86 results about "Single fibre" patented technology

The invention discloses a method and a system for constructing a fiber scale parameterized model of a single-sided weft-knitted fabric, relates to the field of dynamic simulation of weft-knitted fabrics, and solves the problems that an existing knitted fabric simulation system only displays an embroidery pattern in a yarn scale or a fabric scale and lacks a three-dimensional dynamic effect based on a fiber level and the like. The method comprises the steps that the weft-knitted fabric is formed by mutually intermeshing coils, and the number and coordinates of coil control points are set; the simulation of different knitting effects is realized by adjusting the positions of coil control points; based on the single fiber curve model, using a random jitter algorithm to carry out modeling on the fiber bundle, and constructing an untwisted fiber bundle model and a twisted fiber bundle model; a branch model is constructed to simulate the hairiness form of the weft-knitted fabric, and dynamic regulation and control of hairiness characteristics are achieved by adjusting the number of breakpoints, the branch length range and the disturbance amplitude core parameters. Environment parameters are set, an OpenGL illumination function is used for representing the stereoscopic impression of the weft-knitted fabric model, and after the weft-knitted fabric model is rendered, the model is output.

Fibrous cleaning material and roller compositions for floor cleaners are provided. The fibrous cleaning material can include a plurality of unit fiber sections. Each unit fiber section in the plurality of unit fiber sections can include a first fine fiber material having a fineness of less than about 1 denier, a second fine fiber material having a fineness of between about 1 and 10 denier, a first bristle material having a fineness of between about 10 and 50 denier, and a second bristle material having a fineness of greater than about 100 denier. A bristle lay of the unit fiber section and a small fiber lay of the unit fiber section can be skew relative to each other.

The invention discloses a functional regenerated polyester-nylon composite superfine fiber and a preparation method thereof, and belongs to the technical field of composite fibers. The fiber is of a core-skin structure, a core layer is made of modified regenerated polyester containing superfine graphite, polyethylene glycol and an antibacterial additive, and a skin layer is made of modified regenerated chinlon containing a chain extender, a silane coupling agent and an antibacterial additive; the preparation method comprises the steps of regenerated raw material ultrasonic cleaning, melting chain extension, modified melt preparation, composite spinning and post-treatment splitting. The single fiber linear density of the fiber is 0.142-0.150 dtex, the breaking strength is larger than or equal to 6.5 cN / dtex, the thermal decomposition temperature is larger than or equal to 345 DEG C, the antibacterial rate is larger than or equal to 99.2%, the specific surface area is larger than or equal to 15200 cm < 2 > / g, and the fiber is excellent in comprehensive performance and can be used in the field of high-end electronic dust-free cloth. And the utilization rate of regenerated raw materials is not less than 90%.

Provided is a glass cloth having a single fiber diameter of less than 3.0 [mu] m, a thickness of 15 [mu] m or less, a mass of 10 g / m2 or less, and an excellent dielectric loss tangent. The glass cloth contains 50% by mass or more of SiO2 in the composition, the single fiber diameter of either warp or weft constituting the glass cloth is less than 3.0 [mu] m, the thickness of the glass cloth is 15 [mu] m or less, and the mass of the glass cloth is 10 g / m2 or less.

The present application provides a packing for gas-liquid contact, which has high gas-liquid contact efficiency and can be formed of light and low-cost material. The present application uses a composite yarn 44 composed of a single fiber and a wire, a combination of a single fiber yarn 42 composed of only a single fiber and a wire yarn 43 composed of only a wire, or a fabric or a knit formed of all or any combination of the single fiber yarn 42, the wire yarn 43, and the composite yarn 44, to constitute a strip-like material 71 having gaps between yarns 46 and yarns 46; and by alternately performing a mountain fold and a valley fold in a direction intersecting the length direction of the strip-like material 41, forming a bellows shape, and stacking a plurality of the bellows-shaped strip-like materials 41, a packing is formed.

