ABSTRACT

Spinning zone: It is the tension required for suitable conversion of drafted strand to yarn between front roller and lappet guide. It means for imparting desired fiber orientation before being twisted and ensures well packed yarn structure. Thereby product yarn can achieve favourable strength – spinningtension relationship. Balloon tension: It deals with the yarn tension desired to develop stable balloon envelop. The balloon must be sufficiently large enough to avoid interference with the rotating bobbin encapsulated inside. This is mandatory

for stable spinning to prevent balloon collapse between lappet guide and ring traveller. On the contrary the balloon should not be too large to cause excessive end breaks due to higher balloon tension.