572 results about "Single filament" 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 invention relates to the technical field of fiber reinforcement, and discloses a melt impregnation weaving process of a flame-retardant fiber reinforced thermoplastic filling rope, the melt impregnation weaving process comprises fiber pretreatment, melt impregnation, multi-stage stretching setting, weaving forming and post-treatment, through the synergistic effect of plasma activation and nano flame-retardant pretreatment, the fiber surface activity and the flame retardant binding force are improved, and the flame-retardant fiber reinforced thermoplastic filling rope is obtained. Meanwhile, a segmented temperature control melt impregnation process is combined, so that the resin is ensured to form a uniform and complete coating layer on the surface of the fiber monofilament, the problems of weakening of interface bonding and non-uniform flame-retardant distribution in a traditional process are solved, and the flame-retardant efficiency and mechanical reliability of the filling rope are improved; a dynamic mathematical model of the tension gradient and the traction speed is established, the fiber crystallization orientation process is controlled, and the internal stress concentration phenomenon is eliminated; in combination with a dynamic tension compensation mechanism during weaving forming, the weaving tightness of the coating layer is corrected in real time, and the dimensional stability and the anti-fatigue performance of the filling rope under the complex load are guaranteed.

The invention provides an intelligent evaluation method for mechanical properties of a carbon fiber composite material, and relates to the technical field of material performance analysis, and the method comprises the following steps: evaluating the performance dispersion of a current batch of samples according to a fiber agglomeration area proportion and a carbon fiber monofilament diameter, and comparing the performance dispersion with a preset dispersion threshold, identifying a non-manufacturability discrete risk level; determining the tensile strength value of each sample through a tensile test, performing statistics to obtain a strength mean value and a strength standard deviation, performing matching analysis on the performance dispersion, the strength mean value and the strength standard deviation, and extracting the fiber reinforcement efficiency; performing weighted fusion processing on the fiber reinforcement efficiency and the fiber agglomeration area proportion to obtain a current batch fiber form comprehensive index, comparing the current batch fiber form comprehensive index with a historical batch, and identifying a fiber form change amplitude; and evaluating the quality consistency degree among the batches according to the strength deviation value and the dispersion difference among the batches, and identifying the non-manufacturability discrete source.

This invention provides a multifunctional gradient composite filament for 3D printing, its preparation method, and its applications, relating to the field of additive manufacturing materials technology. The filament's cross-section includes at least two structurally or functionally distinguishable regions, each region composed of a thermoplastic polymer with different chemical properties, or a thermoplastic polymer matrix with the same chemical properties but different functional modifications. These at least two regions are arranged in an ordered spatial pattern on the filament's cross-section using a multi-component co-extrusion technique, enabling pre-design and integration of properties. This invention overcomes the inherent limitations of traditional single-material filaments, achieving multifunctionality and performance designability of a single filament. It significantly improves the interlayer bonding performance of multi-component 3D printing and the comprehensive mechanical properties of the printed composite material. Furthermore, it allows for the production of components with both functional gradients and high mechanical properties in a single printhead operation, making it suitable for mass production.

The utility model relates to a center twisting type ultra-weak fiber bragg grating temperature and humidity stranded yarn, which adopts a humidity ultra-weak fiber bragg grating array, the temperature ultra-weak fiber bragg grating array and Kevlar fibers are combined to wrap a spiral armor tube, and then a metal wire braid layer is braided along the axial direction to form a temperature and humidity intelligent monofilament; the temperature and humidity intelligent monofilament serves as a center filament and is twisted with the six stainless steel wires to form a cable shape, and the temperature and humidity stranded filament of the ultra-weak fiber grating is manufactured. According to the utility model, the long-distance temperature and humidity ultra-weak fiber grating array is adopted to monitor temperature and humidity, temperature compensation is facilitated, temperature and humidity changes can be quickly responded, the filamentation porosity is large, the response speed is high, the mechanical strength is high, the adaptability is strong, and subsequent processing is facilitated.

