126 results about "Filament yarn" patented technology

The invention discloses special cloth for a single-sided terry bath foaming towel and a weaving method of the special cloth. The terry cloth comprises a three-layer structure integrally woven by a warp knitting machine, wherein the three-layer structure comprises a base layer and 100D / 36F polyester filament yarn warp knitting chain weave; the binding layer is a 100D / 96F polyester filament chain stitch and penetrates through the substrate layer; the looped pile layer is of a vertical looped pile structure formed by 300D / 10F polyester filaments, the height of looped piles is 7-8 mm, and the density of the looped piles is 25-30 / cm; the thickness ratio of the base layer to the binding layer to the looped pile layer of the three-layer structure is 0.6: 1: 7. The three kinds of yarns with different thicknesses are combined to form a three-layer structure, the three-layer structure is directly formed through warp knitting, a traditional fuzzing roller is not needed for fuzzing, the upright performance of a looped pile is guaranteed, it is guaranteed that the looped pile does not generate monofilament breakage and is stable in structure, and the foaming performance and the weaving feasibility are balanced.

The application discloses a kind of bundled biaxial skin-core structure tensile yarn spinning processes, specifically including the following steps, step S1: one low modulus high elongation fiber filament one and one low modulus high elongation fiber filament two are unwound by active feeding roller, and are respectively fed into lower layer hollow spindle center tube one and lower layer hollow spindle center tube two, as two core filaments;Step S2: high modulus low elongation fiber filament one is wrapped on the surface of the core filament in positive helical line configuration at lower layer guide hook one;High modulus low elongation fiber filament two is wrapped on the surface of the core filament in reverse helical line configuration at lower layer guide hook two;Form biaxial skin-core structure covering yarn system, and pass through upper layer hollow spindle center tube;Step S3: at upper layer guide hook, the fiber filament yarn with excellent elastic elongation wound on upper layer hollow spindle is bound to the surface of the biaxial skin-core structure covering yarn system with low spiral covering density, to form bundled biaxial skin-core structure tensile yarn.

The utility model discloses a bundling device used after spinning and cooling of superfine denier polyester filaments, and relates to the technical field of bundling devices.The bundling device comprises a bundling plate, the bundling plate is connected with a plurality of carrying plates, each carrying plate is provided with a plurality of guide holes, the bottom of the bundling plate is connected with a bundling piece, and the number of the guide holes in every two adjacent carrying plates is larger than that of the bundling piece. The number of the guide holes closest to the bundling piece is smaller than the number of the guide holes farthest away from the bundling piece, each carrier plate is provided with an installation groove communicated with the corresponding guide hole, an installation block is installed in the installation groove and connected with two fixing blocks in a sliding mode, and the carrier plates are provided with fixing grooves for the corresponding fixing blocks to be clamped in. The mounting block is connected with a driving assembly used for driving the two fixing blocks to slide in the direction close to each other or away from each other. When the mounting block needs to be taken out of the mounting groove, the driving assembly drives the two fixing blocks to slide in the direction away from each other, so that the fixing blocks are separated from the fixing groove, the mounting block can be taken out of the mounting groove, and the dismounting efficiency of the mounting block is improved.

Interlock knit textiles and methods of forming and using interlock knit textiles are described. Three structural properties have been found to contribute to improved stretch properties in interlock knits. The three structural properties include the use of a unique knitted loop shape, the use of fine filament yarns, and the use of elasticated yarns having lower hysteresis than conventional elastane. The described interlock knit textiles can include one, two or all three of these structural properties. The improved stretch properties can include values for percent elongation or modulus in the length direction which are close to or the same as their values in the width direction.

A field emission (FE) cathode for a vacuum electronic device (VED) includes a graphite substrate or framework in the shape of a hollow cylinder, and at least one continuous carbon nanotube (CNT) fiber in tension or compression around at least a portion of the graphite substrate. The at least one continuous CNT fiber can include a filament, yarn, braided yarn, film, fabric, or combination thereof. The at least one continuous CNT fiber is secured to the electrically conductive substrate by vacuum brazing or any other suitable means.