The application discloses an automatic testing system for single-fiber interfacial shear strength, which comprises a single fiber with a resin drop, a clamp assembly for vertically fixing the single fiber and stretching the resin drop, and a testing system for detecting the single-fiber interfacial shear strength; the clamp assembly comprises a fixing frame for fixing two ends of the single fiber and movable along the direction of a single-fiber fixing shaft, and a pair of cutters located on both sides of the connection between the fiber and the resin drop; the testing system comprises a resin drop length acquisition module, a shearing force acquisition module, a motion control module and a calculation module. The application further provides an automatic testing method. The system provided by the application can effectively improve the detection accuracy and efficiency of the single-fiber interfacial shear strength.

The present invention pertains to a composite material comprising (a) at least one type of curable resin and (b) at least one type of aramid single fiber, wherein the average diameter of the aramid single fiber (b) as determined by a centrifugal sedimentation method is less than 2000 nm. According to the present invention, an article having excellent mechanical properties can be produced.

The invention relates to the technical field of polyvinyl alcohol fiber surface modification, and particularly provides a method for preparing hyperbranched polyamide surface modified polyvinyl alcohol fibers through a one-step method and application of the hyperbranched polyamide surface modified polyvinyl alcohol fibers in cement-based materials. The surface modification method comprises the following raw material components: 1 part of polyvinyl alcohol fiber, 1-3 parts of 3, 5-diaminobenzoic acid, 0.1-0.3 part of 4-dimethylaminopyridine and 100 parts of N, N-dimethylformamide. The modification method comprises the following steps: mixing the raw materials, and keeping the constant temperature of 50-80 DEG C to react for 2-5 hours to obtain the surface-modified polyvinyl alcohol fiber. The application comprises the following steps: verifying the change of the interfacial strength between the fiber and the cement-based material before and after modification through a single fiber pull-out sample, and obtaining the change of the mechanical property parameters of the fiber before and after modification through a single fiber tensile test. Compared with unmodified polyvinyl alcohol fibers, the tensile strength and the elongation at break of the surface-modified polyvinyl alcohol fibers disclosed by the invention are respectively improved by 1.1-1.6 times and 1.4-2.2 times; the surface-modified polyvinyl alcohol fiber can enhance the interfacial strength with cement, and the interfacial strength can reach 3.7-6.3 times that of unmodified polyvinyl alcohol fiber; the method can be widely applied to the field of fiber reinforced cement-based composite materials, and has a wide application prospect.

The present application relates to the field of large tow carbon fiber continuous production, and discloses an oiling method of large tow precursor.The method comprises the following steps: dividing the large tow precursor into alternate flat sections and folded and bent sections along the length direction, first oiling the large tow precursor, and controlling the oil content of each section to be the same;second oiling the flat sections of the large tow precursor, and controlling the oil content difference between the flat sections and the folded and bent sections of the large tow precursor to be within 0.1% when the large tow precursor is folded and packed and then unwound.After the large tow precursor is oiled by the oiling method provided by the present application, the large tow precursor is flat and folded and packed, and when the large tow precursor is unwound to an oxidation furnace, the oil content difference between the flat sections and the folded and bent sections of the large tow precursor unwound from the box is within 0.1%, the single fibers of the folded and bent sections of the large tow precursor do not adhere to each other, the large tow precursor is easy to separate, the amount of carbon fiber hair is reduced, the strength of the carbon fiber is improved, the carbon fiber is soft and supple, and does not become hard and brittle.

The invention relates to the technical field of composite non-woven fabrics, and particularly discloses a preparation device of a high-filling-power polyester composite non-woven fabric. The device is characterized by further comprising a working roller, the working roller is arranged in the working table, and the working roller decomposes non-woven fabric polyester fiber bundles into single fibers through high-speed rotation; a carding roller; after the working roller splits and flattens single fibers, the rotating carding roller continuously cards the single fibers, impurities and short fibers can be removed in the process, meanwhile, a worker can start the working motor to drive the movable wheel to rotate, the multiple adjusting plates and the carding roller move at the same time, the closer the carding roller is to the working roller, the more sufficient the carding is, and the carding efficiency is improved. The straightening degree, the separation degree, the parallelism degree and the singularization degree of fibers are remarkably improved, the carding rollers are far away from the working rollers, fiber damage is conveniently reduced, the device is suitable for short fibers and crude fibers so as to improve the carding effect, and it can be conveniently guaranteed that the multiple carding rollers can adjust the carding strength and improve the carding effect according to the non-woven fabric cotton material requirements.

