Shielding, grounding and conductive textiles

Shielding

Radio-frequency fields

Schematic of an incoming wave meeting a silver-plated conductive layer: part is reflected, part absorbed, and the rest passes through.
A conductive layer reflects and absorbs part of an incoming wave; the rest passes through.Schematic · not to scale

Silver-plated fabric reflects and absorbs part of the radio-frequency energy that reaches it. Formed into a continuous layer, it reduces how much gets through to the other side.

  • Automotive

    Vehicle electronics have to work side by side without interference. Shielding fabric lines housings and cable runs and is used in pre-compliance test setups.

  • EMC testing

    Before final compliance testing, devices are often checked in soft-walled enclosures. Light, flexible fabric makes these tents, covers and partitions practical.

  • Aerospace & defense

    On-board systems must keep working near strong electromagnetic fields. Flexible shielding layers form large test enclosures, equipment covers and shelters.

  • Home & personal

    Canopies, curtains, pouches and garments use the same fabric to reduce the radio-frequency signals that pass into a room, a canopy or a pocket.

Grounding

Static charge to earth

Schematic of a fitted sheet in silver-plated fabric: charge moves to a snap on a sewn-on patch and along a grounding cord to a ground point.
Charge on the silver-plated sheet moves to the snap and along the grounding cord to ground.Schematic · not to scale

Grounding is about the connection. Charge that collects on a conductive fabric surface is led across the fabric, through the snap and grounding cord, to an earth-ground point.

  • Electronics assembly

    Static discharge can damage components during assembly and handling. Conductive workwear, covers and packaging lead charge away in a controlled way.

  • Cleanrooms

    Where charge has to stay under control, conductive fabric is built into garments, curtains and covers, each one connected to a ground point in the room.

  • Apparel & footwear

    Conductive yarn knitted or woven into garments, socks and shoe insoles keeps static from building up as people move, sit and walk through the day.

  • Home grounding

    Sheets, pillowcases and mats made with silver-plated fabric connect through a sewn-on snap and a grounding cord that runs to an earth-ground point in the home.

Conductive

Current along the fiber

Schematic of a silver atom releasing a free electron, and current flowing along a silver-plated yarn in a simple circuit.
Free electrons in silver let current move along the plated fiber.Schematic · not to scale

Silver-plated and metal fibers carry current along the yarn itself, so a current path can be sewn, knitted or woven into a textile.

  • Wearable electronics

    Conductive yarn and thread take the place of wires inside a garment, carrying power and signals between components while the textile stays soft.

  • Heating textiles

    Current running through a conductive yarn produces warmth, so heating paths can be knitted, woven or stitched directly into a fabric panel.

  • Fencing

    The lamé jacket marks the valid target area. Its conductive surface lets the scoring apparatus register each touch that lands on that area during a bout.

  • Flexible circuits

    Conductive fabric and sew-in parts such as snaps and hook-and-loop join textile circuits and connect them to electronics without a rigid board.

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