The invention relates to the field of spinning, and particularly discloses a polyester filament yarn preparation process which comprises the following steps: drying polyester chips, mixing the dried polyester chips with a hydrophilic agent, carrying out melt spinning to form nascent fibers, adopting a linear spinneret plate during spinning at the spinning speed of 4000-6000 m / min, carrying out traction treatment, carrying out heat setting treatment, carrying out alkali treatment, and winding to obtain the polyester filament yarn. Preparing polyester filament yarns; wherein the hydrophilic agent is a mixture of PEG (Polyethylene Glycol) 2000 and PEG 400 in a mass ratio of 1: (2-3). The preparation method has the characteristic that the prepared polyester filament yarn has better hygroscopicity and more excellent mechanical properties.

The invention discloses a double-layer four-side elastic wool type jean fabric and a preparation method thereof, and belongs to the technical field of textiles. The double-layer four-side elastic wool type jean fabric comprises a surface layer and a skin attaching layer, the surface layer is a twill fabric surface formed by interweaving first warp yarn and weft yarn, and the skin attaching layer is an elastic base layer formed by interweaving second warp yarn and weft yarn; the double-layer four-side elastic wool type jean fabric further comprises edge weaves located on the two sides, each side is composed of 48 pieces of edge yarn, and a 2 / 2 warp rip weave is adopted. Wherein the second warp is polyester wrap yarn, first spandex in the polyester wrap yarn wraps the surface of polyester filament yarn in the Z twist direction, the twist range is 630-730 twists per meter, and the wrapping density is larger than or equal to 85%. The double-layer four-side elastic wool type jean fabric has the characteristics of high elasticity, durability, bacteriostasis, protection, softness and comfort.

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 invention belongs to the technical field of evaluation methods, and relates to a convolutional feature fused polyester filament yarn heather grey fabric appearance uniformity evaluation method, which sequentially comprises the following steps of: inputting an image I of a polyester filament yarn heather grey fabric into a pre-trained VGG16 network; extracting feature maps of the first convolution layer, the second convolution layer and the third convolution layer, calculating structural feature maps of all the feature maps, scaling the structural feature maps, multiplying the scaled structural feature maps point by point to obtain a fused structural feature map, calculating the value of an appearance uniformity evaluation index U based on the obtained fused structural feature map, and judging the appearance uniformity according to the value U. According to the method, effective fusion of the multi-scale texture information of the polyester filament yarn heather grey fabric is realized, the accuracy of uniformity evaluation is improved, the local change condition of the fabric texture can be reflected, and the subjectivity of manual evaluation is avoided.

Embodiments of the invention relate to flame resistant fabrics formed of a combination of filament and long staple yarns that exhibit excellent physical and thermal properties at relatively light weights.

The invention relates to a high-elasticity fabric with high dimensional stability, which comprises a fabric body, a bonding layer and an elastic fabric layer, the fabric body sequentially comprises a skin-friendly layer, an elastic connecting layer and a thermal insulation layer from top to bottom; the skin-friendly layer, the elastic connecting layer and the heat preservation layer are woven into a whole through weft knitting air layer tissue. The bottom end of the fabric body is fixedly connected with the top end of the elastic fabric layer through the bonding layer; the skin-friendly layer is formed by weaving wrap yarns, core yarns of the wrap yarns are spandex filaments, and yarn skins of the wrap yarns are blended yarns formed by uniformly mixing and spinning far infrared heating acrylic fibers / antibacterial viscose fibers; the elastic connecting layer is formed by weaving SORONA monofilaments, the heat preservation layer is formed by weaving hollow polyester filaments, and the elastic fabric layer is formed by vertically interweaving warp yarns and weft yarns in a plain weave structure; the fabric is high in size stability, good in environmental protection property and good in skin-friendly heat retention property.

The utility model relates to the technical field of polyester filament yarns, and discloses a high-color-degree colored polyester filament yarn which comprises a supporting disc, a vertical rod is fixedly connected to the middle of the top side of the supporting disc, a limiting disc is slidably connected to the top of the outer wall of the vertical rod, and a sliding block is fixedly connected to the top of the limiting disc. A rotating disc is slidably connected to the outer wall of the top of the sliding block, a sliding groove is formed in the bottom of the rotating disc, a connecting rod is slidably connected to the interior of the sliding groove, a clamping strip is fixedly connected to the bottom of the connecting rod, clamping grooves are formed in the left side and the right side of the top of the outer wall of the vertical rod, and a winding cylinder is slidably connected to the outer wall of the vertical rod; first sliding grooves are formed in the left side and the right side of the top of the limiting disc. The winding cylinder is inserted into the outer wall of the vertical rod, the limiting disc is clamped on the vertical rod, the rotating disc is rotated, the sliding groove drives the connecting rod to move, the clamping strip is inserted into the top of the vertical rod, the winding cylinder is fixed, polyester filament yarn is conveniently collected, and working efficiency is improved.

