1847 results about "Weft yarn" patented technology

The invention relates to the technical field of antibacterial and antifouling fabrics, provides a preparation method of an antibacterial and antifouling fabric, and solves the problem of poor fabric durability caused by single functional component and lack of physical protection in the prior art. The preparation method comprises the following steps: S1, preparing MOFs loaded antibacterial fibers: blending a metal organic framework antibacterial composite nanomaterial and a polymer matrix material, and carrying out melt spinning to prepare the MOFs loaded antibacterial fibers; s2, constructing a self-cleaning functional coating: dispersing the fluorinated nanoparticles and a polymer adhesive in a solvent to prepare a self-cleaning coating solution; s2, performing surface activation treatment on the MOFs-loaded antibacterial fiber obtained in the step S1, soaking the MOFs-loaded antibacterial fiber in the self-cleaning coating liquid, and performing pulling and curing to form a bionic micro-nano structure coating on the surface of the MOFs-loaded antibacterial fiber so as to obtain a functional composite fiber; s3, spinning forming: taking the functional composite fibers obtained in the step S2 as warp yarns and / or weft yarns, and weaving to obtain the antibacterial and antifouling fabric.

Embodiments described herein generally relate to textile structures comprising core spun yarns, and associated methods for manufacturing. One example embodiment is a textile structure including one or more layers of warp yarns interwoven with one or more layers of weft yarns, wherein at least one of the one or more layers of warp yarns and one or more layers of weft yarns include one or more core spun yarns.

A geotextile fabric includes a first weft yarn woven in a weft direction and a first warp yarn and a second warp yarn woven in a warp direction, the first warp yarn being a wicking yarn, and the second warp yarn being a wicking yarn or a non-wicking yarn, the first warp yarn forming a first loop that is woven through and extends from a first face of the woven geosynthetic fabric and across at least two of the first weft yarns to form a first gap between the first loop and first the face of the woven geosynthetic fabric.

The invention relates to the technical field of heald frame self-adaptive control, and discloses a spinning heald frame self-adaptive control system and method.The spinning heald frame self-adaptive control system comprises a sensor set used for collecting heald frame displacement, yarn tension and fabric surface state data in real time and generating heald frame state data, and the input end of a defect detection module is connected with the sensor set; receiving the checked yarn tension and fabric surface state data, performing defect detection on the fabric surface state data, generating a suppression signal for abrupt change of heald frame acceleration according to correlation analysis of a fabric state rating signal and real-time displacement, dynamically deciding and receiving a defect identification result, querying a defect type mapping table, and determining whether the defect type mapping table is abnormal or not. According to the method, a control parameter forced priority sequence is determined, weft errors and tension changes on the surface of the fabric are judged, self-adaptive adjustment of the spinning heald frame through weaving state detection is achieved, and weaving accuracy is improved.

The invention relates to the related technical field of warm-keeping fabrics, in particular to a hollow warm-keeping yarn fabric which is formed by weaving hollow fibers in a staggered plaid structure, the staggered plaid structure is formed by interweaving warp yarns and weft yarns in a spiral winding mode, and micro air chambers are formed at the interweaving points of the warp yarns and the weft yarns. The hollow fiber comprises a core layer and a sheath layer, the core layer is of a plum blossom petal-shaped multi-cavity structure formed by ultra-high molecular weight polyethylene, cavities are separated through radial connecting bridges, and the sheath layer sequentially comprises a heat conduction enhancing layer, an infrared reflecting layer and a dynamic temperature adjusting layer from inside to outside. Dynamic heat and humidity collaborative management, intelligent temperature response, radiation heat management and structural stability are effectively improved, the heat retention property and moisture permeability of the fabric are improved, self-adaptive adjustment can be achieved according to the body temperature of the human body, the heat radiation transmission efficiency is enhanced, the super-hydrophobic interface modification and covalent bonding technology is adopted, and the thermal radiation performance of the fabric is improved. And the functional layer can still keep high bonding strength after being washed repeatedly.

