ABSTRACT
Once the cop is ready it needs to be replaced by the empty one, known as doffing. The capacity of full ring cop ranges between 30 g and 100 g of yarn, depending on yarn count spun and size of the bobbin used. Nevertheless, it takes 1-30 hours to fill it. Both the figures purely dependent on the type of yarn spun. Doffing can be carried out manually (old) or mechanically (new) after under winding is over.