The invention relates to a bi-component fiber and a preparation method thereof, polyester melt and polyamide melt are extruded from a spinneret plate side by side, cross air blowing cooling is performed to obtain nascent fiber, and then the nascent fiber is sequentially subjected to heat pipe heating, oiling, pre-interlacing, three-roller drafting heat setting and winding to obtain the bi-component fiber. The heat pipe is used for heating nascent fibers, and the temperature of the heat pipe is 90-100 DEG C; the three rollers comprise a first hot roller, a second hot roller and a third hot roller; the temperature of the first hot roller is 70-90 DEG C, the temperature of the second hot roller is 110-130 DEG C, and the temperature of the third hot roller is 140-160 DEG C; the filament number of the prepared bi-component fiber is 2.6-3.5 dtex, the breaking strength is larger than or equal to 3.23 cN / dtex, the elongation at break is 27.45-38.31%, the number of broken ends is smaller than or equal to 2.3 times / (48 bits. 24 hours), and the broken filament rate is stably controlled to be 0.30% or below. According to the preparation method, generation of internal stress is greatly reduced; the mechanical property of the bi-component fiber is improved, and the number of broken ends and the broken filament rate of the fiber are obviously reduced.

The present disclosure provides a novel type of fiber monofilament for use in place of non-sustainable cotton. The fiber monofilaments comprise at least 50% by weight of non-regenerated microfibrillated cellulose (MFC), an amino-functional polymer component, and an epoxy-functional crosslinker. In addition, the present disclosure provides a product comprising the fiber monofilament and a method of making the fiber monofilament.

The utility model discloses an air layer breathable fabric with upper and lower mesh jacquard and a vamp, and relates to the technical field of fabrics. The upper and lower mesh jacquard air layer breathable fabric comprises a surface layer, a middle layer and a bottom layer, the surface layer and the bottom layer are woven and connected through monofilaments or multifilaments to form an air layer, the middle layer comprises a plurality of cavities, and the surface layer and the bottom layer are both provided with a plurality of semi-through holes. The tuck semi-through holes and the full-through holes are formed in the surface layer and / or the bottom end, and the air layer is arranged between the surface layer and the bottom layer to improve the ventilation effect; the doubling stitch semi-through holes are formed in the surface layer and the bottom layer in an inclined needle mode, and the heat retention property of the air layer breathable fabric in the whole application process is improved; according to the air layer breathable fabric, the overall structure is matched, so that the fabric has breathability and heat retention property, the layer bodies are connected in a staggered mode, and the integrity of the fabric is better.

A polyester-based woven hook-and-loop fastener including: a woven-fabric and engaging elements, in which the woven-fabric in which a polyethylene terephthalate-based multifilament yarn is a warp yarn and a polyester-based heat-fusible multifilament yarn is a weft yarn is a woven base fabric, a yarn for the engaging elements made of at least one kind selected from the group consisting of a polyethylene terephthalate-based monofilament yarn and a polyester-based multifilament yarn, is woven in parallel to the warp yarn into the woven base fabric, the engaging elements that are formed of the yarn for the engaging elements, that are made of at least one kind selected from the group consisting of a large number of hook shapes and loop shapes, and that rise up from a front face of the woven base fabric, exist on the front face of the woven base fabric, bases of the engaging elements are fixed to the woven base fabric by a melt-solidified material of a heat-fusible component of the the polyester-based heat-fusible multifilament yarn, and the polyethylene terephthalate-based multifilament yarn is made of a copolymerized polyethylene terephthalate containing, as copolymerization components, 1.0 to 2.0 mol % of isophthalic acid with respect to a total amount of dicarboxylic acids and 2.0 to 3.5 mol % of diethylene glycol with respect to a total amount of diols.

Described is an insect net strip produced from a wide insect net which has been cut in a warp direction (xnet) by means of a one-step ultrasonic cutting and welding process. The insect net strip includes warp yarns and weft yarns extending substantially perpendicular to each other and at least 90% of the warp and weft yarns are monofilament yarns made of a thermoplastic material. After cutting and welding process the insect net strip has a first and a second edge extending parallel to said warp yarns each including a deformation zone being constituted by consolidated thermoplastic material deriving at least from said weft yarns. The deformation zone has a width (wdz) in the transverse direction (ystrip) of between 0.5-35 times the weft yarn diameter (øwe). At least 90% of gaps between adjacent weft yarns in the deformation zone are closed by consolidated thermoplastic material at least from the weft yarns which has been melted together to form a continuous or substantially continuous reinforced band-shaped edge portion of said insect net strip. The insect net strip is suitable for use in accordion-style constructions in greenhouse ventilation openings. A method for producing the insect strips is also described.

