Disclosed are a shear thickening fluid (STF) comprising solid particles and a dispersion medium, wherein the solid particles comprise silica particles as a first component and carbon nanoparticles as a second component and a method for preparing a shear thickening fluid, comprising mixing silica particles, a dispersion medium for silica particles, and a carbon nanoparticle dispersion.

Disclosed are a shear thickening fluid (STF) comprising solid particles and a dispersion medium, wherein the solid particles comprise silica particles as a first component and carbon nanoparticles as a second component and a method for preparing a shear thickening fluid, comprising mixing silica particles, a dispersion medium for silica particles, and a carbon nanoparticle dispersion.

A carbon fiber bundle for resin reinforcement, wherein there are adhered by 0.1-5.0 mass % to a carbon fiber bundle in which multiple lengths of filament are bundled, a mixture created by mixing an organic polymer (A) having a mass-average molecular weight of 10000 or more and an organic compound (B) the thermal reduction rate specified in claim 1 of which is 5 mass % or more or an organic compound (B) the thermal reduction rate specified in claim 2 of which is 0.8 mass % or more, the amount of the organic polymer (A) adhered being 0.1 mass % or more.

A carbon fiber bundle for resin reinforcement, wherein there are adhered by 0.1-5.0 mass % to a carbon fiber bundle in which multiple lengths of filament are bundled, a mixture created by mixing an organic polymer (A) having a mass-average molecular weight of 10000 or more and an organic compound (B) the thermal reduction rate specified in claim 1 of which is 5 mass % or more or an organic compound (B) the thermal reduction rate specified in claim 2 of which is 0.8 mass % or more, the amount of the organic polymer (A) adhered being 0.1 mass % or more.

A synthetic fiber finish includes a lubricant (A), a polyhydric alcohol fatty acid ester having at least one hydroxyl group per molecule (B), and an organic sulfonic acid compound (C). The lubricant (A) includes a sulfur-containing ester (A3). The amount of the lubricant (A) ranges from 50 to 90 wt %, the amount of the ester (B) ranges from 1 to 20 wt % and the amount of the sulfur-containing ester (A3) ranges from 5 to 20 wt %, to a nonvolatile component of the finish.

Disclosed is an inorganic fiber sizing agent that contains an epoxy compound, an aliphatic sulfonic acid salt, and a nonionic surfactant.

The present invention relates to an acrylic fiber for artificial hair containing an acrylic copolymer. The fiber cross-section of the acrylic fiber has one or more shapes selected from the group consisting of a C-shape, a figure-6-shape, and a broad bean-shape with a hollow portion. Two ends of the C-shape, the figure-6-shape, or the broad bean-shape are apart from each other or are in contact with each other. A circumcircle of the fiber cross section has a diameter of 70 m or more and 100 m or less, an inscribed circle of the fiber cross section has a diameter of 15 m or more and 50 m or less, the thickness of the fiber cross section is 13 m or more and 40 m or less, and the canal width between the ends of the fiber cross section is 0 m or more and 15 m or less.

A surfactant treatment is provided that can result in a sterilization wrap that can have a bacterial filtration efficiency of at least 94 percent as determined according to ASTM F2101. The surfactant treatment includes a surfactant consisting essentially of carbon, hydrogen, and oxygen atoms. Wrapping packs in a wrap treated with said surfactant treatment in an amount ranging from greater than 0 to 2 weight percent based on the dry weight of the wrap results in the production of fewer wet packs after steam sterilization compared to when packs are wrapped with an identical wrap without said surfactant treatment. A sterilization wrap comprising a nonwoven fabric and a dried residue surfactant treatment that is essentially free of silicon, potassium, phosphorus, and sulfur is also provided, where wrapping packs to be sterilized in the surfactant treated wrap reduces the occurrence of wet packs after steam sterilization compared using an untreated wrap.

A surfactant treatment is provided that can result in a sterilization wrap that can have a bacterial filtration efficiency of at least 94 percent as determined according to ASTM F2101. The surfactant treatment includes a surfactant consisting essentially of carbon, hydrogen, and oxygen atoms. Wrapping packs in a wrap treated with said surfactant treatment in an amount ranging from greater than 0 to 2 weight percent based on the dry weight of the wrap results in the production of fewer wet packs after steam sterilization compared to when packs are wrapped with an identical wrap without said surfactant treatment. A sterilization wrap comprising a nonwoven fabric and a dried residue surfactant treatment that is essentially free of silicon, potassium, phosphorus, and sulfur is also provided, where wrapping packs to be sterilized in the surfactant treated wrap reduces the occurrence of wet packs after steam sterilization compared using an untreated wrap.

A fiber for hair, having a base fiber, and a cationic surfactant and a nonionic surfactant which are present in at least a part of a surface of the base fiber, in which the cationic surfactant has a carbon chain having 18 to 22 carbon atoms, the nonionic surfactant has a carbon chain having 10 to 20 carbon atoms, an HLB value of the nonionic surfactant is 14.0 to 19.0, a content of the cationic surfactant is 3 to 20% by mass based on the total amount of the nonionic surfactant, and a total amount of the cationic surfactant and the nonionic surfactant is 0.002 to 4% by mass based on the total amount of the fiber for hair.