37 results about "Electrically conducting yarn" patented technology

The invention discloses a conductive yarn and a preparation method thereof, relates to the technical field of functional textile materials and composite conductive fiber preparation, and can solve the problems that an existing conductive yarn is poor in flexibility, insufficient in durability, prone to oxidation failure and difficult to integrate multiple functional performances. The preparation method comprises the following steps that S1, PBO yarn is soaked in a dopamine solution, a PDA modification layer is formed on the surface of the PBO yarn through a polydopamine self-polymerization reaction, and the PDA modification layer provides a chelation site and a bonding interface for metal deposition; s2, the PDA modified PBO yarn obtained in the step S1 is subjected to chemical silver plating, silver is deposited on a PDA modified layer to form a continuous conductive layer, and conductive PBO core yarn is prepared; s3, carrying out melt blending and granulation on the low-dielectric-constant flame-retardant filler and thermoplastic polymer resin to prepare flame-retardant composite particles; and S4, spinning by taking the conductive PBO core yarn prepared in the step S2 as a core layer and a melt formed by melting the flame-retardant composite particles prepared in the step S3 as a skin layer to prepare the conductive yarn.

The utility model discloses an anti-static warp knitting screen cloth, which relates to the technical field of screen cloth and comprises a cloth layer formed by weaving anti-static fibers. A rough layer is arranged on the outer side of the cloth layer, and an antistatic coating is fixedly attached to the outer side of the rough layer. The anti-static fibers are formed by twisting conductive yarns, soft yarns and wear-resistant yarns, and the conductive yarns, the soft yarns and the wear-resistant yarns are different in thickness; the conductive yarns are carbon fiber yarns, the soft yarns are wool fiber yarns, and the wear-resistant yarns are polyester fiber yarns; the utility model has the advantages that the rough layer is arranged on the cloth layer so as to improve the adhesive force and enhance the connection strength when the antistatic coating is arranged; the anti-static fiber integrates conductive, soft and wear-resistant characteristics, so that the yarn can meet more diversified requirements and is rich in multifunctionality.

The invention discloses a continuous flexible conductive material preparation device and method.The device comprises a continuous flexible material, a guide roller and a conductive coating assembly, the assembly is sequentially provided with a tackifying unit, a powdering unit, a curing unit, a chemical plating unit and a post-processing unit in the material conveying direction, the center lines of conveying channels of all the units are collinear, and the interface gap is smaller than or equal to 2 mm. The micro-nano metal powder seed source is planted through the powdering device, rapid growth and closing of the micro-nano metal powder seed source are achieved through chemical plating after solidification, a compact conductive network is constructed, and a finished product is obtained.The short-process, rapid, efficient and environment-friendly preparation of the continuous flexible high-conductivity material can be achieved, the prepared material is low in cost, good in conductivity and high in durability, material transmission deviation is avoided, and the continuous flexible high-conductivity material can be obtained. The method improves the compactness of the coating and the consistency of products, recovers redundant adhesion liquid and catalyst particles, reduces the production cost, and is suitable for preparation of continuous flexible conductive materials such as conductive yarns, fabrics and films.

The utility model discloses an anti -static printed cloth relates to printed cloth technical field, the utility model discloses from inside to outside includes conductive layer and printed layer in proper order, the one side of conductive layer is away from printed layer and is densely covered with several convex network, the conductive layer and convex network are integrative forming structure, the conductive layer is through several conductive yarn warp -weft and is woven, the one side of conductive layer towards printed layer is densely covered with several conductive pile, printed layer is densely covered with several conductive holes, the conductive pile can extend into the conductive hole, and the setting of through the structure has guaranteed the anti -static effect of whole printed cloth.

The application provides a portable electromagnetic wind power generation device, which comprises an electromagnetic wind power generation unit and an electricity storage unit electrically connected with the electromagnetic wind power generation unit; the electromagnetic wind power generation unit comprises a flexible magnetic field module and a flexible cutting module electrically connected with the electricity storage unit; the flexible cutting module cuts the magnetic field of the flexible magnetic field module to generate electromotive force under the action of wind power, and the electromotive force is stored and transmitted by the electricity storage unit. The application sets the electromagnetic wind power generation unit as the flexible magnetic field module and the flexible cutting module based on functional conductive yarn or fabric and magnetic yarn or fabric. The electromagnetic wind power generation unit is set as a flexible structure, which is convenient for folding, storage, transportation and assembly. The flexible cutting module is light and soft, and is easy to swing to realize cutting and power generation under the action of wind power. Therefore, the application has a wide application prospect and significant economic value.

