20s, 30s, 40s and 50s Ne cotton yarns have the same twist per cm. The yarn having maximum fibre obliquity is

Ring spun cotton yarns of 30, 40, 50 and 60 tex are made from the same fibre. All these yarns are spun with a constant twist per cm of 10. The yarns can be arra...

With increasing twist, spun yarn strength