2246 results about "Weft yarn" patented technology

The invention belongs to the technical field of flexible circuits, and discloses an integrally formed multilayer flexible fabric circuit which comprises a main circuit I, a branch circuit I, a main circuit II and a branch circuit II according to functional layout classification, the main circuit I is connected with the branch circuit I, the main circuit II is connected with the branch circuit II, the main circuit I is not connected with the main circuit II, and the branch circuit II is connected with the branch circuit II. The branch circuit I is not connected with the branch circuit II; the main circuit I and the main circuit II define a [-shaped area, and the branch circuit I and the branch circuit II are both located in the area. According to composition and structure classification, the warp knitting fabric comprises an insulating warp knitting fabric, and a single conductive yarn a, a single conductive yarn b and a plurality of conductive yarns X which are simultaneously positioned inside the insulating warp knitting fabric; the conductive yarn a and the conductive yarn b are respectively weft yarns which are lined into the insulated warp knitting fabric from the left side and the right side. The fabric has the advantages of light weight, softness and breathability, is good in ductility, is integrally formed during weaving, and keeps the structural integrity and the yarn continuity.

The invention relates to a control system for a water-jet loom. A data acquisition module acquires and transmits weft tension, humidity and temperature data in real time. The parameter calculation module calculates the optimal parameters of the water spraying time, the water pressure and the nozzle opening degree through a fuzzy control algorithm according to data changes and transmits the optimal parameters to a water spraying execution mechanism. The tension adjusting module adjusts the nozzle opening degree and the water spraying time according to the comparison result of the weft yarn tension and the preset threshold value. The nozzle optimization module optimizes the nozzle design by means of a computational fluid dynamics approach. The pressure adjusting module monitors pipeline pressure through a pressure sensor, and alarms and adjusts the rotating speed of a water pump and the opening degree of an electromagnetic valve if the pipeline pressure exceeds a threshold value. The state detection module monitors knitting needles and shuttles through the machine vision technology, and water spraying parameters are adjusted when abnormity occurs. The data processing module uploads data to a cloud platform, and big data and machine learning are utilized to optimize a control strategy so as to realize real-time monitoring and accurate control of various parameters of the water-jet loom and guarantee weaving quality and efficiency.

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.

Binding warps have first and second binding warps arranged vertically in a pair and a third binding warp forming knuckles passing above upper surface side wefts. Upper surface side warps include an upper surface side collapsing yarn forming a pair with the third binding warp. The upper surface side collapsing yarn passes below the wefts and collapses a part of the upper surface side obverse surface texture at a position where the third binding warp forms knuckles on the wefts. The pair formed by the first and second binding warps complement each other while the pair formed by the third binding warp and the upper surface side collapsing yarn complement each other. Thereby, the pair formed by the first and second binding warps and the pair formed by the third binding warp and the upper surface side collapsing yarn form the same weaving pattern for the wefts in a weave repeat.

The invention provides a visual detection method based on fabric physical structure simulation. The visual detection method based on fabric physical structure simulation comprises the following steps: a, fabric physical modeling: establishing a physical structure model of a fabric, wherein the physical structure model is woven structure characteristics, warp and weft material characteristics and warp and weft arrangement modes; b, light source automatic calibration: detecting the angle and the intensity of a light source in real time by using a sensor; the irradiation angle and brightness of the light source are dynamically adjusted through the calibration model so as to eliminate the influence of the light source change on the detection. According to the visual detection method based on the fabric physical structure simulation, the influence of the light angle and intensity change on the detection precision in the prior art is innovatively solved. Through multi-angle light source control and an illumination compensation algorithm, the angle and the intensity of the light source are detected and calibrated in real time by using a sensor, so that the surface of the fabric can present consistent detection effects under different illumination conditions.