This invention provides a novel false-twist multifilament yarn that has excellent yarn properties such as strength and elongation, and is sufficiently crimped by false-twist processing. When used in clothing or interior goods, it does not naturally disintegrate and can be used under normal conditions. Furthermore, when recycled after use, it can be melted at low temperatures into a resinous substance and molded into a shape that allows it to be pelletized again. [Solution] A false-twist multifilament yarn composed of single fibers formed from a copolymer polyester containing terephthalic acid as an acid component and ethylene glycol and 1,4-butanediol as glycol components, wherein the false-twist multifilament yarn has a breaking strength of 2.0 cN / dtex or more, an elongation at break of 45% or less, a crimping rate of 25-75%, and an elasticity recovery rate of 20-55%.

The application discloses a high-purity and difficult-graphitization viscose-based carbon fiber felt preparation method and equipment, the high-purity and viscose-based carbon fiber felt has impurity element content ratio less than 50ppm, single fiber strength greater than 120Mpa, and graphitization degree less than 85% after 2650 DEG C treatment; the application also provides a high-purity, high-strength and difficult-graphitization viscose-based carbon fiber felt preparation equipment which is composed of a felt inlet air seal section, a heat treatment section, a cooling section, a felt outlet air seal section and a cooling section. The metal impurities in viscose fibers are removed through pickling, the viscose fibers are needled into a felt, impregnated with a catalyst, dried, and then subjected to catalytic dehydration in a micro-negative pressure inert atmosphere, and finally carbonization and graphitization are carried out to obtain the high-purity and high-strength viscose-based carbon fiber felt with low ash content and less tar pollution. The raw materials used in the application are rich, the preparation process is simple, the equipment corrosion is effectively controlled, the high-purity and high-strength product is prepared, and the product production efficiency is greatly improved.

The invention relates to the technical field of functional textile materials, and discloses a sunscreen fabric with a high ultraviolet protection effect and a preparation method thereof.The fabric is prepared from matrix fibers, polyvinyl alcohol, nano inorganic particles, a silane coupling agent and a cross-linking agent; the preparation method comprises the steps of silanization activation pretreatment of matrix fibers, electrostatic spinning coating of a polyvinyl alcohol and nanoparticle composite spinning solution, high-temperature thermal induction chemical anchoring crosslinking and weaving. According to the preparation method, a compact discontinuous nano shielding network is constructed on the surface of a single fiber by utilizing an electrostatic spinning technology, and stable covalent bond combination of a functional layer and a matrix fiber is realized through an epoxy group ring-opening reaction of a silane coupling agent. According to the fabric, efficient ultraviolet protection is achieved, meanwhile, breathable micropores of the fabric are completely reserved, the problems that a traditional coating sunscreen fabric is poor in breathability, stiff in hand feeling and low in washing fastness are effectively solved, and intelligent heat and humidity adjustment can be achieved by introducing temperature-sensitive polyurethane filaments.

A basketball net includes a multi-layer string including each of an outer layer formed of a first antibacterial, moisture-wicking fiber and an inner layer including a second antibacterial, moisture-wicking fiber. The outer layer is woven from a first antibacterial, moisture wicking yarn to form a wall defining a central opening, and at least one string is positioned within the central opening, the at least one string being formed from a second antibacterial, moisture wicking yarn. The at least one string includes a plurality of strings including a first string formed from the second antibacterial, moisture-wicking yarn and a second string including a third antibacterial, moisture-wicking yarn. The plurality of strings include: the first string; said second string comprising said third antimicrobial, moisture-wicking yarn and at least one monofilament yarn; and a third string formed of a plurality of single fiber yarns.