The utility model relates to an anti-static hook-and-loop fastener component, which comprises a first hook-and-loop fastener and a second hook-and-loop fastener, the first hook-and-loop fastener and the second hook-and-loop fastener are respectively provided with a bearing layer and a sticking layer, the bearing layers are fixedly connected with the sticking layers, the sticking layers comprise hook surface layers and loop surface layers, and the hook surface layers and the loop surface layers are arranged on the hook surface layers. The hook face layer is arranged on the first hook and loop fastener or the second hook and loop fastener, the loop face layer is arranged on the first hook and loop fastener or the second hook and loop fastener, a conductive fiber layer is arranged on the hook face layer and embedded in the hook face layer, a conductive yarn layer is arranged on the loop face layer, and the conductive yarn layer is arranged on the loop face layer. The conductive yarn layers and the hair surface layers are woven alternately. According to the design of the utility model, the conductive fibers are alternately woven by embedding the hook surface layer, the conductive yarns and the hair surface layer, so that the conductive structure is more stable, the physical structure is conductive to replace a surface coating, and the service life is obviously prolonged.

The utility model belongs to the technical field of camouflage, and relates to concave-convex cloth for preventing radar investigation. Comprising a plurality of first units which are connected with one another, each first unit comprises a plurality of mixed yarn sets in the longitude direction and the latitude direction, first conductive yarn sets and high-shrinkage yarn sets are arranged on the two sides of each mixed yarn set from near to far, and the high-shrinkage yarn sets are arranged at the ends of the outermost sides of the first units in each direction; the mixed yarn set comprises a second conductive yarn set, and common polyester yarn sets are arranged on the two sides of the second conductive yarn set. The undulation degree of the wrinkles of the cloth cover can be adjusted by controlling the arrangement distance of the high-shrinkage yarns, the larger the undulation degree of the wrinkles is, the better the anisotropy of the wrinkles is, the better the radar scattering effect is, and the better the anti-radar effect is. Compared with the prior art that a compact metal layer is coated on the surface of the camouflage cloth, the camouflage cloth is lighter and better in radar wave attenuation effect.

A fabric structure for electromyographic stimulation and electromyographic sensing electrodes comprises a fabric body, an electromyographic conductive portion, a first joint portion, a second joint portion and a surrounding yarn portion are formed on the fabric body, the electromyographic conductive portion comprises an electromyographic sensing area and an electromyographic stimulation area, and the electromyographic sensing area and the electromyographic stimulation area are located on the two opposite sides. The first joint part and the second joint part are respectively connected to two opposite side edges of the myoelectricity conductive part, and the surrounding yarn part is connected to other side edges of the fabric body except the myoelectricity conductive part; the first conductive yarn, the second conductive yarn and the surrounding yarn are all woven in the fabric body, and the first conductive yarn extends from the first joint part to the second joint part through the myoelectric sensing area; the second conductive yarn extends from the first joint part to the second joint part through the myoelectricity stimulation area; and the surrounding yarn extends from the first joint part to the second joint part through the myoelectric stimulation area.

The invention provides a dual-mode self-powered blind guiding sensing rope based on a pile loop structure and a preparation method thereof, and relates to the technical field of intelligent materials and structures. According to the preparation method, the spandex yarn wound with the conductive yarn is coated with the nylon fiber to obtain the nylon conductive yarn, the nylon conductive yarn is coated with the polyimide yarn to obtain the polyimide conductive yarn, then the two kinds of yarn are mixed and woven, and due to the fact that the nylon conductive yarn has good elasticity, and the polyimide yarn does not have elasticity, the nylon conductive yarn has good elasticity; the tension is removed after the polyimide fasciated yarns are discharged from the machine, so that the polyimide fasciated yarns are relatively overfed and raised to form pile loops, and the sensing rope with excellent elasticity and strength is obtained.