The invention relates to a high-strength and high-modulus polyacrylonitrile carbon fiber precursor, a carbon fiber and a preparation method thereof, and belongs to the field of polyacrylonitrile-based carbon fiber preparation. A wet spinning process is adopted, the method comprises the solidification step of at least two solidification baths, and n spraying devices are arranged between every two adjacent solidification baths in the solidification process to spray solutions to bath separation fibers; the concentrations Cg (i-1) and Cgi of the polar organic solvent in two adjacent coagulating bath solutions and the concentration C1-Cn of the polar organic solvent in the solution of the spraying device between the two adjacent coagulating bath solutions meet the following relational expression: Cg (i-1) is greater than or equal to C1gt; c2gt; C2gt; gt,... gt; cn > = Cgi, i > = 2, and n > = 3. The method mainly solves the problems that in the prior art, the breaking elongation coefficient of protofilaments (monofilaments) is large, and the number of broken filaments is large in the solidification process. According to the technical scheme, the problems are well solved, and the method can be used for preparing high-performance carbon fibers.

The invention relates to the technical field of cables, in particular to a torsion-resistant shielding cable and a manufacturing method thereof.The torsion-resistant shielding cable comprises a cable core, a filling layer, a wrapping shielding layer, an isolating layer, a braided shielding layer and an outer sheath, the braided shielding layer is coated with a bonding layer capable of filling the gap between the first braided unit and the second braided unit, under the action of the bonding layer, the broken monofilament is still attached to the adjacent monofilament, the broken position of the monofilament cannot tilt, and a cable sheath is prevented from being punctured by friction. The braided shielding layer is formed by braiding copper wires and graphene composite fibers, and the graphene composite fibers can enable the braided shielding layer to form a heat conduction channel which diffuses heat in the axial direction of the cable, so that the heat at the torsion part of the cable is diffused to the two ends of the cable, a cooling effect is achieved, and the fracture probability of the copper wires is reduced. And the torsion resistance of the cable can be improved.

This invention discloses an ultrafine polyethylene / polyester composite fiber and its preparation method, belonging to the field of composite fiber technology. It solves the problems of poor compatibility between the core and sheath layers, excessive fineness of PE / PET fibers, and difficulties in achieving ultrafine fiber production in existing technologies. The method involves preparing ultrafine polyethylene / polyester composite fibers using a core-sheath composite spinning process. The single filament fineness of the ultrafine polyethylene / polyester composite fiber is 0.6~0.8 dtex. The ultrafine polyethylene / polyester composite fiber has a core-sheath structure, with the sheath material being polyethylene and the core material being a blend of modified polyester and a compatibilizer. The modified polyester molecular chain consists of terephthalic acid segments, ethylene glycol segments, and isophthalic acid segments. The compatibilizer is a graft copolymer of polyethylene and poly(ethylene-co-glycidyl methacrylate)-g-polymethyl methacrylate. The preparation method of this invention is simple and easy to implement, with excellent core-sheath compatibility, which is beneficial for achieving ultrafine fiber production. The composite fiber exhibits excellent performance and can meet the demands of the high-end market.

The invention discloses a device and process of controlling / stabilizing tension in a filament / monofilament, flat / fibrillated tape or yarn while winding it on a core in a winding machine. More particularly, it discloses a multistage tension control device to precisely control the tension in winding of low denier yams as low as up to 15 denier or so. The initial stage of the device has a stabilization roller unit (1) and the last stage comprises a moving arm mechanism (7). The stabilization roller unit (1) comprises a yarn aligner support (4), a positively driven accumulator roller (3), a stabilization roller (2). The moving arm mechanism comprises a moving guide wheel (8), a moving arm (9), a pivot pin (14), a moving arm stopper (12), an exit guide wheel (10), a low friction cylinder (16), and a balance weight (15). The device and the process of invention improves the bobbin quality.

A fabric with a three-layer mesh bottom layer through hole structure comprises a surface layer which is a single-layer solid layer formed by interweaving transparent yarns with different elasticity, a middle layer which is formed by interweaving one or more than one shuttle of monofilaments up and down and is used for connecting the surface layer above the middle layer, and a bottom layer located below the middle layer, the bottom layer is a single-layer solid layer formed by interweaving different polyester yarns and monofilaments, the porous structure is located on the upper middle portion of the bottom layer, the porous structure is a warp weave structure formed by interweaving dyed yarns and transparent yarns in a staggered mode, the material is expanded to form any hole shapes, the air permeability is improved while the layers are rich, and the service life of the material is prolonged. The porous structure that the surface layer can see through the bottom layer is achieved through the layered structure, and the air permeability of the vamp can be further improved through the porous structure of the bottom layer.

