Center close shed

Center close shed is produced by imparting an upward movement to those threads which are to from the top line & downward movement to the threads which are to form the bottom line, then after inserting a pick, both the lines meet the center. Here warp threads move in an upward & downward direction from a center line.

Merits:

1. Power consumption is low.
2. Wear & tear of loom parts is low.
3. Less time consumption.
4. High production.
5. Equal tension on warp yarns.

Demerits:

1. Since every thread is moved to form each shed, strain on yarn is more.
2. Beat-up takes place in the closed shed condition.
3. Possibility of yarn breakage due to rubbing.
4. Possibility of weft being move backward.

Uses:

1. Tapper loom.
2. Single lift jacquard loom