The utility model provides an anti-static bracelet for relay protection equipment inspection, the bracelet is an elastic wearable device composed of a watchband and a band buckle, the watchband is formed by weaving a conductive material and a common material, the inner layer is a conductive yarn which can effectively contact with skin and conduct static electricity, and the outer layer is a common yarn which can effectively conduct static electricity. And the wearing comfort and durability are improved. A conductive interface is arranged on the upper side of the belt buckle and is electrically connected with the wire yarn, so that a static electricity conduction path is smooth. The beneficial effects are that the watch is suitable for wrist sizes of different operators due to the comfortable watchband design and the adjustable belt buckle, wearing experience is improved, damage of static electricity to relay protection equipment is effectively prevented due to the stable conductive structure and the reliable grounding connection, the convenient connection and storage mode is adopted, and the safety of the relay protection equipment is improved. And the use convenience and the working efficiency are improved.

The invention discloses a 12-lead electrocardiogram monitoring garment based on bionic embroidery electrodes. The 12-lead electrocardiogram monitoring garment comprises a garment body, the bionic embroidery electrodes, a signal transmission assembly and an electrocardiogram recorder. The garment body is made of elastic knitted fabric and is of a round-collar sleeveless vest style, and a magic tape adjusting structure is arranged on the waist portion of the right side of the garment body. The bionic embroidery electrodes are sewn on the inner side face of the garment body through a bionic embroidery technology by adopting conductive yarns and make direct contact with the human body, and the bionic embroidery electrodes are designed according to differentiation of a hyposweat area, a middle sweat area and a hyperhidrosis area of the human body, and each signal transmission assembly comprises a metal electrode buckle and a detachable lead wire; the metal electrode buckles are detachably connected with the bionic embroidery electrodes in a one-to-one correspondence manner. The electrocardio garment is convenient to wear, comfortable, skin-friendly, high in signal acquisition quality, good in dynamic stability and suitable for dynamic long-range electrocardio monitoring.

The present application belongs to the field of functional textile preparation, and particularly relates to a tubular conductive heating fabric prepared by using carbon conductive yarn and a preparation method thereof. The tubular conductive heating fabric comprises a straight pipe area and / or a bent pipe area; the number of knitting needles of each course of the straight pipe area is consistent; the number of knitting needles of each course of the bent pipe area is different; the bent pipe area is locally knitted, the knitting needles of the needle-increasing area temporarily exit knitting, the loops on the needles do not fall off the needles, and the knitting needles re-enter knitting when the needles need to be decreased, so that the effect of upper and lower connection is achieved; the straight pipe area and the bent pipe area both comprise one or several of an electrode area, a heating area and a non-heating area. The tubular conductive heating fabric is knitted by using a local knitting method, different parts are heated by integrated design and full-forming technology, no additional sewing or splicing steps are needed in the manufacturing process, and material waste and labor cost in the production process are reduced; the tubular conductive heating fabric is driven by 24V voltage, can realize heating at different temperatures, and ensures the use safety of the fabric.

The application discloses a kind of flexible conductive yarn and its preparation method and application;The method comprises the following steps: S1, hexanediamine solution, conductive carbon material solution and alkali solution are mixed to obtain aqueous solution;Aqueous solution and oil phase monomer solution are mixed to carry out interfacial polymerization reaction to obtain film;S2, the film is stretched, and after removing organic solvent, twist, drying are obtained to obtain conductive yarn;The composition of the oil phase monomer solution includes adipoyl chloride.The conductive yarn prepared by the method has the effects of good elasticity, high strength and good conductivity.

The application provides a far-infrared light quantum flexible sensing fabric and a weaving method thereof, which comprises a far-infrared light quantum heating area and a flexible sensing area. The heating area is interwoven by warp yarn and weft yarn, the warp yarn comprises an electrode wire and common yarn, and the weft yarn comprises conductive heating yarn and common yarn I. The flexible sensing area is interwoven by warp yarn and weft yarn, the warp yarn of the flexible sensing area is consistent with that of the heating area, and the weft yarn comprises conductive sensing yarn and common yarn II. The flexible sensing area selects yarn with better conductivity and resilience, after pressure action, the conductive yarn is deformed, the conductive yarns in different layers are in contact, the corresponding resistance changes, after the pressure is removed, the sensing area fabric is easier to recover the deformation, the resistance returns to the value before the pressure action, the sensing strain and pressure are obvious, so that the flexible sensing fabric has the advantages of short effective response time, high sensitivity and good response stability.