The utility model discloses a high-performance fiber monofilament friction factor testing system based on sound signals, which comprises a signal processor, a controller, a motor, a sample carrying table, a friction roller and a sound acquisition device, the signal processor is connected with the controller, the controller is respectively connected with the motor and the sound acquisition device, and the motor is connected with the friction roller. The motor is connected with the sample carrying table; a fiber monofilament to be tested is hung on the friction roller, one end of the fiber monofilament to be tested is connected with a first weight, and the other end of the fiber monofilament to be tested is connected with the sample carrying table. According to the device, the friction factors of the high-performance fiber monofilaments under two contact working conditions of friction between the filaments and a carrier and friction between the filaments can be measured, and the friction behaviors of the fiber filaments of different types and different finenesses can be analyzed under various conditions of different loads, different moving speeds and the like.

The utility model discloses a spray velvet yarn, the spray velvet yarn includes: core yarn, knitting wool layer and outer covering yarn, the core yarn is formed by twisting and winding a plurality of low-elasticity filaments, the knitting wool layer is formed by disordered short fiber, the disordered short fiber of the knitting wool layer includes two types, and the outer covering yarn is formed by twisting and winding a plurality of low-elasticity filaments. One type is bottom silk formed by short fibers twisted among the low-elasticity filaments in the twisting and winding process and short fibers with roots penetrating into dynamic gaps among monofilaments forming the low-elasticity filaments, and the other type is free velvet formed by short fibers mutually adhered and wound together with the bottom silk; the outer wrapping thread is a high-elasticity filament which is twisted and wound on the outer side of the knitting wool layer, and the twisting and winding direction is opposite to the twisting direction of the core thread. By means of the mode, the soft and fluffy feeling of the yarn can be enhanced, and meanwhile yarn falling is reduced.

A protective textile sleeve includes a braided, tubular wall extending lengthwise along a central longitudinal axis between opposite ends. The wall includes hybrid yarns, with each of the hybrid yarns including at least one multifilament wrapped about a monofilament, such that the monofilament is concealed by the at least one multifilament.

Disclosed are exemplary embodiments of woven silt fence fabrics. In exemplary embodiments, the woven silt fence fabric may comprise a high-strength high-modulus monofilament woven silt fence fabric. In exemplary embodiments, the woven silt fence fabric may include two or more different warp yarns having different cross-sectional shapes in the machine direction and / or two or more different fill yarns having different cross-sectional shapes in the cross-machine / transverse direction.

The application discloses an impact-resistant mine protective clothing and belongs to the technical field of mine protective clothing. The mine protective clothing is provided with an impact-resistant protective layer, and the impact-resistant protective layer comprises alternately stacked and connected first and second functional layers. The outermost layer of the impact-resistant protective layer towards the outside of a wearer of the protective clothing is the first functional layer, the first functional layer is a composite material layer composed of aramid woven fabric and a second resin, the second resin is filled in the fiber gap of the aramid woven fabric as a continuous matrix and covers the fiber surface, the weaving raw material of the aramid woven fabric is aramid monofilament subjected to first resin impregnation pretreatment, the first and second resins are both thermosetting resins, the first resin comprises a first compound, the first compound contains a morpholine ring and is bonded in a crosslinking network of the first resin, and the second functional layer is a dynamic crosslinking polymer layer. Compared with the prior art, the application can not only resist impact and be hard, but also absorb impact force and reduce the risk of blunt injury of personnel.

The invention discloses a superfine denier nylon cotton-feeling fabric and a preparation method thereof, and the preparation method sequentially comprises the following steps: yarn configuration and weaving: weaving is carried out by adopting warp yarns and weft yarns, the weft yarns are nylon air textured yarns (ATY), and the weft yarns are prepared by FDY filaments with the filament number of not more than 10D through air texturing processing; the dyed fabric is subjected to padding treatment, adopted finishing liquid contains waterborne polyurethane and a fluoride-free waterproof agent, baking shaping is conducted after padding, and the fabric is subjected to humidifying and moisture regaining treatment during fabric discharging. According to the superfine denier nylon cotton feeling fabric and the preparation method thereof, the touch feeling of the nylon fabric is improved through the specific yarn structure design and the synergistic after-finishing technology, so that the nylon fabric has the soft comfort close to that of a cotton fabric, and meanwhile, the characteristics of high wear resistance and high strength of nylon fibers and the effective fluoride-free waterproof performance are kept.