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 fabric and shoes, the fabric at least comprises a first knitting area and a second knitting area, the first knitting area is formed by interweaving warp yarns and weft yarns according to weft backed weave, and the second knitting area is formed by interweaving warp yarns and weft yarns according to single-layer change warp rip weave; the weft yarns of the surface-layer texture of the first weaving area are surface-layer weft yarns, the weft yarns of the inner-layer texture of the first weaving area are inner-layer weft yarns, and the shrinkage rate of the surface-layer weft yarns is smaller than that of the inner-layer weft yarns. The shrinkage rate of the surface weft yarns of the weft backed weave is smaller than that of the lining weft yarns, and due to the fact that the shrinkage rate of the surface weft yarns is low and the shrinkage rate of the lining weft yarns is high, the shrinkage rate of the lining weft yarns is large and the shrinkage rate of the surface weft yarns is small after the fabric is subjected to high-temperature setting, so that the surface weft yarns are longer than the lining weft yarns and are forced to bow up; after the weft yarns on the surface layer protrude, the fabric shows a three-dimensional effect.

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 discloses a weaving process of a single-guide woven fabric, which comprises a fabric weaving process, and the fabric weaving process comprises the following steps: arranging first weft yarns and second weft yarns on the same horizontal plane, and respectively interweaving the first weft yarns and the second weft yarns with warp yarns; the first weft yarns and the warp yarns are hydrophilic yarns; the second weft yarns are hydrophobic yarns; the second weft yarns and the warp yarns are interwoven at intervals to form floating threads below the warp yarns; the interweaving points of the first weft yarns and the warp yarns on the peripheries of the floating threads are larger than those of the second weft yarns and the warp yarns, so that the floating threads are extruded to protrude on the back surface of the fabric to form protruding areas; by the adoption of the technical scheme, a tighter and more stable fabric structure can be formed, the quality problem caused by the loose texture of the single-guide woven fabric is reduced, and the product quality is improved.

The invention relates to the technical field of heaters, in particular to a layered fabric heating battery cell, heating battery cell manufacturing equipment and a control system thereof.The layered fabric heating battery cell comprises warp yarn and weft yarn which are composed of conductive composite fibers, and the warp yarn and the weft yarn are woven into the layered fabric heating battery cell through a loom; the conductive composite fiber is prepared from a conductive material and a fiber matrix material in a laminating manner; according to the layered fabric heating cell provided by the invention, through uniform weaving of the flexible conductive composite fibers, heat is uniformly distributed in the fabric, the problem of local overheating or supercooling is avoided, and due to the fact that the resistance of the conductive composite fibers is relatively low, the electric energy consumption required by heating is reduced.

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.

The invention relates to the technical field of power cables, in particular to an insulation protection tube which comprises a wire tube, and the outer wall of the wire tube is wrapped with a braided layer braided and wound by heterogenous aramid fibers, namely a heterogenous aramid braided layer; the heterogenous aramid fiber braid layer is also wrapped with a braid layer woven and wound by carbon fibers, and the braid layer is called as a carbon fiber braid layer; curing the wire tube wrapped with the anisotropic aramid fiber braid layer and the carbon fiber braid layer; the outside of the carbon fiber braid layer is coated with fixing glue; fixing glue with a polydimethylsiloxane component is adopted as the fixing glue; the fixing glue is doped with a fragment-shaped glass fiber net, and the fragment-shaped glass fiber net is used as a filler; the glass fiber net comprises a net body and expanded glass fibers; the net body is formed by weaving warp yarns and weft yarns; the warps and the wefts are made of glass fibers; the pressure resistance, corrosion resistance, wear resistance and insulation performance of the pipe are improved, and ultraviolet ray irradiation can be blocked.

