Provided is a textile band for transmitting an electrical signal, which is stretched by applied tensile force to prevent damage thereto due to tensile force, and a smart wearable using the same. The textile band for transmitting the electrical signal includes yarns used as wefts, elastic threads used as warps, and a plurality of conductive yarns which are used as other warps and are disposed in a zigzag form to be stretched depending on stretching of the elastic yarns. The motion-sensing smart wearable includes an inner skin layer, to which the textile band is attached, a motion sensor module which is attached to the inner skin layer to sense a motion of the human body and transmit a sensed motion signal through the textile band, and an outer skin layer which is separably combined with the inner skin layer.

A stable conductive myocardial patch with a negative Poisson's ratio structure is provided. The preparation method includes preparing a myocardial patch substrate with concave polygons as the structural units by weaving or knitting, and then a conductive coating is coated on the surface of the substrate. Alternatively, the yarns can be processed into conductive coated yarns first, and then used as the raw material to weave or knit a stable conductive myocardial patch with a negative Poisson's ratio structure. The prepared myocardial patch has a relative resistance change of less than 5% at 50% tensile strain. When the strain of the structural units is within 50%, the fabric exhibits a negative Poisson's ratio structure, which expands in the perpendicular direction of the tensile load. The fabric exhibits a negative Poisson's ratio effect and anisotropy of Young's modulus, which matches the mechanical behavior of natural myocardium.

A fabric-based item may include fabric layers and other layers of material. An array of electrical components may be mounted in the fabric-based item. The electrical components may be mounted to a support structure such as a flexible printed circuit. The flexible printed circuit may have a mesh shape formed from an array of openings. Serpentine flexible printed circuit segments may extend between the openings. The electrical components may be light-emitting diodes or other electrical devices. Polymer with light-scattering particles or other materials may cover the electrical components. The flexible printed circuit may be laminated between fabric layers or other layers of material in the fabric-based item.

A method for inserting a wire into a longitudinal groove of a semiconductor chip for the assembly thereof, the groove containing a pad made of a bonding material having a set melting point, comprises: in a positioning step, placing a longitudinal section of the wire along the groove, in forced abutment against the pad; and, in an insertion step, exposing a zone containing at least one portion of the pad to a processing temperature higher than the melting point of the bonding material and for a sufficient time to make the pad at least partially melt, and causing the wire to be inserted into the groove. The present disclosure also relates to a piece of equipment allowing the insertion method to be implemented.

An encapsulated assembly of electronic componentry, suitable for incorporation into a textile or a yarn, and the assembly comprising two flexible substrates (3, 4) which encapsulate the electronic componentry, at least one of the flexible substrates comprising at least one preformed relief region (3a), which provides a volume which at least in part accommodates the electronic componentry, and the componentry located substantially at a neutral axis (N) of the assembly.

Provided are sensors comprising one or both of MXene-coated fibers and MXene-coated yarns. The MXene-coated yarns can be utilized for various types of smart textile applications where conductivity is required. These include but are not limited to sensors (e.g. pressure, strain, moisture, and temperature), supercapacitors, triboelectric generators, antennas, and electromagnetic interference (EMI) shielding textiles.

A housing of an electronic device according to various embodiments may include a woven material including TPU yarns, and a light emission module comprising light emitting circuitry, wherein light emitted from the light emission module may be directly transmitted through the woven material to display at least one piece of information about the electronic device.

Disclosed herein are composite materials suitable for use in wearable technology and other similar applications. The composite includes a fabric (12, 20, 30, 40) and a wire (11, 22, 32, 41, 1100, 1210) hidden within the fabric (12, 20, 30, 40) in such a way that the fabric (12, 20, 30, 40) protects the wire (11, 22, 32, 41, 1100, 1210) from mechanical stresses. In addition, the wire (11, 22, 32, 41, 1100, 1210) may comprise a yarn material that has a core of an elastic polymeric material surrounded by a wire. Processes to make these materials are also disclosed herein.

A flexible electroluminescent fiber for embroidery sequentially includes: metal core wires, a light-emitting layer, a transparent conductive layer, a filament, and a protective paint, wherein a quantity of the metal core wires is an even number, and the metal core wires are pasted together before being wrapped by the light-emitting layer; the light-emitting layer is coated with the transparent conductive layer; the protective paint and the filament are exterior to the transparent conductive layer; the metal core wires emit light through energizing; a diameter of the electroluminescent fiber is 0.1-0.3 mm, and a 20-36V safe voltage is applied for emitting light. The flexible electroluminescent fiber of the present invention has sufficient tensile force, and smooth and soft surface. Appearance and hand feeling of the present invention are the same as those of clothing textile fibers.

A method for making a copolymer-wrapped nanotube coaxial fiber. The method includes supplying a first dope to a spinning nozzle; supplying a second dope to the spinning nozzle; spinning the first and second dopes as a coaxial fiber into a first wet bath; and placing the coaxial fiber into a second wet bath, which is different from the first bath. The coaxial fiber has a core including parts of the first dope and a sheath including parts of the second dope. Solvent molecules of the second wet bath penetrate the sheath and remove an acid from the core.