Abstract: A polyphenylene sulfide monofilament has a phenylene sulfide unit as a main structural unit and satisfies (1) to (5): (1) a fineness of 6 to 35 dtex; (2) a breaking strength of 3.4 cN/dtex or more; (3) a breaking elongation of 24% to 45%; (4) a 5% modulus of 1.0 to 1.6 cN/dtex; and (5) a 10% modulus of 1.4 to 2.3 cN/dtex.

Abstract: The present disclosure provides a cleaning string for cleaning a tip end face of a single core optical connector, which contains a quite small residual amount of oil components and has a high wiping property without the attachment of oil components to the tip end face of a single core optical connector. Further, the present disclosure provides a method for producing a cleaning string for cleaning a connector which can suitably remove oil components adhering to a multifilament made of chemical fibers. A cleaning string for cleaning a connector formed by twisting plural multifilament made of chemical fibers, wherein a residual amount of oil components is 3 mg/g or less.

Abstract: Provided is bead fiber with which sufficient air volume can be infused for making a high-performance bicycle tire, which has superior workability that does not require drying of the bead fibers when covering the bead fibers with rubber, and which is effective in preventing rim detachment. A high-performance bicycle tire can be obtained by using this tire bead fiber. The tire bead fiber is characterized by being formed using wholly aromatic polyester fiber with a modulus of elasticity of 800 cN/dt or greater.

Abstract: The invention provides a fiber-reinforced composite material lightweight and excellent in impact resistance, damping nature, and shatterproof nature without impairing stiffness. It is a fiber-reinforced composite material including a fibrous structure (1) composed of only an inorganic fiber and a fibrous structure (2) comprising a wholly aromatic polyester fiber which are stacked together and are impregnated with a resin, wherein an outermost layer of the fiber-reinforced composite material is the fibrous structure (1) composed of only an inorganic fiber and at least one fibrous structure (2) comprising a wholly aromatic polyester fiber is present in a layer other than the center layer.

Abstract: The present disclosure provides a cleaning string for cleaning a tip end face of a single core optical connector, which contains a quite small residual amount of oil components and has a high wiping property without the attachment of oil components to the tip end face of a single core optical connector. Further, the present disclosure provides a method for producing a cleaning string for cleaning a connector which can suitably remove oil components adhering to a multifilament made of chemical fibers. A cleaning string for cleaning a connector formed by twisting plural multifilament made of chemical fibers, wherein a residual amount of oil components is 3 mg/g or less.

Abstract: The invention provides a fiber-reinforced composite material lightweight and excellent in impact resistance, damping nature, and shatterproof nature without impairing stiffness. It is a fiber-reinforced composite material including a fibrous structure (1) composed of only an inorganic fiber and a fibrous structure (2) comprising a wholly aromatic polyester fiber which are stacked together and are impregnated with a resin, wherein an outermost layer of the fiber-reinforced composite material is the fibrous structure (1) composed of only an inorganic fiber and at least one fibrous structure (2) comprising a wholly aromatic polyester fiber is present in a layer other than the center layer.

Abstract: A highly shrinkable fiber composed of nylon-MXD6 polymer and nylon-6 polymer, characterized in that a weight ratio therebetween is in the range of 35:65 to 70:30, and that each thereof exhibits a breaking strength of 4.00 cN/dtex or greater. Preferably, the weight ratio between nylon-MXD6 polymer and nylon-6 polymer of the highly shrinkable fiber is in the range of 45.55 to 55:45. The highly shrinkable fiber exhibits a high shrinkage ratio in boiling water, so that when the highly shrinkable fiber is used in a woven fabric, there can be realized a high density.

Abstract: A polyester fabric having a total cover factor of not lower than 1500 and a mass per unit area of not higher than 45 g/m2, wherein said polyester fabric is composed of polyester multifilament A yarns having a total fineness of not higher than 25 dtex (decitex) and a single yarn fineness of not higher than 2.0 dtex and multifilament B yarns having a total fineness of not lower than 35 dtex, wherein the arrangements of the respective yarns in the warp and weft directions are such that the yarn constitution ratio “B yarn/A yarn” is ¼ to 1/20 (number of yarns-to-number of yarns ratio) and wherein the A yarn-to-B yarn pitches are not longer than 7 mm. The polyester fabric is light in weight, high in density and flexible by using extra-fine polyester multifilaments finer as compared with the conventional polyester multifilaments and, at the same time, has a sufficient level of tear strength.

Abstract: A conjugated conductive fiber including a non-conductive layer and a conductive layer, in which: the non-conductive layer accounts for at least 70% of a surface of the fiber; the non-conductive layer is a polyester obtained by copolymerizing a metal sulfonate group-containing isophthalic acid and a polyalkylene glycol; and the conductive layer is a thermoplastic polymer containing titanium oxide particles each having a conductive coating film. The conjugated conductive fiber provides a polyester-based conjugated yarn high in antistatic performance and easy to handle, which can be dyed under normal pressure with improved color developing property after dying.

Abstract: (A1) Translate this text A composite fiber for stockings which has water-absorbing properties, hygroscopicity, antistatic properties, crimp properties, and cool touch is obtained without sacrificing productivity, transparency, and soft touch. The composite fiber for stockings is an eccentric composite fiber comprising a fiber-forming resin (B) and a polyether block amide copolymer (A). The fiber is characterized in that the polyether block amide copolymer (A), in a cross section of the fiber, is exposed in the surface at an angle of 5-90, and the fiber has 1-10 filaments and a fineness of 1-55 dtex. The fiber especially preferably has a percentage crimp of 10% or higher.