The utility model discloses a double-layer twisted hole fabric and a vamp, and relates to the technical field of doup heald fabrics. The double-layer reamed fabric comprises a fabric body, the fabric body is divided into a surface layer and a bottom layer, a separated reamed layer is arranged in any local area of the surface layer and the bottom layer, the two reamed layers form a double-layer structure, a plurality of reamed holes are formed in each reamed layer, a hollowed-out through hole structure is formed in each reamed layer through a hollowed-out leno weave, and the structures of the two reamed layers are the same or different. Reamed holes overlapped with the other layer body are displayed from one side of the surface layer or the bottom layer through the hollowed-out through hole structure. According to the double-layer reamed fabric disclosed by the utility model, the textures with the same or different reamed hole shapes on two sides are realized by part of the warp yarns and the surface layer weft yarns as well as part of the warp yarns and the bottom layer weft yarns through a leno weave process of reeled brown, and the structural style formed by overlapping the two reamed hole layers can be seen from any side of the surface layer and the bottom layer.

A terry fabric includes a first side configured to exhibit absorbency capabilities and a second side configured to exhibit cooling capabilities. The first side can include a spun fiber loop including a plurality of pile warp yarn, and the second side can include a plurality of weft yarn and a plurality of ground warp yarn, wherein at least one of the plurality of weft yarn and the plurality of ground warp yarn includes synthetic filament yarn.

The invention relates to a seatbelt webbing (10) for a seatbelt system of a motor vehicle, comprising a woven fabric of warp threads (11) and weft threads (12), where the woven fabric comprises a primary color in one or more base portions (13). The seat belt webbing includes at least one stripe having a different color and extending parallel to the warp yarns. Transition stripes are arranged at transitions from the base portion to the stripes, wherein the warp yarns of the base portion and stripes include base yarn counts. The transition stripe includes at least two warp yarns having a transition yarn count that is finer than the base yarn count.

To provide a synthetic resin canvas (and a method for producing the same) having cotton canvas appearance, stable in balance of warp and weft dimensions, and hardly causing dimensional change.SOLUTION: A synthetic-resin canvas having a mass of 360 to 800g / m2, the synthetic-resin canvas being obtained by providing a soft vinyl chloride-resin-impregnated coating layer on an entire surface of a fabric, wherein the fabric is a plain weave fabric, a twill weave fabric, or a satin weave fabric, and a 10% tensile stress in a widthwise direction of the synthetic-resin canvas is 90 to 110% of a 10% tensile stress in a processing direction. Especially, the fabric is composed of a short fiber spun yarn, a combination of a short fiber spun yarn and a long fiber multifilament bulky yarn, or a long fiber multifilament bulky yarn, and the difference between the total fineness per inch (dtex / inch) of the weft yarn group and the total fineness per inch (dtex / inch) of the warp yarn group is within ± 10%.SELECTED DRAWING: None

The invention provides a ribbon loom driven by horizontally opposed crankshafts, which comprises a base rack provided with a crankcase, a crankshaft driving assembly is arranged in the crankcase and drives a heald frame opening mechanism through a connecting rod, and a cloth tape winding mechanism, a weaving mechanism and a weft yarn feeding mechanism are further arranged above the crankcase. The crankshaft driving assembly comprises a rear crankshaft set and a front crankshaft set which are horizontally and oppositely arranged, a first synchronous wheel and a second synchronous wheel in the rear crankshaft set are connected through a rear main shaft piece, and a driving belt wheel is installed on a motor piece and connected with the first synchronous wheel through a first synchronous belt. The front crankshaft set and the rear crankshaft set are driven to rotate synchronously, all heald frame openings in the heald frame opening mechanism operate synchronously according to the preset opening rhythm, openings are formed through the heald frame set, the openings reach the weaving mechanism to be woven into cloth belts, and then the cloth belts are wound into a container through the winding mechanism. The vibration and noise of the machine are reduced, and the overall processing efficiency of the ribbon loom is improved.

An industrial fabric 100 is an industrial fabric in which an upper surface side fabric composed of upper surface side warps and upper surface side wefts and a lower surface side fabric composed of lower surface side warps and lower surface side wefts are bound to each other, wherein an upper surface side warp 1Ub functions as an upper surface side binding yarn binding the upper surface side fabric and the lower surface side fabric, and a lower surface side warp 2Lb functions as a lower surface side binding yarn binding the upper surface side fabric and the lower surface side fabric. The number of knuckles formed by the upper surface side warp 1Ub in the upper surface side fabric is larger than the number of knuckles formed by the lower surface side warp 2Lb in the upper surface side fabric.