The present invention provides amorphous epoxy fibers with excellent dimensional stability, a fiber structure at least partially comprising such fibers, and a molded article obtained by melting such fibers. The amorphous epoxy fibers have a birefringence value of 0.005 or less. For example, the amorphous epoxy fibers may comprise an amorphous epoxy resin represented by the following general formula. Furthermore, the average fiber diameter of a single fiber of the amorphous epoxy fibers may be 40 μm or less. (Wherein, X is a dihydric phenol residue and n is 20 or greater)#imgabs0#

The application relates to the technical field of non-woven material preparation, in particular to a preparation process of a high-liquid-absorption spunlace non-woven mask base cloth material, which comprises the following steps: S1. selecting high-liquid-absorption viscose fibers as main raw materials and mixing functional fibers; S2. mixing the high-liquid-absorption viscose fibers and the functional fibers in proportion, carding the mixed fibers into single fiber state through a carding process, and cross-laying to form a fiber web; S3. forming a unique fiber distribution structure through a multi-stage spunlace process, and applying ultrasonic vibration in the spunlace process; and S4. performing hydrophilic treatment on the base cloth after spunlace. By adding hydrophilic nanoparticles in viscose spinning liquid and adopting a dry-wet spinning process, high-liquid-absorption viscose fibers with a multi-leaf structure are prepared, the specific surface area is increased, the liquid absorption capacity of the mask base cloth is further improved, the mask base cloth can fully absorb and carry essence liquid, and the demand of consumers for the skin care effect of the mask is met.

A filter substrate and adhesive filter rod manufacturing process having a plurality of connected adhesive regions or adhesive mechanisms throughout the filter substrate or other biodegradable material (single or multi-fiber), which can improve substrate performance regardless of whether the paper / substrate is curled, embossed, or not, and can be used as a filter rod. Including mechanical strength, filtration capacity for vapor / gas and particulate / solid phases, tar, nicotine and in particular carbon monoxide, sensory neutrality, visual improvement before and after use, and processability of the substrate.

To provide a carbon fiber bundle and a method for manufacturing a carbon fiber bundle that can exhibit high strength without reducing the elastic modulus, even when the diameter of the single fiber is increased. [Solution] A carbon fiber bundle in which multiple carbon fiber single fibers are bundled together, wherein the diameter of the single fibers is 6.5 μm or more and 8.5 μm or less, the strand strength is 4.5 GPa or more, and the strand modulus is 310 GPa or more, or a carbon fiber bundle in which multiple carbon fiber single fibers are bundled together, wherein the diameter of the single fibers is 6.5 μm or more and 8.5 μm or less, the strand strength is 4.5 GPa or more, and the product of the diameter of the single fiber and the strand strength is 31 or more.

The utility model relates to the field of continuous production of large-tow carbon fibers, and discloses an oiling device for large-tow precursors. The device comprises a first oiling groove and a second oiling groove, the first oiling groove is filled with an oiling agent, so that the large-tow precursor is immersed in the oiling agent of the first oiling groove for first oiling, the second oiling groove is provided with a spray head, and the large-tow precursor subjected to first oiling is sprayed out of the oiling agent at intervals through the spray head for second oiling. After the oiling device provided by the utility model is used for oiling the large-tow protofilament, the large-tow protofilament is laid, folded and boxed, and when the large-tow protofilament is unwound and led to an oxidation furnace, the oil content difference between the flat section protofilament and the folded and bent section protofilament unwound from the box is within 0.1%, the folded and bent section protofilament does not generate single fiber adhesion and is easy to separate, and the large-tow protofilament is not easy to deform. The broken filament amount of the carbon fibers is reduced, the strength of the carbon fibers is improved, and the carbon fibers are soft in hand feeling and not hard or brittle.

The present invention provides a carbon fiber, which has excellent tensile strength by having fewer internal defects while being a thick fiber having a single-fiber diameter of 6.0 μm or greater, and can provide the effects of reducing costs while increasing production amount to enhance the yieldability of the carbon fiber.

The present application provides a kind of composite textile filament for fiber reinforced thermoplastic plastic when manufacturing FRP, the formed body that can obtain sufficient inhibition of the orientation disorder of continuous reinforcing fiber, further, the thermoplastic resin that melts is easily penetrated in the single fiber between the continuous reinforcing fiber constituting the core when manufacturing formed body, good formability, the strength of the obtained formed body is high.A kind of composite textile filament for fiber reinforced thermoplastic plastic, characterized in that, on the substantially untwisted fiber bundle formed by at least containing the core (A) of continuous reinforcing fiber (a1) and the sheath (B) formed by thermoplastic short fiber, textile filament (C) is wound by thermoplastic short fiber.