Abstract: A speaker having a diaphragm made of a woven/knitted fabric containing a conductive fiber and a non-conductive fiber, where the fabric has a woven structure or a knitted structure of the non-conductive fiber, and a continuous wiring forming a coil of the conductive fiber.

Abstract: The present invention provides novel conjugate fibers being excellent in productivity and having good water absorption, antistatic property and cool feeling by contact. The conjugate fibers include a fiber-forming resin such as polyamide, polyester and the like in the sheath portion and a polyether block amide copolymer in the core portion, in which the area ratio of the core portion to the sheath portion is 5/95 to 95/5, and the exposure angle of the core portion to the surface is 5° to 90°. Specifically it is preferable that the area ratio of the core portion to the sheath portion is 10/90 to 90/10, the exposure angle of the core portion to the surface is 5° to 80°, and the crimp ratio is 2 to 30%.

Abstract: A screen gauze formed of a core-sheath composite monofilament comprising the core 1 formed by a fiber-forming polymer 4 containing a material 3 having a property of absorbing light at wavelengths of 350 nm to 450 nm and the sheath 2 formed by a fiber-forming polymer 5, the core-sheath composite monofilament having average reflectance of 15% or less to light at wavelengths of 350 nm to 450 nm, and a screen gauze using the same. The monofilament is free from strength reduction, scum generation and abrasion of related parts such as reed, and makes no difficulty in ink-release, and requires no dyeing process and thus no additional cost therefor.

Abstract: An electrically conductive material for an electrically conductive gasket is to be provided, the electrically conductive material permitting easy manufacture of an electrically conductive gasket in an arbitrary shape, having a cushioning property and making it possible to greatly diminish cutting wastes in punching work and also greatly diminishing the formation of fray and fluff. According to the present invention there are provided an electrically conductive material comprising a metalized non-woven fabric of a self-bonded continuous organic fiber, as well as an electrically conductive material comprising a metalized, integrally laminated composite sheet of both a non-woven fabric of a self-bonded continuous organic fiber and an organic fiber structure sheet.

Abstract: A method (200) for detecting a periodic signal (141) in a noisy signal (101) is provided. The method can include applying (210) correntropy to the noisy signal to generate a non-linear mapping, and applying (220) a sub-space projection to the non-linear mapping to produce principal components. A correntropy kernel can be applied to the noisy signal to generate a Gram matrix that is used in a Temporal Principal Component Analysis (TPCA). The correntropy kernel projects nonlinearly the input data to a reproducing kernel Hilbert Space (RKHS) preserving the input time structure and attenuating impulsive noise. The correntropy kernel is data dependent, and the RKHS correlation matrix has the same dimension as the input data correlation matrix. A principal component having a majority of signal energy can be chosen (230) to detect the periodic signal.

Abstract: A highly shrinkable fiber composed of nylon-MXD6 polymer and nylon-6 polymer, characterized in that a weight ratio therebetween is in the range of 35:65 to 70:30, and that each thereof exhibits a breaking strength of 4.00 cN/dtex or greater. Preferably, the weight ratio between nylon-MXD6 polymer and nylon-6 polymer of the highly shrinkable fiber is in the range of 45.55 to 55:45. The highly shrinkable fiber exhibits a high shrinkage ratio in boiling water, so that when the highly shrinkable fiber is used in a woven fabric, there can be realized a high density.

Abstract: A splittable conjugate fiber that even in the polishing of precision equipments, such as a hard disc, is free from injuring of polishing object parts and allows precision polishing. The splittable conjugate fiber is one composed of, containing substantially none of titanium dioxide, a polyester component and a polyamide component, characterized in that the cyclic trimer content of the polyester component is less than 1.0%. Preferably, this product is produced under conditions such that the difference between polyester-containing cyclic trimer after melt extrusion and cyclic trimer of polyester pellet as a raw material is less than 0.3%.

Abstract: A splittable conjugate fiber that provides a fiber structure with enhanced compactness, bulkiness and color formation has one member consisting of a polyamide resin composition containing an aromatic polyamide and an aliphatic polyamide and has another member consisting of a fiber forming polymer with no affinity to the polyamide resin composition. Preferably, the aromatic polyamide is a polyamide whose major structural units are composed of an aliphatic dicarboxylic acid and an aromatic diamine. In further preferred modes, the polyamide resin composition consists of nylon-MXD6 and nylon-6, the weight ratio therebetween ranging from 35:65 to 70:30, and the fiber forming polymer is a polyester or polyolefin.

Abstract: A normal-pressure cation-dyeable polyester is provided which contains an isophthalic acid component having a metal sulfonate group in a predetermined proportion based on the total of acid components present in the polyester, and contains a polyalkylene glycol having an average molecular weight of 150 to 600 in a predetermined proportion based on the polyester, wherein the proportion of diethylene glycol based on the total of glycol components and a terminal carboxyl group concentration are each set within a predetermined range. The polyester is stable in quality and excellent in dark- and pale-color light fastness when used for textile products.

Abstract: A medical sheet base includes a polyurethane nonwoven fabric and a polyurethane film combined with each other, and is improved in stretchability, air permeability, moisture permeability, water resistance and flexibility over prior-art medical sheet bases as required of the medical sheet base. The polyurethane nonwoven fabric includes continuous filaments each having an average filament diameter of not greater than 50 ?m, the filaments being deposited in a substantially unbound state and partly bonded to each other. The polyurethane film has minute pores present in opposite surfaces thereof and each having a diameter of not greater than 10 ?m, and minute pores communicating with each other along the thickness thereof.