The invention discloses a spandex-free elastic woven fabric and a preparation method thereof.The preparation method comprises the steps that on a material layer, graphene / nano-silicon dioxide modified PBT / PTT composite fibers are adopted as warp yarn, and a spring-damping elastic structure is constructed; the surface warp yarns are made of carbon nano tube coated superfine denier chinlon, so that the surface friction is reduced; the weft yarns are Yacell / PTT (polytrimethylene terephthalate) double-component core-spun yarns, so that the transverse elasticity and the moisture absorption and conduction functions are coordinated; in the process level, precise weaving is achieved through an AI tension control system and a magnetic suspension weft insertion technology, and the stress distribution of the fabric better conforms to the human motion law in combination with a digital twinning optimization bionic sine wave structure; the fiber damage is avoided by adopting a supercritical CO2 anhydrous dyeing and finishing technology; and finally, the conductivity and the wear resistance are improved through graphene nanosheet padding treatment. According to the invention, integration of high elasticity, high durability and intelligent response is realized.

The invention provides a preparation method of a bionic double-layer aerogel thermal fabric, which comprises the following steps: S1, weaving a double-layer texture fabric, selecting superfine polyester as warp yarns and aerogel modified polyester and spandex as weft yarns in a surface texture, and selecting modal fibers as warp yarns and weft yarns in a lining texture; s2, performing low-temperature oxygen plasma treatment on one side of the inner texture of the double-layer texture fabric; s3, soaking the fabric subjected to plasma treatment in a finishing liquid containing cellulase for finishing; s4, after drying the finished fabric, soaking the fabric in a mixed finishing liquid containing protease / lipase for finishing to obtain a protease / lipase finished fabric; and S5, coating one side of the inner tissue of the fabric subjected to protease / lipase finishing with the salt-containing chitosan / waterborne polyurethane finishing liquid, drying, and washing to dissolve out salt, so as to obtain the warm-keeping fabric. According to the invention, material modification and structural design are combined, so that high-efficiency thermal insulation performance is realized.

The utility model relates to a crochet woven belt. The crochet woven belt comprises warp yarns, bottom-layer weft insertion yarns, middle-layer weft insertion yarns and surface-layer weft insertion yarns. The bottom-layer weft insertion yarns and the surface-layer weft insertion yarns are interwoven with the warp yarns; the middle-layer weft insertion yarns are arranged on the bottom-layer weft insertion yarns and are a plurality of straight yarns which are not interwoven with the warp yarns. The surface-layer weft insertion yarns are arranged on the sides, away from the bottom-layer weft insertion yarns, of the middle-layer weft insertion yarns and partially cover the middle-layer weft insertion yarns. The crochet woven belt is provided with the warp yarns and the bottom layer weft insertion yarns which are interwoven, and is provided with the middle layer weft insertion yarns which are not interwoven with the warp yarns, so that patterns which are not influenced by colors of the warp yarns are presented on the surface of the woven belt; and the surface layer weft insertion yarns partially covering the middle layer weft insertion yarns are arranged, so that the surface of the braid presents a stereoscopic pattern. The crochet woven belt can present patterns with stereoscopic impression, the weaving process is simpler and more convenient than tatting, materials are few, the cost is low, and the whole woven belt is light, attractive in appearance and suitable for being used as a decoration strip of clothes.

The intelligent cashmere jacquard weaving method comprises the following steps: step 1, selecting, matching and pretreating raw materials; step 2, setting a blending ratio; step 3, spinning by adopting a spinning machine: controlling spinning parameters during spinning, collecting data in a spinning process in real time and monitoring the quality of each yarn; 4, intelligent double-faced jacquard weaving; 5, binding weave treatment: forming a dotted structure at binding points by adopting the same-color weft yarns, and enabling the density of the binding points to be reached through algorithm optimization; 6, after-finishing the cashmere fabric, wherein the after-finishing comprises fulling optimization and microwave shaping; and 7, detecting the quality of the cashmere fabric: detecting the quality of the cashmere fabric by adopting machine vision detection and physical property test. The technical problems of limited material performance, insufficient spinning precision, complex jacquard process and low after-finishing efficiency in traditional cashmere scarf production are solved.

