Abstract: Today ring, rotor and air-jet spinning system are commercially used for yarn production. Each spinning technology creates a typical yarn structure. This yarn structure determines the characteristics of the yarn itself, the characteristics in downstream processing and finally of the subsequent textile product. Textile fabrics with the better hand can be undoubtedly produced from combed ring yarn. In order to manufacture a soft rotor yarn, the twist factor must be set low and supportive measures need to be undertaken in textile finishing. Rotor spinning has a great potential to reduce the twist factor, which is the basic prerequisite for the production of knitted fabric with a soft touch, by support of a new spin box generation of and its components. The air-jet spinning system is now moving from 100% CV into new applications like CO blends and 100% CO combed for knitting. The challenge is to compete the softness of a conventional ring yarn.

The main objective of this study are the different ways to achieve comparative fabric hand of fabric made up of rotor yarn, air-jet yarn compared to fabric made up of ring yarn at different stages. This evaluation will support to exploit the potential of rotor and air-jet spinning in terms of its higher productivity, lower conversion costs at the same time.

Key words: ring spinning; rotor spinning; air-jet spinning; yarn structure; hand value