Twisting the fibres to form the yarn is essential to enable them to hold together, but it reduces the strength of the individual fibres, and, within limits, the lighter the twist the greater is the strength of the yarn.
Kubalulekile ukujija iintsinga ukwenza imisonto ibambane, kodwa oku kunciphisa amandla omsonto ngamnye, kwaye nje ukuba kube cekeceke ukujija umsonto uba namandla.