A continuous oil-water separation system includes a storage tank having an inlet and an outlet and storing an oil-water mixture, a filter housing including a storage space having a predetermined height and having an inlet connected to the outflow portion of the storage tank to allow the oil-water mixture to flow in therethrough, a water drain hole allowing water separated from the oil-water mixture to be discharged therethrough, and an outlet allowing a residual oil-water mixture to flow out therethrough, a super-hydrophilic oil-water separation filter positioned in the storage space of the filter housing to absorb water from the oil-water mixture and connected to the water drain hole to allow the absorbed water to be discharged therethrough, a pressure control valve installed on an outlet pipe extending from the outlet, and a hydrophobic membrane connected to a rear end of the pressure control valve on the outlet pipe.

A method for ultra-hydrophilic surface treatment of a polymer fiber substrate according to the present invention comprises the steps of: forming a thermosetting coating layer on the surface of a polymer substrate; forming a carboxylate group (—COO—) on the surface of the thermosetting coating layer; forming an amide bond (—CONH—) between the thermosetting coating layer and hydrogel monomers; and forming a hydrophilic polymer layer by crosslinking the hydrogel monomers.

Fibers for artificial hair containing resin particles adhering to the fiber surface are provided. The amount of the resin particles adhering to the fiber surface is 0.3% omf or more and 1.1% omf or less. The average particle diameter of the resin particles is 1 μm or more and 20 μm or less. A method for producing the fibers for artificial hair, includes applying a resin emulsion having an average particle diameter of 350 nm or more to the fiber surface, in an amount of 0.3% omf or more and 1.1% omf or less on a solid basis. The fibers for artificial hair having an excellent combing property and a gloss close to human hair, hair ornament products including the same, and a method for producing the same are provided.

A water filtration membrane is provided, capable of removing heavy metal ions, filtering out particulates, filtering out bacteria, as well as removing herbicides and volatile organic compounds (VOCs) from water. The membrane is composed of a mat of randomly oriented nanoparticle-coated nanofibers. The nanofibers are covalently bonded to a plurality of substantially uniformly-distributed ceramic nanoparticles embedded in or adhered on the surface of the polymer nanofibers through reactive functional groups. The ceramic nanoparticles have a pattern of deep grooves formed on the nanoparticle surfaces. The bonding of the nanoparticles to the nanofibers is sufficient to retain the nanoparticles on the nanofiber surfaces when water flows through the water filtration membrane. The diameter of the nanofibers is 50-200 nm. The size of the nanoparticles is <40 nm, with a zeta potential of −40 to −45 mV in a dispersion medium. The nanoparticle deep grooves have an average size of approximately 1.2 nm or less.

A hydrophilic fluororesin tube includes a tube wall that contains a fluororesin fiber deposited to form a nonwoven fabric, and satisfies the following requirement (1): requirement (1); the tube wall of the hydrophilic fluororesin tube demonstrating an average transmittance, when immersed in water at 25° C. for 1 minute, of 40% or larger at 400 to 700 nm wavelength.

A press-bonded body or a method for producing the same is provided, such that the press-bonded body is a press-bonded body of at least one of a base material selected from the group consisting of non-woven fabric, stretched porous film, and fiber. The base material contains a fluorine resin (except for polytetrafluoroethylene) having a —CF2- group content of 85% by mass or greater. Polytetrafluoroethylene fibrils bond fibers constitute the base material, and in relation to the entirety of the fibrils, the proportion of the number of fibrils that are oriented at an angle of 45° to 90° relative to the direction of the fibers constituting the base material is 50% or greater.

A fiber treatment agent can provide artificial hair fiber with smooth and dry texture. A fiber treatment agent includes water; silicone oil; and ionic liquid. Content of the sum of the silicone oil and the ionic liquid with respect to the water is 2 parts by weight or more and less than 10 parts by weight. Content of the silicone oil with respect to the weight of the water is more than 0.5 parts by weight and 9.5 parts by weight or less. Content of the ionic liquid with respect to the weight of the water is 0.2 parts by weight or more and 5.0 parts by weight or less.

The invention relates to a modified textile comprising a) a textile substrate; and, b) a lactam coating; and to the use of a lactam to impart anti-biofilm properties to a textile; and to the use of a lactam to inhibit biofilm growth on a textile substrate; wherein the lactam is selected from: (I) 4-(4-chlorophenyl)-5-methylene-pyrrol-2-one; and (II) 5-methylene-4-(p-tolyl)pyrrol-2-one; (III) 4-(4-bromophenyl)-5-methylene-pyrrol-2-one; (IV) 4-(3-chlorophenyl)-5-methylene-pyrrol-2-one; (V) 4-(2-fluorophenyl)-5-methylene-pyrrol-2-one; and (VI).

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A conductive far-infrared heat-generating fiber and a preparation method therefor. In the process of preparing the conductive far-infrared heat-generating fiber, the preparation method specifically comprises: A) pretreating a matrix fiber, and then drying same; B) impregnating, in a coating liquid of a conductive material, the matrix fiber obtained in step A, and then drying same; and performing step B) at least once, and obtaining the conductive far-infrared heat-generating fiber. The preparation method for the conductive far-infrared heat-generating fiber is simple and can realize good control of resistivity and heat generation.

Process for the plasma surface treatment under vacuum of a fabric, nonwoven fabric or paper material for obtaining materials to be used for the filtration and separation of two immiscible liquids.