherein the filter medium for a filter has a multilayer structure of two or more layers, and there is no interface between the above-mentioned two layers.

Abstract: A fiber structure includes crimped staple fibers and heat-bonding conjugate staple fibers mixed in a specific weight ratio, the heat-bonding conjugate staple fibers having, as a heat-bonding component disposed on the surface thereof, a thermoplastic resin having a melting point lower by 40° C. or more than that of a thermoplastic resin constituting the crimped staple fibers, the fiber structure having scattered fixing points in which the heat-bonding conjugate staple fibers are heat-fused and intersect together and/or scattered fixing points in which the heat-bonding conjugate staple fibers and the crimped staple fibers are heat-fused and intersect together, the fiber structure having a specified thickness and density and having a laminated structure of three or more layers, wherein the hardness ratio between an intermediate layer portion and a surface layer portion defined when the fiber structure is equally divided into three portions is 0.60 or more.

Abstract: A fiber powder having a 50% particle diameter (d50) of 6 to 60 ?m, characterized in that the fiber powder has a maximum particle diameter (d100) of 1,000 ?m or less. It is preferred that a value ((d10·d90)/d100) obtained by dividing by the maximum particle diameter (d100) a value which is obtained by multiplying a 10% particle diameter (d10) by a 90% particle diameter (d90) is 0.3 to 5.0, that the fiber powder has an extractable component content of 0.2 to 3.0% by weight based on the fiber weight, and that the fiber powder has a water content of 0.2 to 50% by weight. Further, it is preferred that the fiber powder is an organic material, or comprises a thermoplastic resin, and that the thermoplastic resin is a polyester resin or a polyamide resin.

Abstract: The present invention addresses the problem of providing: a polishing pad that is long-lasting, has a high polish rate, and is capable of producing a high degree of flatness on polished articles; and a method for manufacturing the polishing pad. The solution provided is to eliminate a sea component from a non-woven fabric that includes a binder fabric and a sea-island type composite fiber composed of the sea component and an island component, the island component having a diameter of 10-2500 nm, and to add a polymer elastic body to the non-woven fabric.

Abstract: The prevent invention addresses the problem of providing a multilayer filter medium for a filter having low pressure loss and high collection efficiency, a method for producing the same, and an air filter not only having low pressure loss and high collection efficiency but also being excellent in pleatability and wind-pressure deformation resistance. The multilayer filter medium for a filter as a means for resolution is obtained by laminating a wet-laid nonwoven fabric layer (2) on a wet-laid nonwoven fabric layer (1). The wet-laid nonwoven fabric layer (1) includes a nanofiber A having a single-fiber diameter within a range of 200 to 800 nm and a fiber length within a range of 0.4 to 0.7 mm, a fiber B having a greater single-fiber diameter than the nanofiber A, and a binder fiber C. The wet-laid nonwoven fabric layer (2) includes a nanofiber A having a single-fiber diameter within a range of 200 to 800 nm and a fiber length within a range of 0.4 to 0.

Abstract: The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 ?m or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 ?m or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m2, and also a liquid filter are obtained.

Abstract: The problem addressed by the present invention is to provide yarn, which includes an ultrafine filament, and that has superior handling properties, elongation and contraction properties, and with which a fabric and a fiber product of high quality can be obtained, a fabric using this yarn, and a fiber product using this yarn or fabric. The solution is imparting a binder to yarn that includes a filament A-1 with a single fiber diameter of 10 to 3000 nm and a fiber A-2 with a single fiber diameter greater than the filament A-1, and obtaining a fabric or fiber product using the yarn as necessary.

Abstract: Ticking having excellent flexibility is described. A woven fabric is obtained by using a multifilament having a monofilament fineness of not more than 0.5 dtex, the number of filaments of 100 or more and a total fineness of not more than 50 dtex and used as ticking. The woven fabric can be made of a polyester.

Abstract: The invention addresses the problem of providing a knitted fabric and a textile product which have excellent water absorbency, quick-drying properties, and anti-see-through properties. As a means for resolution, a knitted fabric is obtained using a crimped fiber having a torque of 30 T/m or less. The density of the knitted fabric is not less than 60 courses/2.54 cm and not less than 45 wales/2.54 cm, and the thickness of the knitted fabric is 0.45 mm or less.