The present disclosure provides a kind of nanofiber thermal conductivity measuring device, the measuring device includes: middle hollow base, first and second side wall are formed around the hollow place and oppositely arranged third and fourth side wall;Two conductive electrodes are formed on the first and second side wall respectively;And support layer, adhesive layer and suspension electrode are sequentially stacked from bottom to top, the suspension electrode is supported on the first and second side wall by support layer, current is applied to the suspension electrode by two conductive electrodes to make it as hot end, the thermal resistance of suspension electrode is greater than the thermal resistance of the nanofiber to be measured, and the two ends of nanofiber are supported on the suspension electrode and the fourth side wall respectively.The suspension electrode in the present disclosure has the characteristics of long electrode length and small current flow area, so it has much greater thermal resistance than conventional single fiber measuring device, and can solve the problem of low signal-to-noise ratio in low thermal conductivity nanofiber thermal conductivity measurement.

A non-invasive, wearable, ambulatory device capable of cardiac defibrillation includes a smart garment to be worn by a patient. The device also includes a plurality of therapeutic electrodes configured to be removably attached to the garment. A plurality of polymer-based ECG sensing electrodes are configured to provide ECG signals based on skin electrical activity of the patient wearing the smart garment. Polymer-based ECG sensing electrodes are formed by applying a conductive polymer fluid to each of a plurality of base fibers to form a plurality of individually conductive polymer coated fibers. The base fibers are single fibers and / or multi-fibers. The plurality of individually conductive polymer coated fibers are assembled into the one or more plurality of polymer-based ECG sensing electrodes. A controller is configured to receive the ECG signals, determine at least one arrhythmia episode based on the received ECG signals, and to cause a defibrillation shock.

The present invention discloses a short-process spinning device and its application method, which relate to the field of spinning technology. The short-process spinning device includes a fiber-splitting mechanism and a fiber-cutting mechanism. The fiber-splitting mechanism is used to disperse the filament bundles being transported into a single fiber state through multiple combing to obtain parallel and straight fibers. The fiber-cutting mechanism is arranged at the rear side of the fiber-splitting mechanism and includes a cutter roller and a conveying curtain. The cutter roller is located on the upper side of the conveying curtain and includes a cylindrical roller and a spiral blade. The spiral blade is spirally arranged on the surface of the cylindrical roller. The spiral blade is used to obliquely cut the parallel and straight fibers continuously transported by the conveying curtain into short fibers in groups. The present invention achieves continuous slivering through technical innovations in fiber-splitting, fiber-cutting, and slivering. The slivers are uniform in thickness, have a certain cohesive force, and are parallel and straight. The short fibers can also be directly twisted into yarn without slivering.

A fiber-reinforced resin molding material comprising reinforcing fibers (A) and a thermoplastic resin (B), wherein the fiber-reinforced resin molding material contains 1 to 30 parts by weight of the reinforcing fibers (A) and 70 to 99 parts by weight of the thermoplastic resin (B) with respect to 100 parts by weight in total of (A) and (B), the reinforcing fibers (A) comprise reinforcing fibers (A-1) and bundled reinforcing fibers (A-2), the reinforcing fibers (A-1) have a length of 3 to 15 mm and are aligned in the longitudinal direction of the molding material, the length of the reinforcing fibers (A-1) is the same as the length in the longitudinal direction of the molding material, and the bundled reinforcing fibers (A-2) are configured from 10 or more single fibers having a length of 0.5 to 2.9 mm.