The invention discloses a combined type netting twine separating machine for processing, and relates to the technical field of separating machines, the combined type netting twine separating machine comprises a rack main body, a yarn guide roller assembly, a separating mechanism and a tension adjusting assembly; the yarn guide roller assemblies are sequentially installed at the feeding end of the machine frame body in the yarn conveying direction, the yarn separating mechanism is connected with the machine frame body through a lifting support, and the tension adjusting assembly is fixed to the discharging end of the machine frame body through a driving unit installation base. The feeding path of the fishing net mother yarn can be precisely restrained through a multi-section type continuous guide structure of the yarn guide roller assembly, and step-by-step precise separation from the mother yarn to the monofilament is achieved in cooperation with the one-to-one correspondence design of the yarn separation needle row and the needle pitch comb teeth of the yarn separation comb tooth plate; and meanwhile, the static electricity eliminating strip can eliminate yarn friction static electricity, monofilament adsorption adhesion is avoided, the angle and position of the filament separating comb plate can be flexibly adjusted through cooperation of the arc-shaped supporting base and the guide sliding rail, the problems of filament doubling and filament leakage are thoroughly solved, and the uniformity and consistency of monofilaments obtained after filament separation are guaranteed.

The invention belongs to the field of interface structure characterization of a monofilament SiC fiber reinforced titanium / titanium aluminum-based composite material, and particularly relates to a quasi-in-situ measurement method for the thickness of an interface reaction layer of the monofilament SiC fiber reinforced titanium / titanium aluminum-based composite material. The monofilament SiC fiber reinforced titanium / titanium aluminum matrix composite is prepared by adopting a precursor wire method in combination with a hot pressing or hot isostatic pressing process, and an interface reaction layer can be formed on a fiber-matrix interface in the composite forming process of fibers and a titanium / titanium aluminum alloy matrix. And the thickness measurement positions and the number of measurement points of the composite material interface reaction layer in different states are specified, so that the accuracy and the consistency of measurement results are ensured. The method is suitable for measuring the thickness of the interface reaction layer of the monofilament SiC fiber reinforced titanium / titanium-aluminum-based composite material in a forming state and a heat treatment state, and a material data basis is provided for structural design and application of a monofilament SiC fiber reinforced titanium / titanium-aluminum-based composite material component.

The utility model discloses a zipper monofilament winding mechanism, and relates to chemical fiber preparation technology, the technical scheme is that the zipper monofilament winding mechanism comprises a machine body, an I-shaped roller and a rotating wheel, the machine body is provided with a storage groove, a connecting seat is rotatably connected in the storage groove, and the connecting seat is rotatably connected with a winding wheel which can be turned out of the storage groove. When the I-shaped roller stops rotating and part of monofilaments are loosened and fall under the inertia effect of the rotating wheel, an operator can use the winding wheel to wind the loosened monofilaments on the winding wheel, the step that the operator needs to disassemble the I-shaped roller and wind the falling monofilaments on the I-shaped roller is omitted, and when the winding mechanism is started again, the winding mechanism is convenient to operate. The winding wheel can rotate along with the I-shaped roller and collect monofilaments on the winding wheel on the I-shaped roller, the winding wheel can be stored in the storage groove, and when the winding mechanism is normally used, the monofilaments between the rotating wheel and the I-shaped roller cannot be interfered.

The application belongs to the technical field of polyester monofilament preparation, and particularly relates to an anti-fibrillation polyester monofilament and a preparation method thereof. The anti-fibrillation polyester monofilament is prepared by means of ultraviolet crosslinking post-treatment of the polyester monofilament on the basis of a conventional preparation process. The prepared polyester monofilament has excellent anti-fibrillation capacity by increasing crosslinking sites to improve the crystallinity of the fiber skin layer and to improve the interaction force between the original fiber molecular chains, the anti-fibrillation capacity is increased by more than 500%, and the mechanical properties are not obviously affected (the mechanical property retention rate is more than 90%), so the polyester monofilament has a wide market application prospect. In addition, the ultraviolet crosslinking post-treatment method has the advantages of small capital investment, safe and simple operation, high speed, little pollution to the environment, and small damage to the mechanical properties of the polyester monofilament, and is suitable for industrialized mass production.

