Yarn guides are the one of the helping instrument to control the yarn path. Yarn guides are required to perform the winding or unwinding process properly. In every operation where yarns are transferred from one package to another, yarn guides are required there. Yarn guides are used during winding, warping, beaming and weaving process.
In winding and unwinding it is necessary to control the yarn path. For side withdrawal it is possible for the yarn to pass along a smooth varying yarn path. But for over end withdrawal the yarn must be controlled by placing guides along the yarn path.
Yarn guides are normally made of hard smooth steel or ceramic. Different yarn guides are made by the yarn guide manufacturer. Yarn guides should be perfect in size otherwise winding process will be hampered. The yarn path should keep clean during withdrawal of the yarn. Yarn cleaner also placed along the yarn path.
Types of yarn guides: There are two types of yarn guides which are used during withdrawal or unwithdrawal of yarn. They are:
- A yarn end is required for threading: It takes extra time in threading. So, speed of operation is increased. The yarn experienced more friction. Shape of the yarn guides are may be as follow:
- Ceramic insert type
- Trumpet type
- Bush or roller type
- A yarn end is not required for threading: Threading is very easy. So, the speed of operation increased. The yarn experienced less friction. Shape of the yarn guides may be as follow:
- Pig tail
- Slotted type
- Post type
So, yarn guide plays an important role in winding operation. We should be careful during the selection of yarn guide.