One or more embodiments of the present specification relate to a signal acquisition device comprising a wearable body, the wearable body comprising: a plurality of electrodes in contact with the skin of a user, the plurality of electrodes comprising a first electrode and a second electrode, the first electrode and the second electrode being configured to acquire an electromyographic signal of a target muscle of the user, the first electrodes and the second electrodes are arranged at intervals in the muscle fiber direction of the target muscle; and a base body configured to carry the plurality of electrodes and enable the plurality of electrodes to be located at the target muscle; wherein the base body comprises base body yarns, the plurality of electrodes comprise conductive yarns, and the base body and the plurality of electrodes are integrally woven.

The invention relates to a wearable article that may detect biosignals using sensors. The knitted fabric comprises of warp chains 906 made of non-electrically conductive yarn and courses of weft loop

The invention relates to the technical field of flexible electronic devices, in particular to a stretching device and a preparation method of a flexible stretchable magnetic electronic device.The preparation method comprises the following steps that firstly, an elastic substrate is prepared, a PI nanofiber substrate is generated according to the electrospinning technology, and then a PI middle layer is printed on the basis of the fused deposition 3D printing technology; step 2, preparing a connecting bridge, taking elastic fiber yarns as a middle core, and winding conductive yarns on the middle core; step 3, preparing a flexible electronic device template, and connecting conductive yarns with the PI intermediate layer; 4, tensile property testing, wherein the tensile property is measured through a tensile device; the method is used for guaranteeing the interface bonding stability in the bonding process of the flexible substrate and other substances, and the stretching requirement and measurement in the complex curved surface stretching process are met.

The invention discloses a gesture recognition sensing glove, a preparation method thereof and a distance typing system. The method comprises the following steps: taking an elastic insulating yarn as a core yarn, taking a conductive yarn as a wrapping yarn, and uniformly and spirally winding the conductive yarn on the surface of the elastic insulating yarn through a wrapping process to form an elastic strain sensing yarn; then, elastic strain sensing yarns are sewn on the hand back of each finger of the duck web structure glove to cover the whole finger to form on-finger strain sensing yarns so as to obtain longitudinal tensile strain resistance signals generated by bending or straightening the fingers; elastic strain sensing yarns are sewed on interfinger areas of the glove with the duck web structure to form interfinger strain sensing yarns so as to obtain transverse tensile strain information generated by opening or closing fingers. The gesture recognition sensing glove and the distance typing system provided by the invention have high sensitivity and high stability.

The invention relates to the technical field of intelligent textiles and wearable devices, in particular to an intelligent garment integrated with a three-dimensional knitted electrode and used for monitoring physiological signals of a human body in real time and a manufacturing method, and the garment comprises a fabric body, the three-dimensional knitted electrode and a hidden wire channel which are integrally knitted and formed. The electrode is of a protruding three-dimensional structure formed by conducting yarn through the three-dimensional knitting technology and makes direct contact with the skin. The wire channel is of a hollow structure in the fabric to contain wires. During manufacturing, weaving of the garment body, the electrodes and the channels is synchronously completed on a computerized flat knitting machine through an integrated weaving program, and then a wire penetrates into the computerized flat knitting machine and is welded and connected at low temperature. The problems that traditional intelligent clothes are unstable in electrode connection, signals are prone to motion interference and wearing is uncomfortable are fundamentally solved, and physiological signals such as electrocardio and myoelectricity can be monitored stably, comfortably and enduringly in dynamic motion.

The application discloses a pile sensor and a preparation method thereof, and relates to the technical field of fabric sensing. The application specifically comprises: a substrate layer and a pile layer connected to the substrate layer; the pile layer comprises a plurality of pile structures formed by interpenetrating conductive yarns; each pile structure comprises a fixed part interpenetrating and anchored to the substrate layer, and an arched part integrally connected with the fixed part at both ends, so that the conductive yarns form a closed conductive loop; and the pile layer causes resistance change through contact state when deformed under stress. The arched part and the fixed part formed by the conductive yarns constitute a closed conductive loop, the free end of the fiber is eliminated, the signal drift problem caused by easy hooking and easy lodging of the existing cut pile sensor in interaction is effectively solved, and the pile sensor has the advantages of fast structure rebound, high detection precision, strong anti-interference ability and the like.