The invention discloses a polyester filament yarn network degree preprocessing system based on centrifugal separation, which relates to the technical field of separation, and is characterized in that an image acquisition control unit and an image screening unit are introduced into an image acquisition module, image acquisition is triggered only when the centrifugal device is in the stable rotating speed interval, and image frame shooting is carried out in a synchronous shutter mode; and the image screening unit further executes Laplace transformation on the original image frame to obtain an image definition score value, weighted judgment is carried out in combination with the marginal definition evaluation index of the structural region, and a frame of image with the optimal comprehensive quality is selected as a target image frame for subsequent analysis and processing. According to the above structure, dual control of original image acquisition opportunity and quality is realized, tow vibration and edge reflection interference are effectively reduced, and image structure stability and local feature retention rate are improved.

The invention relates to the field of new textile materials, and discloses a high-breathability waterproof fabric and a preparation method thereof.The fabric comprises a surface layer fabric, a functional middle layer and an inner layer fabric which are sequentially laminated and compounded; the surface layer fabric is a polyester filament yarn fabric finished by a self-crosslinking type fluoride-free water-repellent emulsion consisting of octadecyl acrylate, dodecyl methacrylate and N-hydroxymethyl acrylamide; the functional middle layer is a polytetrafluoroethylene microporous membrane coated with a moisture curing type hydrophilic polyurethane adhesive, and the raw materials of the adhesive comprise polyethylene glycol 2000, 2, 2-dimethylolpropionic acid and isophorone diisocyanate; and the inner-layer fabric is a superfine denier polyester fiber and bamboo charcoal fiber blended knitted fabric. The contradiction that the air permeability and the bonding fastness of the PTFE microporous membrane are difficult to consider at the same time is effectively solved through a gradient pressurization process, meanwhile, one-way moisture conduction is achieved through the inner-layer superfine fibers and the middle-layer hydrophilic component, and the PTFE microporous membrane has high hydrostatic pressure resistance, high moisture permeability and excellent washing fastness.

The utility model provides a one-way moisture-conducting weft knitting fabric which comprises a fabric body, the fabric body comprises inner layer yarn presenting a mesh jacquard texture and surface layer yarn presenting a plain texture, the surface layer yarn is formed by weaving 75D / 36F / SD / DTY moisture-absorbing and quick-drying polyester filament yarn, and the inner layer yarn is formed by weaving 75D / 36F / SD / DTY one-way moisture-conducting polyester filament yarn. The one-way moisture-conducting polyester filament yarn and the quick-drying polyester filament yarn are woven into the inner layer yarn presenting the mesh jacquard texture and the surface layer presenting the plain texture, so that the appearance attractiveness of the fabric is improved, meanwhile, the excellent one-way moisture-conducting and quick-drying functions are achieved, and the requirement of a consumer for the comfort degree of clothes in the state of a large amount of wet sweat in the exercise process can be met.

A molded tufted carpet system for automotive trim components or flooring includes a nonwoven primary backing, a plurality of tufts comprised of bulk continuous filament (BCF) yarns inserted into the primary backing and projecting opposite the insertion to form a tuft pile, a secondary backing layer, and an adhesive between and in contact with the primary and secondary backings on the surface opposite the pile.

The invention relates to the technical field of functional textile materials, in particular to a temperature-control chenille fabric and a preparation method thereof. According to the invention, a three-layer composite structure with a vertical gradient functional zone is constructed, wherein a close-fitting one-way moisture conducting layer is formed by special-shaped section terylene; a lower-layer polypropylene fiber network and an upper-layer moisture-absorbing heating fiber are compounded through a knitted structure to form an intelligent response layer, so that spatial isolation between a sweat path and a heating path is realized; and the outer layer is a heat preservation tufting layer formed by blending hollow solid-solid phase change fibers and polyester filament yarns. According to the method, moisture absorption heating and rapid perspiration can be triggered under different conditions, stable buffering of solid-solid phase change is matched, the intelligent synergistic effect of rapid moisture guiding evaporative cooling during sweating and active heating and moisturizing during drying and low temperature is achieved, and the dynamic heat and humidity comfort is remarkably improved.