A weft yarn for an artificial ligament (1), a weft yarn preparation method, and an artificial ligament (1). The artificial ligament (1) is of a round rod structure; a first woven part (102), an in-joint free filament part (103), and a second woven part (104) which are sequentially connected are formed in the round rod structure in the axial direction thereof; the in-joint free filament part (103) comprises a plurality of weft yarns (201), and the weft yarns (201) extend in the axial direction of the round rod structure; and each weft yarn (201) has a fineness of 1000 D-3000 D / 1-100 F, and a mechanical strength of 75-300 N. By increasing the mechanical strength of a single yarn formed in the in-joint free filament part (103) of the artificial ligament (1), the number of yarns in the in-joint free filament part (103) is decreased. The present invention can eliminate a knee joint synovial membrane inflammatory response caused by chippings of the artificial ligament (1) in the reconstruction process of the artificial ligament (1), reduce the degree of contact adhesion between the in-joint free filament part (103) and the tissue, reduce the probability of adhesion, and solve the clinical problems of the inflammatory response and the prolonged surgery time which are caused by difficult removal due to adhesion of the free filaments and the tissue in the revision surgery.

The invention belongs to the technical field of textile detection, and discloses an intelligent woven fabric density detection method and system based on multispectral imaging, and the method comprises the steps: collecting multispectral fabric images through a multispectral imaging device, and carrying out the noise reduction and texture contrast enhancement processing of the multispectral fabric images in sequence through the combination of an image processing technology, obtaining a fabric enhanced image; constructing a deep convolutional network classifier to classify the fabric texture, and segmenting a yarn region in the fabric enhanced image based on a fabric texture classification result to obtain a segmented yarn binary mask image; and inputting the yarn arrangement direction into a sub-pixel density calculation model, and calculating a yarn density value through the sub-pixel density calculation model. In the yarn breakage repairing stage, the broken yarn is repaired according to the initial warp and weft direction meeting the orthogonal constraint, and the calculation precision of the yarn arrangement direction is effectively improved.

The invention relates to the technical field of textile weaving, and discloses a multi-layer composite weaving method for worsted wool fabric, which comprises the following steps: preparing plush warp yarns, composite weft yarns and shaping warp yarns which are formed by blending various fibers; sequentially carrying out dyeing and sizing treatment on the yarns; a weaving machine is transformed to meet the multi-layer composite weaving requirement; applying the transformed weaving machine to implement multi-layer composite weaving, including warping, drafting and reed passing and weaving, and controlling corresponding process parameters; and carrying out on-line detection in the weaving process and quality detection on the woven gray fabric. The plush warp yarn, the composite weft yarn and the shaped warp yarn are formed by blending various fibers, the yarn performance is enriched, the plush warp yarn has the warm-keeping and soft characteristics, the composite weft yarn has the antibacterial and health-care functions, microorganism breeding is inhibited, the warm-keeping performance is improved, and human body microcirculation is promoted, and the shaped warp yarn enhances the strength and stiff and smooth degree. The overall quality of the worsted wool fabric is improved, and the market diversification requirements are met. The problem of performance limitation of a single fiber is solved.

The invention discloses glass cloth, prepreg and a printed circuit board. [Problem] To provide a glass cloth capable of achieving a prepreg and a printed wiring board having excellent dimensional stability and capable of suppressing the occurrence of pinholes in the prepreg. [Solution] The glass cloth contains glass yarns as warp yarns and weft yarns, the weaving density of the warp yarns and the weft yarns is 50-110 / 25 mm, the thickness of the glass cloth is 20 [mu] m or less, and the average gap intervals in the weft yarn direction and the warp yarn direction in which meshes are formed are 162-240 [mu] m and 65-200 [mu] m, respectively.