The invention discloses a carbon fiber polyester composite felt and a preparation method thereof, and relates to the technical field of high polymer materials, and the preparation method comprises the following steps: (1) carbon fiber directional activation; (2) in-situ grafting of sheath-core monofilaments; (3) dual-network synchronous lapping; and (4) node in-situ thermal consolidation. According to the preparation method disclosed by the invention, a carbon fiber polyester composite felt preparation system without an additional binder is constructed by sequentially implementing four steps of processes of carbon fiber directional activation, skin-core monofilament in-situ grafting, dual-network synchronous lapping and node in-situ thermal consolidation, and molecular-level synergistic combination of carbon fibers and polyester components is realized. The interface bonding strength and structural integrity of the composite felt can be remarkably improved, and meanwhile, the mechanical bearing stability of the composite felt is improved, so that the problems that in the prior art, carbon fibers and a polyester matrix are poor in interface compatibility, layering and falling are prone to occurring, and the service life is short can be solved. And the problems that the mechanical property of the composite felt is reduced, the preparation process is complicated and the environmental protection property is insufficient due to the need of adding an external binder are solved.

The invention discloses a dyeing-free black soft polyester fiber and a preparation method thereof, and belongs to the technical field of waste polyester recycling. The preparation method comprises the following steps: melting and extruding waste PET (Polyethylene Terephthalate) with the intrinsic viscosity of 0.50-0.80 dL / g through a twin-screw extruder, and depolymerizing in an EG / BHET homogeneous system to obtain an oligomer with the polymerization degree of 5-7; mixing with carbon black slurry and a polycondensation catalyst, and carrying out pre-polycondensation and final polycondensation to obtain regenerated functional polyester; and finally, carrying out melt spinning under the conditions that the temperature is 275-285 DEG C and the speed is 2500-3500 m / min, so as to obtain the fiber with the monofilament of 0.5-2.0 dtex, the tensile modulus of 30-60 cN / dtex and the color fastness of more than or equal to grade 4. By accurately controlling the depolymerization degree and the dispersion system, the problems of pigment agglomeration, complex process and high fiber modulus in the prior art are solved, high-added-value recycling of the waste PET is realized, and the product can be used for close-fitting textiles.

Rope (3) made of textile fiber material, comprising a rope core (6) and a sheath (7) surrounding the rope core (6), characterized by the fact that the rope (3) comprises at least one antistatic multifilament yarn (5) or one antistatic monofilament which is provided in the rope core (6), in the sheath (7), in an intermediate sheath (8) located between the rope core (6) and the sheath (7) and / or in a reinforcement located between the rope core (6) and the sheath (7), wherein the antistatic monofilament or single filaments (12) of the antistatic multifilament yarn (5) each comprise a conductive fiber core (13) encased in a non-conductive plastic sheath (14), and wherein at least one antistatic multifilament yarn (5) or antistatic monofilament is twisted with a thread (16) or yarn made of another material, wherein said other material of the thread (16) or yarn is preferably UHMWPE or PES.

This invention proposes a design method for composite absorber wires used in optical fiber panels, the composite absorber wire itself, its fabrication method, and its applications. The design method calculates the area ratio A of the absorber wire to the filler wire and the area ratio B of the absorber wire to the monofilament wire in existing processes; matches the wire arrangement scheme to ensure that the area ratio C of the absorber material to the filler material deviates from A by ≤1%; and then adjusts to determine the drawing dimension H of the composite absorber wire, ensuring that the ratio D of the total cross-sectional area of ​​the absorber material to the total cross-sectional area of ​​the monofilament wire deviates from B by ≤1%. The composite absorber wire integrates the absorber material and the filler material, and its shape can be selected as an equilateral triangle, square, or regular hexagon. During fabrication, after integration, arrangement, and drawing, it is inserted into the gaps between the primary wires in the optical fiber panel. This invention simplifies the original two wire insertion operations to a single operation, increasing single-person time efficiency by 40%, increasing production capacity by 62.5%, reducing the rework rate to 0%, and reducing the mesh defect rate from 5% to 1%, thus stably ensuring the mesh, contrast, and transmittance performance of the optical fiber panel.

The application belongs to the technical field of textiles, and particularly relates to a high-low temperature TPU monofilament yarn, a processing technology thereof and a knitted vamp, comprising a TPU yarn with a skin-core structure, wherein the TPU yarn comprises a core layer and a skin layer, the core layer is modified for the purpose of improving the melting point, and the melting point of the skin layer is lower than that of the core layer; the core layer is modified by using a TPU raw material, so that the melting point of the core layer is improved, and the problem of poor thermal stability and easy decomposition under high temperature is solved; and the melting point of the core layer is higher than that of the skin layer, so that the processing cost of the whole monofilament yarn is reduced under the condition of modifying and improving the melting point.