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 application relates to a preparation method of a self-powered heating and warm-keeping knitted fabric, and relates to the field of thermal textile materials. The self-powered heating and warm-keeping knitted fabric is prepared by doubling electrically-conductive cotton yarn and thermal nylon yarn, and weaving a double-reverse air layer double-layer knitted fabric through an arbitrary commercial flat knitting machine; the electrically-conductive cotton yarn is cotton yarn immersed with silver nanowires, and the thermal nylon yarn is a nylon filament yarn. In this case, based on the principle of a friction nanogenerator, mechanical energy is converted into electrical energy, and then efficient electrothermal conversion is realized by using the metal characteristics, that is, the unique structure of the knitted fabric is used to improve the conversion efficiency among mechanical energy, electrical energy and thermal energy, and the double-layer knitted fabric itself has the warm-keeping performance, so that self-powered heating and warm-keeping are realized.

The utility model discloses an electrostatic elimination device for polyester filament yarn production, which relates to the technical field of electrostatic treatment in polyester production and comprises a spinning manifold and a support, spinneret plates are symmetrically arranged on two sides of the lower end of the spinning manifold, and a placing groove is formed between the two spinneret plates. A water spraying pipe is arranged in the containing groove, a plurality of spraying nozzles are fixed to the two sides of the side wall, located in the containing groove, of the water spraying pipe, the outer side end of the water spraying pipe is connected with an atomization humidifier, and an ion fan is fixed to the lower end of the containing groove and used for blowing water mist to polyester filaments and neutralizing static electricity; the utility model discloses a static elimination device for polyester filament yarn production. Static electricity accumulation of the polyester filament yarn is remarkably reduced through the dual effects of water mist humidification and the ion fan; the adjustable filament guide mechanism ensures that filaments are vertically downward, filament floating is avoided, and the production stability is improved; the conductive rod and the wire guiding mechanism cooperate to enhance the static electricity guiding-out efficiency.

The invention relates to the technical field of dust removal of high-temperature flue gas, and particularly discloses a production method of a glass fiber PTFE (Polytetrafluoroethylene) base cloth reinforced high-temperature-resistant filter material. The production method comprises the following steps that glass fiber filament yarn is subjected to heat treatment at 350-400 DEG C, the glass fiber yarn subjected to heat treatment passes through composite emulsion and is dried, and warp yarn is obtained; taking the PTFE filament yarns as weft yarns, and making the warp yarns and the weft yarns into woven cloth by adopting a rapier loom, so as to obtain glass fiber PTFE base cloth; the preparation method comprises the following steps: mixing chopped PTFE fibers and chopped glass fibers according to a weight ratio of (4-7): (3-6), opening and carding, and carrying out lapping, grid connection and pre-needling by taking glass fiber PTFE base cloth as base cloth, so as to obtain a composite pre-needled felt; the composite pre-needled felt is subjected to spunlace reinforcement treatment and singeing and then soaked in a stiffening agent, mangling and drying are conducted after soaking, and the glass fiber PTFE base cloth reinforced high-temperature-resistant filter material is obtained. The mechanical property of the filter material can be improved.

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.

The invention discloses a paper yarn fabric with continuous cool feeling and a preparation method thereof, and relates to the technical field of paper yarn fabric production.The preparation method comprises the steps that core spun yarn is taken according to the mass ratio of (6.9-7.1): (2.9-3.1), fine denier polyester filament yarn is lined in the core spun yarn, the density of the fabric is controlled to be 150-170 g / m < 2 >, and the fabric is obtained; the method comprises the following steps: taking a fabric, a moisture absorption and sweat releasing finishing agent and a xylitol cool feeling finishing agent according to a mass ratio of (95-105): (3-5): (4-6): (1400-1600) at the temperature of 90-100 DEG C, adding the materials into distilled water, and carrying out water bath for 20-30 minutes; and carrying out heat setting for 1-2 min at the temperature of 160-180 DEG C to obtain the paper yarn fabric. The hyperbranched modified boron nitride is used as a nano filler, and the boron nitride has excellent heat-conducting property, so that heat is conducted and dispersed to the whole fabric, heat accumulation is avoided, and continuous cool feeling is provided.

