Yarn evenness, thin and thick places


As described in chapter 2.7.4, the drafting unit is a very important element. The settings of this unit have to be carefully adapted to the fiber material being processed. Under this presupposition, air-jet spun yarns achieve good evenness values, comparable to those of ring-spun yarns. The drafting unit is in fact the main element for influencing the evenness values of the air-jet spun yarns.