12 results about "Filament yarn" patented technology

This invention relates to the field of hollow polyester fiber technology, and discloses an octagonal star-shaped hollow polyester fiber and its preparation method, as well as a method for preparing filament yarn. The octagonal star-shaped hollow polyester fiber comprises a monofilament with a square ring cross-section and eight wing-like structures on its outer circumferential surface. These eight wing-like structures are evenly distributed on the four outer walls of the square ring, with unequal lengths on adjacent circumferentially adjacent outer walls. This invention uses wing-like structures of varying lengths on the outer circumference of the square ring, creating grooves of different depths on the fiber surface, forming capillary channels. Especially in the multifilament state, the special cross-section increases the gaps between monofilaments, improving bulkiness and air permeability. Furthermore, the large square space in the hollow portion facilitates mold design and processing, resulting in stable product performance, particularly maintaining the hollowness, thus providing better heat-shielding and insulation effects.

The utility model relates to the technical field of melt extruder, especially a kind of melt extruder for polyamide filament spinning, including the barrel of melt extruder, the die head of melt extruder and multiple filter screens, filter screen installation pipe is equipped between the barrel of melt extruder and the die head of melt extruder, multiple the filter screen is installed in filter screen installation pipe in turn, both ends of filter screen installation pipe are movably installed with outer thread ring piece, the surface of the barrel of melt extruder and the die head of melt extruder is fixedly provided with inner thread sleeve, outer thread ring piece is screw-mounted in the inside of inner thread sleeve.This scheme needs to clean or replace filter screen, only need to rotate outer thread ring piece, after outer thread ring piece is spirally removed from inner thread sleeve, filter screen installation pipe can be separated from between the barrel of melt extruder and the die head of melt extruder, facilitate the operation of staff, improve work efficiency.

The present disclosure relates to a biodegradable geotextile structure (1) for soil rehabilitation comprising a woven fabric structure of filament yarns of a natural fiber, at least a plant nutrient (6) and plant seeds (5), wherein the nutrient and the plant seeds are trapped in the apertures of the woven mesh of the woven fabric structure. Furthermore, the present disclosure relates to a method for producing said biodegradable geotextile structure.

An aircraft radial tire having a radial carcass reinforcement with a plurality of carcass layers made up of textile reinforcing elements oriented substantially radially, which is to say forming an angle of between 75° and 105° with the circumferential direction, the radial reinforcing elements of the carcass layers are composite cords having at least one aromatic polyamide filament yarn and of which the force at break is FR, measured in accordance with the standard D885 / D885M-10A (2014), and these elements exhibit a deformation at least equal to 4.6% for an applied force equal to FR / 4. The tenacity of these reinforcing elements is at least equal to 80 daN / mm2, and the linear density of the one or more aromatic polyamide filament yarns does not exceed 210 tex. The thicknesses, adjusted for the shaping radii of the carcass layers, remain constant over the entire tire.

A tufted carpet system for a moulded automotive trim part or flooring comprising a nonwoven primary backing, a plurality of tufts comprising of bulk continuous filament (BCF) yarn, whereby the BCF yarn is inserted in the primary backing and projected on the opposite side of the insertion to form a tuft pile, a secondary backing layer and an adhesive between and in contact with the primary backing at the surface opposite the pile and the secondary backing.

The present disclosure relates to a biodegradable geotextile structure for soil biostimulation comprising a woven fabric structure of hydrophilic filament yarns of a cellulose fiber selected from the list consisting of: alpha cellulose, beta cellulose, gamma cellulose or mixtures thereof; at least a plant-based biopesticide selected from the list consisting of: Nicotine, Rotenone, Pyrethrins I, Pyrethrins II, Eugenol, Citronella oil, and mixtures thereof; at least a microalgae selected from the list consisting of: Chlorella spp., Scenedesmus spp, Dunaliella spp, Spirulina spp., and mixtures thereof. Furthermore, the present disclosure relates to a method to obtain said biodegradable geotextile structure.

The present disclosure relates to a biodegradable geotextile structure for soil rehabilitation comprising a woven fabric structure of filament yarns of a natural fiber, at least a plant nutrient and plant seeds, wherein the nutrient and the plant seeds are trapped in the apertures of the woven mesh of the woven fabric structure. Furthermore, the present disclosure relates to a method for producing said biodegradable geotextile structure.

