The present invention is directed to eyectrochromic, supercapacitor yarns and the related fabrics. An electrochromic yarn formed by two interwind threads has been invented. The yarn is electrically isolated by a transparent, uncolored polymer. Each thread is the superposition of three concentric layers. The most internal one, the core, has the function of support and/or conductive layer, the second one is the eiectrochromic layer containing conductive nanoparticies, the third layer is a polymer dielectric blend. The yarns described above allows to generate electrochromic fabrics in which the colour can be varied by the application of small electric voltages fed by a battery with variable power supply controlled by a microprocessor connected to a smartphone via Bluetooth technology. A specific application on the smartphone allows to change the voltage supply to the fabrics, in order to get the desired chromatic change.

Fabrics that are exhibit water repellency, abrasion resistance, and optionally flame resistance are described herein. The fabrics include a plurality of fibers (such as flame resistant fibers) and a finish that imparts water repellency and abrasion resistance to the fibers. The fabrics are free or substantially free from alkylfluoropolymers. Also described herein are garments including the fabrics.

A fiber-reinforced thermoplastic resin filament is obtained by impregnating a continuous reinforcing fiber with a thermoplastic resin, and satisfies all of conditions (a) to (c). (a) The volume ratio of a reinforcing fiber in a fiber-reinforced thermoplastic resin filament is 30 to 80%; and the volume ratio of a thermoplastic resin in a fiber-reinforced thermoplastic resin filament is 70 to 20%. (b) The thickness of a fiber-reinforced thermoplastic resin filament is 0.01 to 3 mm. (c) The length of a filament contained in a fiber-reinforced thermoplastic resin filament is 1 m or more.

Fabrics that are exhibit water repellency, abrasion resistance, and optionally flame resistance are described herein. The fabrics include a plurality of fibers (such as flame resistant fibers) and a finish that imparts water repellency and abrasion resistance to the fibers. The fabrics are free or substantially free from alkylfluoropolymers. Also described herein are garments including the fabrics.

Fabrics that are exhibit water repellency, abrasion resistance, and optionally flame resistance are described herein. The fabrics include a plurality of fibers (such as flame resistant fibers) and a finish that imparts water repellency and abrasion resistance to the fibers. The fabrics are free or substantially free from alkylfluoropolymers. Also described herein are garments including the fabrics.

A method of treating a fiber includes admixing a fiber comprising a polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety and having a degree of hydrolysis less than 100% with a hydrolysis agent solution to form a mixture so as to increase the degree of hydrolysis of at least a portion of the fiber.

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 coated filament for use in additive manufacturing includes a base polymer layer formed of a base polymer material and a coating polymer layer formed of a coating polymer material. At least the coating polymer material is susceptible to dielectric heating in response to electromagnetic radiation, thereby promoting fusion between adjacent beads of coated filament that are deposited during the additive manufacturing process. Specifically, when electromagnetic radiation is applied to an interface area between two adjacent beads of the coated filament, the polymer coating layer melts to diffuse across the interface area, thereby preventing formation of voids. The base polymer material and the coating polymer material of the coated filament also may have similar melting points and compatible solubility parameters to further promote fusion between beads.

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.

The invention relates to a water-repellent and lipophilic composite needle-punched nonwoven fabric and a preparation method thereof. The method comprises the following steps: blending a PET fiber and a polyolefin-based fiber in a mass ratio of 3:1-1:3, and performing needle punching to obtain a composite needle-punched nonwoven fabric; carrying out hot-drying treatment on the composite needle-punched nonwoven fabric at 110-160° C. for 40-90 min; and carrying out water-repellent finishing on the hot-dried fabric using 50-70 mL/L of an aqueous solution of a modified resin-based fluorine-free waterproofing agent, and drying to obtain the water-repellent and lipophilic composite needle-punched nonwoven fabric, wherein the water-repellent finishing is dip rolling, the air pressure is 1.8 kPa and the liquid carrying rate is 160-230%. The preparation method of the invention is simple, and the prepared composite needle-punched nonwoven fabric has significantly improved water repellency, lipophilicity and tensile strength compared with the fabric before treatment.