Smart textiles: Functionally integrated textile technology for industry and OEMs

Smart textiles (also known as smart textiles, e-textiles, or intelligent textiles) are textiles with integrated technical functions. Conductive threads, wires, or fibers are incorporated into the base material using technical embroidery or other textile processes. These textiles heat, measure, conduct, or transmit without losing their flexibility and elasticity. In industrial contexts, they are used as heating elements, sensors, electrodes, or conductive traces in products from OEM manufacturers in the medical technology, automotive, and mechanical engineering sectors.

In a wearable device (for example, a smartwatch), the electronics are a separate component attached to or mounted on a substrate. With smart textiles, the technical function is integrated directly into the textile structure. The conductive materials are part of the fabric, not glued or sewn on. This preserves the textile properties: the material remains flexible, stretchable, and in many cases, washable.

Smart clothes (also called intelligent clothing or smart clothing) refer to garments with integrated electronics for end consumers, such as heated jackets or sports shirts with heart rate monitoring. Smart textiles in an industrial context go further: They include functional textile components such as heating elements, sensors, electrodes, and conductive traces, which OEM manufacturers integrate into their own products. Embro produces these industrial smart textiles, not the end-consumer products.

Active smart textiles integrate electronic components directly into the textile material. Unlike passive smart textiles (for example, UV-absorbing fabrics or antimicrobial coatings), active versions contain sensors, actuators, or conductive traces that process electrical signals. Examples include textile heating elements with defined resistance paths, textile pressure sensors for orthopedic applications, or EMS electrodes for therapeutic devices.

The four common methods are technical embroidery, weaving/knitting, printing with conductive inks, and laminating/bonding. Technical embroidery offers the greatest freedom in terms of geometry and material selection: strands from 0,04 mm, stainless steel, silver, carbon, and other materials can be applied to any substrate. The method is suitable for prototypes and large production runs alike.

Industrial applications for smart textiles are found primarily in medical technology (textile electrodes, coil mats for therapy devices), the automotive sector (battery heating, seat heating, interior heating elements), mechanical engineering (process heat, heating sleeves, control cabinet heating), and transport and logistics (underfloor heating in vehicles, heated transport containers). Further areas of application include occupational safety, sports, and smart living.

The typical process comprises five steps: requirements analysis (geometry, function, material, quantity), CAD design of the textile functional element, prototype production for validation in the customer's process, optimization based on test results, and series production. At Embro, all steps take place at the Falkenstein site in the Vogtland region. The timeframe from the initial consultation to the approved series production depends on the complexity of the application and the regulatory requirements.

Embro manufactures smart textiles in small and large series on the same embroidery machines. CAD/CAM-controlled production eliminates tooling costs and requires no minimum order quantities for initial orders. This makes the process suitable for prototypes, first samples, and pilot series before a customer transitions to large-scale production.