Technical textiles

Conductive fabrics allow an electric current to pass through them. Metal fibres can be woven into ordinary textile fibres, or conductive threads can be woven or sewn into a textile design. These conductive strands act as flexible connections between electronic components.

In a health-monitoring garment, conductive threads can connect a sensor to an electronic device while remaining part of the clothing. This makes them useful for wearable technology and smart clothing, where rigid wiring would be less convenient. Their key functional property is electrical conductivity, not simply strength or softness.

Fire-resistant fabrics: protection against burning

Fire-resistant fabrics resist ignition or burn more slowly than ordinary fabrics. This performance can come from the fibres themselves or from a chemical treatment applied to the fibres.

They are used in firefighters’ protective clothing, racing drivers’ clothing, fire blankets and furnishings such as curtains and sofa coverings. The reason for selecting them is to reduce the danger from fire: a garment that resists ignition offers protection that an ordinary clothing fabric may not provide.

Resistance to burning is different from being unaffected by heat. A designer must choose a fabric with performance appropriate to the particular exposure and use.

Kevlar: strength without excessive weight

Kevlar is a synthetic fibre with very high tensile strength: it resists breaking when pulled. Kevlar fibres can be woven into a fabric that is strong yet lightweight. It also offers resistance to cutting, impacts and heat.

These properties explain its use in body armour, motorcycle clothing and protective gloves. In body armour, its strength and impact resistance contribute to protection, while its low weight helps the wearer move. In a protective glove, cut resistance is especially relevant.

The useful connection is therefore not just ‘Kevlar is strong’. It is that a particular kind of strength or resistance meets a particular safety need, without making the product excessively heavy.

Microfibres and micro-encapsulation

Microfibres are very fine synthetic fibres. They can make soft, lightweight fabrics and are used in sportswear. Suitable microfibre fabrics allow moisture and air to pass through, helping the wearer remain comfortable. Microfibres are also used in absorbent, fast-drying cloths and towels; cleaning cloths can pick up dust.

Micro-encapsulation is a separate enhancement. Tiny capsules containing another substance are incorporated into the textile. During use, the capsules can release their contents, giving the fabric an additional function. Depending on what is incorporated, this can help control odour, maintain hygiene or support temperature control.

A microfibre garment incorporating micro-encapsulation therefore combines two ideas: very fine fibres provide the fabric’s physical characteristics, while the capsules provide an additional function. Not every microfibre fabric contains capsules.

Classifying textiles by what they do

It is useful to group technical textiles by their functional properties. Conductive fabric has an electrical function; fire-resistant fabric provides protection against ignition and burning; Kevlar provides mechanical protection through strength and resistance to damage. Microfibre fabrics can provide moisture management or absorbency, while micro-encapsulation can add functions such as odour control.

These groups can overlap. Kevlar also offers heat resistance, and a garment can combine more than one textile enhancement. Classification helps identify useful properties; it does not mean that each fabric has only one function.

Selecting a textile from technical information

A technical specification describes a material’s performance. To use one, first identify what the product must do, then find the information that addresses those needs. If numerical results are supplied, check their units and compare like-for-like measurements.

Consider this comparison for a sports top designed to monitor the wearer’s health:

Candidate A addresses comfort and odour control, but its description does not identify an electrical connection. Candidate B addresses the essential requirement to connect the monitoring components. A design might combine a comfortable base fabric with conductive threads rather than expect one enhancement to meet every need.

For protective clothing, the priority changes: resistance to burning, cutting or impact may be more important than odour control. A justified selection connects the stated material properties to the product’s actual requirements.