A stretchable cable is provided that allows an extra length to be reduced when routed in a movable part. The stretchable cable includes an elastically deformable hollow insulation having a hollow portion that is continuous along a cable longitudinal direction, and at least one electricity- or light-conducting wire-shaped body provided in a spiral shape along the cable longitudinal direction and fixed to the hollow insulation to stretch and contract together with the hollow insulation. The cable is elongated not less than 1.2 times when a tensile force is applied, and the cable returns to an original length when the tensile force is removed.

A telescopic electric conductor includes an electrically conductive first tube having a longitudinal axis and an electrically conductive second tube movable relative to the first tube along the longitudinal axis while being at least partly received within the first tube. An electrically conductive flexible self-supporting element is arranged inside the first tube and is mechanically and electrically connected to the first tube and to the second tube. The flexible element is arranged to elastically deform along the longitudinal axis. The flexible element has a waveform shape with several cycles of the waveform includes a number of sections that are welded together, each section having a shape of a half cycle of the waveform.

Provided are stretchable electronics and a method for manufacturing the same. The stretchable electronics may include a substrate, a plurality of electronic elements disposed to be spaced apart from each other on the substrate, and a wire structure disposed on the substrate to connect the plurality of electronic elements to each other. The wire structure may include an insulator extending from one of the electronic elements to the other of the adjacent electronic elements and a metal wire configured to cover a top surface and side surfaces of the insulator. The insulator may include at least one bent part in a plan view.

Provided are stretchable electronics and a method for manufacturing the same. The stretchable electronics may include a substrate, a plurality of electronic elements disposed to be spaced apart from each other on the substrate, and a wire structure disposed on the substrate to connect the plurality of electronic elements to each other. The wire structure may include an insulator extending from one of the electronic elements to the other of the adjacent electronic elements and a metal wire configured to cover a top surface and side surfaces of the insulator. The insulator may include at least one bent part in a plan view.

A composite wiring includes: elastic wiring comprising an elastic tube, a conductor wire disposed inside the tube, and fixing portions that fix the conductor wire and the tube together at both ends of the tube in the lengthwise direction thereof, the length of the conductor wire between the fixing portions when the tube is in an unextended state being longer than the length of the tube between the fixing portions; other wiring separate from the elastic wiring; and a connection member that connects the conductor wire of the elastic wiring and a conductor wire of the other wiring by caulking in a state of being brought into contact with each other, the connection member having an interior section sealed in a watertight manner with a sealing material.

Presented herein are gas permeable, ultrathin, stretchable epidermal electronic devices and related methods enabled by self-assembled porous substrates and conductive nanostructures. Efficient and scalable breath figure method is employed to introduce the porous skeleton and then silver nanowires (AgNWs) are dip-coated and heat-pressed to offer electric conductivity. The resulting film has a transmittance of 61%, sheet resistance of 7.3 Ω/sq, and water vapor permeability of 23 mg cm.sup.−2 h.sup.−1. With AgNWs embedded below the surface of the polymer, the electrode exhibits excellent stability with the presence of sweat and after long-term wear. The present subject matter demonstrates the potential of the electrode for wearable applications—skin-mountable biopotential sensing for healthcare and textile-integrated touch sensing for human-machine interfaces. The electrode can form conformal contact with human skin, leading to low skin-electrode impedance and high-quality biopotential signals. In addition, the textile electrode can be used in a self-capacitance wireless touch sensing system.

An object is to solve problems associated with a stretchable wire member that includes, for example, a garment with stretchable wires formed thereon, that is, to solve the problems of wrinkles and undulations that often occur after the garment is stretched. A stretchable wire member includes a fabric; a base layer disposed on a surface of the fabric; a conductive layer disposed in part of the fabric, the conductive layer being on a surface of the base layer; and a protective layer covering the conductive layer. In the stretchable wire member, an elastic modulus E′3 of a multilayer body portion including the fabric, the base layer, and the protective layer ranges from 1 MPa to 6 MPa.

The present invention discloses a telescopic hose and the process technology thereof. The telescopic hose comprises an elastic support member that can be configured to conduct strong electricity; the support member comprises a first wire and a second wire, and the first wire and the second wire are arranged in a double helix structure in cooperation with each other; a hose wall that is wrapped around the outer side of the support member, and at least part of the hose wall between the first wire and the second wire forms a corrugated portion. Through the setting of the above structures, the hose can not only conduct strong electricity, but also stretch back and forth and turn at any angle. In addition, the hose structure is relatively simple, the amount of gas and liquid passing per unit time is larger.

A telescopic electric conductor includes an electrically conductive first tube having a longitudinal axis and an electrically conductive second tube movable relative to the first tube along the longitudinal axis while being at least partly received within the first tube. An electrically conductive flexible self-supporting element is arranged inside the first tube and is mechanically and electrically connected to the first tube and to the second tube. The flexible element is arranged to elastically deform along the longitudinal axis. The flexible element has a waveform shape with several cycles of the waveform includes a number of sections that are welded together, each section having a shape of a half cycle of the waveform.

A stretchable conductor forming paste containing a conductive filler, a polyurethane elastomer having a glass transition temperature (Tg) of −60° C. to −10° C. and a urethane group concentration of 3000 to 4500 m equivalent/kg, and an organic solvent. Preferably, a total amount of components excluding the solvent is 100 parts by mass, a total of the conductive filler is 70 to 95 parts by mass, and an amount of the polyurethane elastomer is 5 to 30 parts by mass. The obtained paste is printed or coated and then dried to obtain a stretchable conductor, capable of forming a wiring line having good repeated stretchability.