The invention discloses high-density ultra-thin electronic-grade glass fiber cloth, and relates to the technical field of glass fiber cloth preparation, the high-density ultra-thin electronic-grade glass fiber cloth is formed by weaving warp yarns and weft yarns with the monofilament diameter of 4.0 microns, the warp and weft density is 90-100 pieces / inch, an air jet loom is combined with an auxiliary air jet mechanism for plain weaving, and it is guaranteed that fibers are tightly arranged; the preparation method comprises the steps of low-speed warping, weaving, desizing, deep splitting, cleaning and surface treatment. During weaving, through low-tension control and low-pressure airflow assistance, the fabric structure is more compact and uniform; a three-step method is adopted to gradually eliminate most slurry, and the slurry is further removed through liquefaction desizing; splitting and cleaning adopt a water flow and air flow combined mode, so that fiber opening is ensured, and the slurry residue rate is reduced to the minimum; finally, the strength of the high-density ultrathin electronic-grade glass fiber cloth is improved through treatment of a silane coupling agent; and low-tension and extremely low-slurry-residue-rate weaving of the high-density ultrathin electronic-grade glass fiber cloth is realized.

The invention relates to the technical field of cool fabric preparation, in particular to a waterproof and sun-proof twill tatting superfine cool fabric and a preparation process, the waterproof and sun-proof twill tatting superfine cool fabric is composed of a warp and weft twill tatting blank, a waterproof coating covering the blank, and a cool finishing agent sprayed and shaped on the surface of the waterproof coating; through coating of the waterproof agent and the cross-linking agent and special drying treatment, the fabric has excellent waterproof performance, and water permeation is effectively blocked; in the preparation process of the fabric, sun protection is provided through padding treatment, and the passing rate of ultraviolet rays is reduced; the twill tatting structure is combined with specific drying, baking and calendaring treatment, so that the structural stability and wear resistance of the fabric are enhanced, and the air permeability of the fabric is ensured while the waterproof effect of the fabric is not influenced; due to the use of the cool-feeling finishing agent and the fine shaping treatment, the soft and comfortable hand feeling of the fabric is ensured, and the fabric can have a good temperature adjusting effect.

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 belongs to the technical field of mechanical simulation and prediction of woven fabrics, and particularly discloses a modeling method and system of a hyperelastic model for simulating wrinkles of a two-dimensional woven fabric, and the method comprises the steps: building the hyperelastic model which comprehensively considers mechanical behaviors of the two-dimensional woven fabric, and the two-dimensional woven fabric is formed by overlapping and weaving warp yarns and weft yarns; determining a numerical value implementation method of the hyperelastic model in the finite element framework, wherein the numerical value implementation method is implemented through a subprogram interface; simulating a wrinkle defect generated in the deformation process of the two-dimensional woven fabric by adopting a finite element framework through a numerical value implementation method of the hyperelastic model; wherein the hyperelastic model is established by defining strain invariants of tensile deformation, shear deformation and bending deformation of the two-dimensional woven fabric, obtaining a corresponding strain energy function based on the strain invariants, and calculating membrane stress and bending moment based on the strain energy function. According to the invention, the wrinkle defect generated in the deformation process of the two-dimensional woven fabric can be accurately simulated.

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.

The invention provides a metal wire mesh forming method, and relates to the field of metal wire mesh processing. Metal wires are cleaned and divided into a plurality of horizontal groups at equal intervals, first warp wires and second warp wires are distributed in a staggered mode in the horizontal direction, the warp wires are bent upwards by one unit through a bending mechanism and bent laterally by one unit, the bending speed of the first warp wires is higher than that of the second warp wires by one unit, and the bending speed of the first warp wires is higher than that of the second warp wires by one unit. And the weft yarns are bent upwards by one unit from the warp yarns by a rapier to penetrate through the warp yarns. According to the metal wire mesh forming method, the adjacent warp wires are bent upwards by one unit, so that the continuously staggered upwards-bent units are formed, the weft wires can be conveniently placed in the upwards-bent units through a rapier, and transverse movement of the weft wires is limited by the fact that the weft wires form protrusions between the adjacent warp wires; and the upward bending unit is flattened through the extrusion mechanism, so that the continuous metal wire mesh can be formed, and the connection position is easy to slip and is suitable for extrusion forming.

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.