The utility model discloses a warm-keeping anti-static jean fabric, which belongs to the textile field, warp yarns comprise upper warp yarns and lower warp yarns belonging to two systems respectively, weft yarns comprise upper weft yarns, middle weft yarns and lower weft yarns belonging to three systems respectively, the upper warp yarns and the upper weft yarns are interwoven to serve as an upper layer of the fabric, and the lower warp yarns and the lower weft yarns are interwoven to serve as a lower layer of the fabric. The middle weft yarns are located between the upper layer and the lower layer and are not interwoven with the warp yarns, a fleece raising layer is arranged on the bottom surface of the lower layer, and the middle weft yarns comprise conductive yarns. The conductive yarn is used as the middle weft yarn, static electricity caused by friction of the upper layer and the lower layer of the fabric can rapidly achieve charge balance by means of the middle weft yarn, and discomfort of a user caused by electrostatic stimulation is avoided; meanwhile, the middle weft yarns are equivalent to a down-filled weave and can support a space between the upper layer and the lower layer, air retained in the space is relatively static and has high heat resistance, and the warm keeping effect of the fabric can be enhanced; and heat loss is reduced in cooperation with the fleece raising layer, so that a better warm-keeping effect is achieved.

The invention provides a flexible embroidery conductive sensing unit with a multilayer stress decoupling isolation structure and a preparation method thereof. The flexible embroidery conductive sensing unit comprises a substrate fabric layer, a stress decoupling isolation layer and a sensing function embroidery layer which are sequentially stacked from bottom to top, the base fabric layer is used as a wearing carrier; the stress decoupling isolation layer comprises an anchoring area and a suspension area; the stress decoupling isolation layer is attached to the substrate fabric layer in a non-full-surface connection mode so as to form a low-strain area at the corresponding position of a sensing area, and strain of the substrate fabric layer is inhibited from being transmitted upwards through a shear hysteresis effect; and the sensing function embroidery layer is constructed by conductive yarns on the stress decoupling isolation layer through an embroidery process. According to the sensing unit, the stress decoupling isolation layer with a specific connection mode is arranged between the substrate fabric layer and the sensing function layer, and the transmission of deformation of the substrate fabric layer to a sensing area is inhibited by using a shear hysteresis effect, so that signal interference is reduced, and the sensing stability is improved.

The application discloses a weaving method of embedded inorganic semiconductor base thermoelectric fabric, comprising the following steps: determining the size of inorganic thermoelectric block according to the design size of the thermoelectric fabric; then plating conductive material on the upper surface and the lower surface of the inorganic thermoelectric block; then determining the length of warp yarn and weft yarn according to the design size of the thermoelectric fabric; determining the size of each pocket-like space according to the size of the inorganic thermoelectric block; starting the weaving process; after the weaving is completed, heating the upper surface and the lower surface of the fabric, welding the conductive yarn and the inorganic thermoelectric block; finally, connecting all the inorganic thermoelectric blocks in series to obtain the thermoelectric fabric. The application combines the thermoelectric principle and the textile technology, embeds the inorganic thermoelectric block into the fabric, and realizes one-piece forming, thus solving the key technical problem of the flexibility of the inorganic thermoelectric material, realizing three-dimensional deformation while maintaining excellent thermoelectric performance, and realizing temperature difference refrigeration while maintaining high thermoelectric conversion efficiency.

The application discloses a cut pile sensor and relates to the technical field of fabric sensing. The cut pile sensor comprises a substrate layer and a sensing layer arranged on the substrate layer; the sensing layer is composed of a plurality of array-arranged conductive units; each conductive unit is anchored on the substrate layer through conductive yarn interweaving and extends outward along the surface of the substrate layer to form an upright conductive pile bundle; the conductive pile bundle is configured to change the contact state inside and between the conductive pile bundles when being deformed due to external touch, so as to cause resistance change and output a tactile detection signal. The application connects the upright conductive pile bundle on the substrate layer as a detection head of the fabric sensor, effectively solves the problem that the traditional sensor is hard and difficult to identify low force threshold action, has the characteristics of strong tactile affinity, high detection sensitivity, strong anti-interference ability and simple preparation process, and is suitable for scenes such as intelligent toys and rehabilitation assistance.

The utility model belongs to the technical field of medical equipment, and relates to a mattress, which is a spacer fabric and comprises a surface knitted layer, a middle supporting layer and a bottom knitted layer from top to bottom, the surface knitted layer consists of a non-pressure sensing area and a pressure sensing area, the pressure sensing area is formed by weaving conductive yarns and insulating yarns together, and the bottom knitted layer consists of a non-pressure sensing layer and a pressure sensing layer. And the non-pressure sensing area is formed by weaving insulating yarns. The mattress disclosed by the utility model is of an integrated woven structure, and the pressure sensing area (sensor) on the mattress cannot shift, so that the pressure monitoring is accurate.