The invention discloses a single-fiber vector stress-strain sensor based on a process of coating and plating a solid and liquid double-metal layer on the surface of a spandex fiber, which comprises the spandex fiber as a matrix, a lower electrode layer deposited on the surface of the matrix, an upper electrode layer deposited on the lower electrode layer, and the matrix, the lower electrode layer and the lower electrode layer are packaged through a flexible packaging layer; the lower electrode layer is gold nanoparticles attached to the substrate, the upper electrode layer comprises a metal nickel-plated layer on the lower electrode layer and a liquid metal layer coated on the metal nickel-plated layer, and the flexible packaging layer is made of chitosan. According to the invention, the problem of irreversible conductivity degradation caused by repeated stretching of the existing sensor is solved. The invention further discloses a preparation method of the single-fiber vector stress-strain sensor based on the process of coating the surface of the spandex fiber with the solid and liquid double metal layers.

The invention relates to divisional applications of an FDY (Fully Drawn Yarn) oiling agent capable of directly oiling crude oil, a preparation method and a spinning device, wherein the application number of the FDY oiling agent is 202510866489.9. The invention provides a spinning device which comprises an oil guide device used for coating a plurality of single fibers or yarns formed by the single fibers with the FDY oil capable of being directly oiled by the crude oil. According to the oiling agent guiding device, the influence of the number of fibers on oiling uniformity is reduced by conducting structure optimization on the oiling agent guiding device, the situation of yarn breakage in production is further reduced, and the problem that the quality of a traditional antistatic agent is unstable due to humidity fluctuation is solved.

The invention provides a method and system for regenerating fibers from waste textiles, and relates to the technical field of textile equipment. The method comprises the following steps: firstly, slitting a waste textile raw material through a vertical crossing slitting unit to obtain a cloth piece with a preset size; then, auxiliary agent spraying and steam ageing treatment are carried out on the cloth pieces, so that cohesive force between fibers is reduced; then carrying out flexible pretreatment, gradually loosening a warp and weft yarn structure through a needling device, and carrying out preliminary opening; then, through the multi-stage opening and impurity removal step, the materials are converted into a single fiber state in combination with a material distribution mechanism; the fibers are atomized and humidified in the conveying or storage process so as to maintain the water content and the strength; then fully carding through a carding and fiber separating machine, and separating the single fibers into at least three types of long fibers, medium and short fibers and ultra-short fiber components according to the difference between the fiber length and aerodynamic characteristics; and finally, respectively collecting and packaging the fibers with different length components. According to the invention, high-valued cyclic utilization of the waste textiles is realized.

The invention relates to a single fiber original distribution characteristic-based carding fiber web three-dimensional modeling method, which comprises the following steps of: preparing a tracing fiber which is obviously different from a fibril in color, and blending the tracing fiber and the fibril to obtain a blended spinning fiber web; two-dimensional images of the blended spinning fiber web on different microscope focusing planes are obtained, the tracer fiber in each image is recognized, and two-dimensional coordinate points on the corresponding planes are obtained; combining each two-dimensional coordinate point and the height of the corresponding plane into a space coordinate point set to obtain three-dimensional point cloud data of the tracing fiber; according to the three-dimensional point cloud data, extracting a trunk feature point of the tracing fiber, and further fitting a continuous fiber center line; and constructing a single fiber model based on the fiber center line, and sequentially carrying out free falling motion on the single fiber model in a random order according to a set orientation to construct a fiber web three-dimensional model. According to the method, the carding fiber web model capable of accurately showing the original distribution characteristics of the single fibers can be efficiently constructed, and meanwhile, the modeling cost is reduced.

The application relates to a functional elastic colored point yarn of a composite structure and a production process thereof, which comprises a colored point yarn body, the colored point yarn body is combined by colored point roving and spun yarn blending, triangular bright polyester fiber is used as the colored point, the colored point is bright and shiny, the elastic core-spun yarn and the Selovier yarn have two yarn structures, the proportion of spandex is relatively high, the yarn has good elasticity, with the contraction of the elastic yarn, the covered filaments are accumulated on the yarn surface to form an effect similar to that of the covered yarn, the single-fiber fineness of the polyester filaments is soft and delicate, has good silky touch, increases the yarn strength and the wear resistance of the yarn, is suitable for the development of sports, yoga and other fabrics, has a unique style, the application has the effects of elastic covering and star point-like gorgeous effect of the cloth surface.