The utility model discloses a breathable cool anti-UV fabric, which is formed by weaving warp yarns and weft yarns according to a one-up one-down plain weave, each cycle of the warp yarns contains 2-3 hollow reeds, the warp yarns comprise inner-layer yarns and outer-layer yarns, the outer-layer yarns are chinlon delustering yarns, the inner-layer yarns are spandex yarns, the weft yarns comprise first weft yarns and second weft yarns, and the first weft yarns and the second weft yarns are interwoven. The first weft yarn is the same as the warp yarn, the second weft yarn is alkali-soluble yarn, and in each cycle of the weft yarn, the yarn ratio of the first weft yarn to the second weft yarn is (15-18): (1-2). When the fabric passes through alkali liquor, the alkali-soluble yarns in the weft yarns are dissolved, so that the alkali-soluble yarns and vertical blanks formed by the hollow reeds in the warp direction form holes at nodes, the proportion of the alkali-soluble yarns is not more than 10%, and the use amount of the alkali-soluble yarns is small, so that the use amount of strong alkali is correspondingly reduced, environmental pollution caused by excessive use of the strong alkali is avoided, and meanwhile, serious beard edges and fuzzing balls at the holes are avoided. The fabric disclosed by the utility model can integrate the effects of ventilation, cool feeling, elasticity and UV resistance into a whole.

The disclosed fan blade is composed at least in part of a structure (50) made of composite material comprising a fiber reinforcement and a matrix. The fiber reinforcement includes a plurality of plies that are each formed of warp yarns and weft yarns. The warp yarns and weft yarns include incomplete yarns that each have a terminal end on the pressure side (40) or the suction side. The pressure side (40) and the suction side each have at least one ply drop line (80, 81) connecting the terminal ends of the incomplete yarns of the same ply. At least one ply drop line (81) has an end portion (96) that extends from the blade tip up to 90% of the blade height. Said end portion (96) extends generally along a direction of extent (E) forming an angle between 5° and 85° with the local tangent of the warp yarns.

The utility model discloses a plain-color jacquard towel weave capable of embodying a heterochromatic three-dimensional effect, which is formed by weaving ground warps, wool warps and weft yarns, and the wool warps are circularly arranged according to the thread number proportion of 2: 1; the beating-up mode of four-weft fuzzing is adopted, wherein the first weft length beating-up mode is adopted, and the second weft, the third weft and the fourth weft half beating-up mode is adopted; a plurality of looped pile parts with different looped pile densities are formed on the front face and the back face of the towel weave respectively, and the looped pile parts with the different looped pile densities form the pattern of the towel weave; and the looped pile parts with different looped pile densities at least comprise three looped pile densities. According to the towel structure, only one color of wool warp two-side pile loops are adopted, the multi-weft pile structure is matched with a beating-up mode, the different-color effect of multiple colors with different shades can be achieved, and the 3D effect is achieved.

A method for manufacturing a wire damper of a loudspeaker with periodic span wires, including: arranging warp yarns and wire assemblies at intervals, which extend straightly and are parallel to each other; interweaving weft yarns with the warp yarns and the wire assemblies to weave a base material, each wire assembly periodically spans above and below the weft yarn assemblies, and an area where the weft yarn assemblies defined by at least two adjacent weft yarns are interwoven with each wire assembly is defined as a wire disposing area; impregnating the base material in a resin solution; drying the base material; thermoforming a wire damper on the base material; separating the wire damper from the base material. Therefore, the strength of the weft yarns fixing the wire assemblies can be reduced, thereby reducing the influence of the weft yarns on the wire assemblies, imparting the wire assemblies better elasticity.

The invention relates to the field of woven materials, in particular to a fiber hybrid woven composite material based on bionic multistage gradient design. The material is obtained through material gradient design, structure gradient design and interface gradient design. The material comprises a surface layer high-rigidity area, a transition area and a core high-toughness area, wherein the surface layer high-rigidity area adopts carbon fibers I as warp and weft yarns; in the transition area, basalt fibers I are adopted as weft yarns, carbon fibers II are adopted as warp yarns, and Z-direction yarns are aramid fibers I; warp yarns of the core high-toughness area are basalt fibers II, and weft yarns and Z-direction yarns of the core high-toughness area are aramid fibers II. The defects of stress concentration, insufficient interlayer toughness, interface slippage and the like existing in traditional plain / twill weaving are effectively overcome. According to the design, on the premise that the cost is kept controllable, the interlayer performance, the impact resistance and the energy absorption characteristic of the composite material are remarkably improved by optimizing the three-dimensional combination mode of the warp yarns, the weft yarns and the Z-direction yarns at each stage, and the synergistic enhancement of mechanical properties is achieved.