The application discloses a knitted and embroidered integrated pressure monitoring sensor with slow pressure type. The application provides a knitted and embroidered integrated pressure monitoring sensor with slow pressure type, which is based on the integrated mode of knitting jacquard single-layer and double-layer air layer structure, locally uses yarn nozzles to bring in conductive yarn, adopts single-face local jacquard structure with plain knitting and floating yarn on the surface, adds a certain proportion of conductive yarn and bulk yarn in the middle, and thus weaves the sensor area. The application weaves the double-face and weft insertion structure together, uses the conductive yarn to locally form the double-layer piezoelectric layer to obtain more elasticity and larger resistance change range. The integrated sewing structure is used as an additional sensing area, so that the stability of the sensor under severe motion is improved, and the elasticity degree and the pressure contact surface are buffered and the contact degree is strengthened by adding the slow pressure gasket of the elastic foaming silica gel or TPU at the double-layer position.

The utility model discloses a terylene woven fabric which comprises a terylene fabric base layer formed by interweaving warp yarns and weft yarns, yarns used by the first warp yarns, the second warp yarns, the third warp yarns, the fourth warp yarns and the fourth warp yarns are anti-static antibacterial covering yarns, and yarns used by the first seam warp and the second seam warp are terylene monofilaments; yarns used by the first to eighth weft yarns are antistatic polyester yarns, and polyester rough yarns used by the first core weft and the second core weft; the antistatic antibacterial covering yarn comprises a core yarn, a first wrapping yarn and a second wrapping yarn, wherein the first wrapping yarn and the second wrapping yarn cover the outer side of the core yarn; the core yarn is a polyester DTY filament, the first wrapping yarn is a conductive yarn, and the second wrapping yarn is an antibacterial yarn. The raised line weave and the core weft are used, so that a raised line structure is formed on the surface of the fabric, and the fabric has unique textures. And the antistatic polyester silk and the conductive yarn are also used, so that the fabric has an antistatic effect. And the fabric has an antibacterial effect due to the used antibacterial yarns.

The application discloses a kind of flexible conductive yarn and its preparation method and application;The method comprises the following steps: S1, polyamide film is stretched;S2, the film after stretching is first soaked in pyrrole solution;Again, it is soaked in mixed solution and carries out polymerization reaction, again twist, dry and obtain flexible conductive yarn;The concentration of the pyrrole solution is 1wt.%~2wt.%;The mixed solution includes sodium anthraquinone-2-sulfonate and ferric chloride.The polyamide film of the stretched filament is first soaked in pyrrole solution, and polyamide film containing pyrrole can be obtained, then pyrrole is polymerized into polypyrrole in the solution containing sodium anthraquinone-2-sulfonate (AQS) and ferric chloride, finally, the twisted film is twisted, so that the flexible conductive yarn with excellent mechanical properties, conductive stability, conductive performance and water resistance characteristics is prepared.

The application provides a stretchable conductive core-sheath composite yarn insensitive to resistance strain and a drafting differential method for preparing and applying the same, and relates to the technical field of conductive materials.The stretchable conductive core-sheath composite yarn insensitive to resistance strain comprises an elastic sheath and a conductive core wire.The elastic sheath is an elastic polymer film layer.The conductive core wire is one of a silver-plated conductive yarn, a stainless steel conductive yarn, a graphene conductive yarn and a carbon black conductive yarn.The conductive core wire is spirally distributed.The stretchable conductive core-sheath composite yarn provided by the application is low in cost, excellent in strain insensitivity, stretchable, high in conductivity, environment-friendly and externally insulated.

A lower limbs wearable device includes a flexible textile sleeve. The flexible textile sleeve is weaved by elastic yarns and conductive yarns. The flexible textile sleeve includes knee alignment mark, a lower-front alignment mark, and an upper-front alignment mark. The knee alignment mark is disposed at an outer surface of a middle section of the flexible textile sleeve. The lower-front alignment mark is disposed at an outer surface of a lower section of the flexible textile sleeve. The upper-front alignment mark is disposed at an outer surface of an upper section of the flexible textile sleeve. The flexible textile sleeve further includes a plurality of textile electrodes, textile contacts, and textile wires. The textile wires connect the textile electrodes to the textile contacts, respectively.