The disclosure discloses an aerogel-modified polypropylene and a preparation method thereof, and ultralight thermal-insulating melt-blown non-woven fabric containing the aerogel-modified polypropylene and a preparation method thereof. The preparation method for the aerogel-modified polypropylene includes the following steps: before or during a polymerization reaction, adding aerogel to blend with reaction materials with low viscosities. thereby implementing uniform dispersion of the aerogel to prepare the aerogel-modified polypropylene; herein the reaction materials include a propylene monomer, a catalyst, and an additive, and the aerogel has a granularity falling within a range from 20 nm to 100 ?m, a porosity falling within a range from 40% to 99.9%, a stacking density falling within a range from to 500 g/L, and, a volume fraction being 20-60% of a volume of the ultralight thermal-insulating melt-blown non-woven fabric prepared from the aerogel-modified polypropylene.

Provided is a fiber having an elongated, unsupported, three-dimensional fiber body with a fiber body length and at least one fiber material disposed along the fiber body length. The at least one fiber material has a viscosity lower than about 10.sup.8 Poise at a common thermal fiber draw temperature. At least one topological pattern is disposed on at least one surface of the fiber body and extends longitudinally along at least a portion of the fiber body length. To form the fiber, there is assembled a fiber preform including at least one preform material. A surface of at least one preform material is patterned and arranged as a fiber preform surface, providing a topological pattern on a fiber preform surface. The fiber preform is thermally drawn into an elongated fiber at a fiber draw temperature at which all preform materials have a viscosity lower than about 10.sup.8 Poise.

Provided is a fiber having an elongated, unsupported, three-dimensional fiber body with a fiber body length and at least one fiber material disposed along the fiber body length. The at least one fiber material has a viscosity lower than about 10.sup.8 Poise at a common thermal fiber draw temperature. At least one topological pattern is disposed on at least one surface of the fiber body and extends longitudinally along at least a portion of the fiber body length. To form the fiber, there is assembled a fiber preform including at least one preform material. A surface of at least one preform material is patterned and arranged as a fiber preform surface, providing a topological pattern on a fiber preform surface. The fiber preform is thermally drawn into an elongated fiber at a fiber draw temperature at which all preform materials have a viscosity lower than about 10.sup.8 Poise.

A preparation method of a deodorizing nylon 6 fiber including providing a fabricating step of deodorizing nylon 6 chips and performing a spinning step. A porous powder of citrate is mixed with a caprolactam powder so as to obtain a raw material of a deodorizing chip. The raw material of the deodorizing chip is ground so as to obtain a size mixture of a deodorizing nylon 6. The size mixture of the deodorizing nylon 6 is polymerized so as to obtain the deodorizing nylon 6 chips. In the spinning step, a spinning material including the deodorizing nylon 6 chips is provided. The spinning material is spun so as to obtain a deodorizing nylon 6 fiber.

The present disclosure provides a polyamide resin and a preparation method therefor, a composition, and a fiber product. The polyamide comprises diamine structural units and diacid structural units, wherein 90 mol % or more of the diacid structural units are derived from adipic acid, 90 mol % or more of the diamine structural units are derived from 1,5-pentanediamine, and the polyamide resin contains a water-extractable substance in a content of 0.7 wt. % or less. The water-extractable substance has a number average molecular weight of 2000 or less. The preparation method of the polyamide resin of the present disclosure is simple without using large-scale equipment, and the process parameters thereof are easy to control, thereby facilitating mass production thereof. The polyamide resin of the present disclosure has a long spinneret wipe cycle time and less broken filament times, and the obtained fiber has less broken filaments, low yarn unevenness, less dyed dark grain, a good dyeing effect, and an excellent elongation at break, breaking strength and a lower boiling water shrinkage, a high spinning yield and a high dyeing yield.

