Winding efficiency and Faults

Winding Efficiency

Winding efficiency depends on the following factors

1. Spindle or drum speed: the higher the speed the more is the winding efficiency
2. Yarn Count: yarn count is proportional to winding efficiency
3. Yarn quality: if yarn quality increases then winding efficiency increases
4. Worker efficiency: the more efficient the work is the more efficient the winding will be.
5. Humidity: humidity is reciprocal or inversely proportional to winding efficiency.
6. Work load per worker: If the work load on each worker is less then efficiency of winding will be more.
7. Maintenance and over hauling: if the maintenance and over hauling of the machine is not correct then efficiency of winding will decrease.
8. Power failure: if power failure rate increases the winding efficiency will decrease.
9. Creeling time: the more the creeling time the less is the efficiency.
10. Doffing time: the more the doffing time the less is the efficiency.
11. Capacity utilization: when capacity utilization decreases then efficiency increases.

Reasons for lower efficiency

1. power failure
2. improper maintenance and over hauling
3. natural disasters
4. less skilled labor
5. labor unrest
6. shortage of machine parts and raw materials
7. strike
8. maintenance problems

Faults and defects of Winding

1. formation of patches on the yarn
2. incorrect winding speed
3. package is too loss or tight due to tension variations
4. dirty package
5. incorrect shape of package
6. too many knots in yarn
7. excess yarn in bobbin
8. over lapping
9. two end winding
10. mixing of yarn of different linear density
11. unintentional pattern formation during winding
12. dirty yarn
13. poor yarn clearing and snarling