This section of RIKIPEDIA covers the technical and technological aspects of the yarn production process between 
carding and ring spinning. This is the most important part of the process, because the quality of the yarn depends to a large extent on the quality of the intermediate products from which it is made.
This volume is in three parts, dealing in turn with:
- the combing section (including preparation for combing),
- the drawframe and
- the roving frame.