The utility model discloses a kind of winding forming devices for high-grade white filament processing, comprising: drive seat, sliding block is slidably connected in drive seat interior, drive seat upper side is equipped with guide rail support mechanism, guide rail support mechanism upper side is equipped with support table, support table middle part is equipped with cylinder one, support table upper side is equipped with winding mechanism, drive seat front side is equipped with tension adjusting mechanism, drive seat outer one end is fixedly connected with motor one;The utility model is driven screw rotation by motor one, drive sliding block and sliding support seat move along limit slide rod, ensure that support table and winding mechanism transverse movement stability, realize winding uniformity, avoid " stack line " " jump line " It is guaranteed that winding density is consistent, without manual adjustment, adaptive high-speed winding, improve finished product pass rate, electric push rod one pushes open interval by movable shaft support, it is convenient to load into winding roller and reverse clamping fixed, cylinder one drives roller stand to adjust winding roller height, adaptive different line diameter and winding layer number.

The purpose of the present invention is to provide: a combined filament yarn having excellent flexibility and strength in a fiber length direction of a continuous reinforcing fiber; a method for producing a molded article; and a method for producing the combined filament yarn.　The combined filament yarn according to the present invention comprises continuous thermoplastic polyimide resin fibers (2) and continuous reinforcing fibers (1), wherein the ratio of the fineness of the continuous thermoplastic polyimide resin fibers (2) to the fineness of the continuous reinforcing fibers (1) (the fineness of the continuous thermoplastic polyimide resin fibers (2) / the fineness of the continuous reinforcing fibers (1)) is 0.009-0.090, the combined filament yarn is configured with intertwining of at least some of the continuous thermoplastic polyimide resin fibers (2) and at least some of the continuous reinforcing fibers (1) at a proportion of 1-500 locations per 500 m, and in the other portions, the continuous thermoplastic polyimide resin fibers (2) and the continuous reinforcing fibers (1) are arranged in parallel with linearity in the fiber length direction.

The application discloses a preparation method of renewable cashmere single-strand multi-branch particle yarn and belongs to the technical field of textiles, and the main production process is as follows: wooling, carding, spinning and bobbinning. The application improves the production process, and under the condition that the length dispersion coefficient of common cashmere fibers and renewable cashmere fibers is relatively large, the blending method, the carding process and the spinning process are improved, the blended yarn is realized as single-strand 4 branches in the later stage, the physical indexes of the blended yarn such as strength and elongation can all meet the weaving requirements, and the spinnability must meet the mass production requirements. The application enriches the application of renewable cashmere fibers and realizes sustainable development.

A high-elasticity carbon fiber yarn and three-dimensional tape are disclosed, comprising a main elastic core, elastic binding threads, and chopped carbon fiber filaments. Several chopped carbon fiber filaments are crimped end-to-end onto the outer surface of the main elastic core, and each chopped carbon fiber filament is fixed to the main elastic core by the elastic binding threads. The chopped carbon fiber filaments are impregnated with silicone resin. The carbon fiber tape woven by this invention uses high-elasticity carbon fiber yarn, which has strong elasticity, enabling the tape to fully adhere to the core during winding. The composite product after resin impregnation and curing is wrinkle-free. The elastic warp yarn made of chopped carbon fiber filaments, after resin impregnation and curing, can also provide significant tensile strength, just like filament yarns, to tightly cross-link the weft yarns.

The present invention relates to a split filament yarn having excellent cross-sectional formability and a manufacturing method thereof. The split filament yarn according to the present invention has excellent split workability, and a filament manufactured from the split filament yarn has excellent cross-sectional formability, the cross-sectional form of the filament can be uniform and diverse, and since the cross-sectional formability of the filament is excellent, a profiled cross-section can be formed, thereby enabling a fabric having improved touch and gloss to be provided. In addition, the manufacturing method of the split filament yarn according to the present invention has excellent split workability, and since the split workability is excellent, the rate of defective products can be reduced, thus having an advantage in terms of processes.