The invention relates to the technical field of medical instruments, in particular to an artificial ligament braided fabric. The artificial ligament braided fabric comprises a braided part, the braided part is formed by interweaving warp yarns and weft yarns, a mesh staggered structure is formed, the warp yarns extend in the width direction of the braided part, and the weft yarns extend in the length direction of the braided part. Compared with the prior art, by optimizing the weaving structure and the size design, the complex movement requirements of various joint parts such as the ankle joint and the acromioclavicular joint can be met, the stable fixing effect is provided, and the risks of loosening and shifting of the graft are reduced.

The utility model discloses a loop yarn woolen-like fabric which comprises a warp group and weft yarns, the warp group comprises first warp yarns, second warp yarns and third warp yarns, and the weft yarns are woven with the first warp yarns, the second warp yarns and the third warp yarns in an up-and-down and staggered mode; the first warp yarns are formed by twisting first polyester low stretch yarns of 140D-150D and 32 pure polyester slub yarns; the third warp yarns are formed by stranding and twisting 140 D to 150 D of third polyester low stretch yarns, 26 black loop yarns and 90 D to 100 D of imitated silk yarns; the weft yarn is formed by plying and twisting 140 D to 150 D cation low stretch yarn, 32 cation polyester yarn and 40 D to 50 D spandex. Warp weave points in a weave cycle are distributed, and pure polyester bunchy yarn and black loop yarn are utilized, so that the linen-like and wool-like effect can be achieved in touch and vision.

The invention discloses a nanofiber functional grading scaffold and a preparation method thereof. The preparation method comprises the following steps: step 1, respectively preparing a PLCL / silk fibroin spinning solution, a PLCL / silk fibroin / MDP1 spinning solution and a PLCL / silk fibroin / hydroxyapatite spinning solution; 2, processing the three spinning solutions into nanofiber yarns through electrostatic spinning; and step 3, by taking the PLCL / silk fibroin nanofiber yarns as warp yarns and taking the three kinds of nanofiber yarns as weft yarns in sequence, weaving on a machine to obtain the stent. In the nanofiber functional grading scaffold, polypeptide MDP1 is loaded in the nanofiber yarn for simulating a fibrous cartilage interface, so that the situation that the mechanical property of the whole structure is influenced by scar hyperplasia caused by excessive inflammation of a tendon-bone interface can be prevented; meanwhile, hydroxyapatite with an excellent osteogenesis promoting effect is loaded in the nanofiber yarn for simulating the bone interface, and the mechanical property of the tendon-bone interface is further enhanced.

The utility model relates to knitting-imitated jean fabric and clothes. The knitted-imitated jean fabric comprises warp yarns and weft yarns which are knitted in a staggered manner, the weave structure of the knitted-imitated jean fabric is a double-warp weave comprising a surface weave and an inner weave, the weave structure of the surface weave is at least one of a reinforced twill weave and a composite twill weave, and the weave structure of the inner weave is at least one of a plain weave and a rip weave; and in the tissue circulation of the surface tissue, the number of the warp tissue points is greater than or equal to 2. The knitted-imitated jean fabric can have better softness and comfort, yarn compactness and mechanical property at the same time.

The invention belongs to the technical field of high-performance protective textiles, and particularly relates to a high-temperature-resistant flame-retardant protective fabric and a preparation method thereof.The high-temperature-resistant flame-retardant protective fabric is composed of warp yarn and weft yarn, the warp yarn is formed by ceramic fiber yarn with the diameter of 15-25 micrometers and silicon carbide fiber wound and woven on the surface of the ceramic fiber yarn, and the weft yarn is formed by interweaving the silicon carbide fiber and the ceramic fiber yarn; the diameter of the silicon carbide fibers is 18 microns, the silicon carbide fibers and the ceramic fiber yarns form composite yarns, the weft yarns are blended yarns of aramid fibers and polyphenylene sulfide fibers, the proportion of the aramid fibers to the polyphenylene sulfide fibers is 6: 3: 1, and 5%-10% of flame-retardant viscose fibers are contained. Through composite treatment of the silane coupling agent and the nano silicon dioxide, the interfacial compatibility of the ceramic fiber and the organic fiber is effectively improved, when the fabric is stressed, the stress at the interface can be effectively transmitted, the fabric failure caused by interface debonding is avoided, and the overall mechanical property and durability of the fabric are remarkably enhanced.