This article is a breathable tape warp-knitted using a double Russell machine. The warp-knit breathable tape of this article has one band portion, another band portion, and a breathable portion made of multiple monopolymer filament yarns connecting the one band portion and the other band portion in a direction perpendicular to the band surface direction. The article can be used in a garment by inserting the article into the seam between two fabrics constituting the garment, thereby imparting breathability to the seam. As shown in Reference Cross-sectional Schematic Diagram 1, which illustrates an example of the use, the outer band portion of the article can be sewn so that it is covered by the garment fabric. Alternatively, as shown in Reference Cross-sectional Schematic Diagram 2, the outer band portion of the article can be sewn so that it is exposed from the garment fabric. Specifically, the article can be inserted, for example, at the boundary between the crown and brim of a hat, or the boundary between the back yoke and back body of a shirt, to impart breathability to those areas.

The invention provides a preparation method of a moisture-absorption quick-dry fabric, which comprises the following steps: S10: heating and melting polyester chips, extruding a melt by using a spinneret plate, enabling the melt to generate volume expansion by using a phase change expansion process in the extrusion process, and cooling and curing to obtain microporous fibers; s20, compact siro spinning or ring spinning equipment is adopted for spinning the microporous fibers, the twist degree of the yarn is set to be within the range of 6 twists / cm to 16 twists / cm, twisting is conducted, and the moisture-absorbing and quick-drying yarn with the fineness being 20 s to 120 s is prepared; and S30, weaving by adopting a knitting plaiting process, feeding and weaving hydrophobic polyester filament yarns as ground yarns on the inner layer of the fabric, and feeding and weaving moisture-absorbing quick-drying yarns as surface yarns on the outer layer of the fabric. The moisture-absorbing and quick-drying fabric prepared by the preparation method is good in moisture-absorbing and quick-drying effect durability and excellent in moisture-absorbing performance.

Interlocking knitted textiles and methods of making and using the same. Interlocking knitted textiles and methods of forming and using interlocking knitted textiles are described. Three structural properties have been found to contribute to improving tensile properties in interlocked knitted fabrics. The three structural properties include: use of a unique knitted loop shape; using a slender yarn; and using an elastic yarn having a lower hysteresis than conventional elastic fibers. The described interlocking knitted textiles may include one, two, or all three of these structural properties. The improved tensile properties may include values of percentage elongation or percentage modulus in the length direction that are close to or the same as their values in the width direction.

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.

The utility model discloses a recycling and reprocessing system suitable for forming a yarn waste barrel in a continuous spinning process, and belongs to the technical field of continuous spinning viscose filament yarn production. The recycling and reprocessing system comprises a winding machine, a two-for-one twister and a sizing yarn steaming machine which are sequentially arranged, the winding machine comprises an overfeeding device, a tension device, an oiling device and a winding device I, and the two-for-one twister comprises a twisting device, a tension adjusting device and a winding device II. The sizing yarn steaming machine comprises a shell, a sizing trolley used for containing the two-for-one twisting cylinder and a containing frame used for containing the sizing trolley, an inner cavity of the shell is connected with a vacuum pipe, a steam pipe and a medicament spraying pipe, and spraying openings in the medicament spraying pipe are distributed in the middle and / or the rear portion of the inner cavity of the shell. By combining an existing winding machine, an existing two-for-one twister and an existing sizing yarn steaming machine and adaptively arranging corresponding structures, yarn in a waste drum has a certain twist degree, the performance such as strength, elasticity and toughness of the yarn is improved, the waste yarn drum is turned into wealth, and the industrial production requirement is met.

This article is a breathable tape warp-knitted using a double Russell machine. The warp-knit breathable tape of this article has one band portion, another band portion, and a breathable portion made of multiple monopolymer filament yarns connecting the one band portion and the other band portion in a direction perpendicular to the band surface direction. The article can be used in a garment by inserting the article into the seam between two fabrics constituting the garment, thereby imparting breathability to the seam. As shown in Reference Cross-sectional Schematic Diagram 1, which illustrates an example of the use, the outer band portion of the article can be sewn so that it is covered by the garment fabric. Alternatively, as shown in Reference Cross-sectional Schematic Diagram 2, the outer band portion of the article can be sewn so that it is exposed from the garment fabric. Specifically, the article can be inserted, for example, at the boundary between the crown and brim of a hat, or the boundary between the back yoke and back body of a shirt, to impart breathability to those areas.

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.