The present invention provides a fabricating method for meltblown nonwoven from natural cellulose fiber blended with nano silver, which comprises following steps. Firstly, prepare nano silver colloidal sol by reduction titration for mixture of polyvinyl alcohol (PVA), silver nitrate (AgNO.sub.3) and sodium borohydride (NaBH.sub.4). Secondly, prepare mixing cellulose serum by blending agitation for mixture of wood pulp, N-methylmorpholine N-oxide (NMMO) and stabilizer. Thirdly, prepare blending mucilage from mixing cellulose serum via blending process. Fourthly, produce spinning dope by blending and dehydrating the nano silver colloidal sol and mixing cellulose serum. Fifthly, produce molten filament tow by meltblown spinning method in association with coagulation, regeneration in coagulation bath, and water rinse. Finally, by post treatments of hydro-entangled needle punching, drying, winding-up processes in proper order, obtain final product of meltblown nonwoven from natural cellulose fiber blended with nano silver, which is biodegradable with features of antibacterial and antistatic capabilities.

The process of the present invention may be used to produce polyester filaments that exhibit superior moisture and perspiration absorption. In various embodiments, this process involves: (1) pre-crystallizing polyester chips in a crystallizer; (2) drying and ventilating the polyester chips after crystallization to produce dried polyester chips; (3) melting the dried polyester chips in a screw extruder; (4) filter the melted polyester chips to form a filtered melt; (5) introducing the filtered melt into a spinning box via a metering pump, wherein the filtered melt enters the spinning assembly; (6) extruding the filaments from the spinning assembly; (7) cooling the extruded filaments from the spinning assembly to room temperature in order to solidify the filaments and form a fiber tow; and (8) winding the fiber tow via a winding machine to form a wound tow. The process described herein can produce polyester filaments that comprise a longitudinal groove along the surface of fiber, which can provide a capillary effect that enhances the moisture wicking capabilities of the filaments. Consequently, the polyester filaments of the present invention can be used to produce woven articles, such as reinforcement fabrics, that comprise fiber micro-grooves along the surface of the article, thereby enhancing the article's sweat wicking capabilities, water diffusion capabilities, and water transfer capabilities. Furthermore, the use of these grooved polyester filaments of the present invention can facilitate the migration of water and moisture to the surface of the fabric, thereby allowing the moisture to spread out on the surface and enabling it to quickly evaporate. Consequently, this can keep the skin of the wearer dry.

High-melting antimicrobial polymer fibers and antimicrobial fabrics comprising such fibers are prepared by preparing a masterbatch of polymer pellets (e.g., PET), silver and copper salts, and a compounding agent which provides free flowing polymer pellets which can be prepared in advance, with a long shelf life. Polymer masterbatches prepared by the methods of the invention can produce limited color or off-white antimicrobial fibers and fabrics using conventional melt spinning manufacturing methods. Fabrics incorporating fibers of the present invention are potent inhibitors of Athlete's foot fungi, gram negative and gram positive bacteria, and drug resistant pathogens.

A recycling method of waste fishnet is provided. The waste fishnet is processed with steps of cutting, removing impurities, cleaning, and drying to form fishnet chips. The recycling method of waste fishnet includes the following steps. The fishnet chips are mixed with nylon-66, wherein the fishnet chips are of 70% by weight, and nylon-66 is of 30% by weight. The mixture is heated and molten. The molten mixture is then processed with the step of granulation. The grains are then processed with the step of spinning Thereby, the waste fishnet can be recycled and transferred into useful plastic materials.

A recycling method of waste fishnet is provided. The waste fishnet is processed with steps of cutting, removing impurities, cleaning, and drying to form fishnet chips. The recycling method of waste fishnet includes the following steps. The fishnet chips are mixed with nylon-66, wherein the fishnet chips are of 70% by weight, and nylon-66 is of 30% by weight. The mixture is heated and molten. The molten mixture is then processed with the step of granulation. The grains are then processed with the step of spinning Thereby, the waste fishnet can be recycled and transferred into useful plastic materials.