Prominence of Twill Weaves in Weaving
An important factor that influences the prominence of twill is the direction of twist in the yarn. When the direction of yarn twist is same as the twill direction, the prominence is reduced and when the direction of the yarn twist is opposite to the twill direction, the prominence of the twill is increased. In other words, a Z twill with Z twist yarn or an S twill with S twist yarn shows less prominence.