Properties of textile fibres. (Part 1)

Properties of textile fibres

Electrical properties

Fibres are usually not used in electrical application, however their property of great interest is their resistivity. Too high resistivity leads to the development of static charge, which cause the fabric to cling and to be difficult to clean.

Mechanical properties

The mechanical properties of fibre are quite complex. The stressed textile fibre is a visco-elastic complex system in which number of irreversible process takes place. On the basis of fibre stress strain curve, it is divided into two types; silk like curve and wool like curve.

Moisture regain

The moisture regain of synthetic polyesters, nylon and acrylics are lower than that of natural fibres, that the synthetics are classed as hydrophobic materials. This is an advantage for rapid drying.

Dyeability

The hydrophobic materials are difficult to dye. Acrylics are bad in this respect. Polyesters and nylon are intemediate in dyeability. While cellulose and cellulosic fibre are eminently dyeable.

Chemical stability

The fibre must be stable with water, drycleaning solvents, alkalies, dilute acids and bleaches. Silk and nylon are the least satisfactory fibre in veiw of standing to weatherability, while acrylics are most stable in this respect.
Properties of textile fibres part 2