Semi open shed

semi open shedThis is formed under both open & closed principles. Here a stationary bottom line is refined. The top line is movable one after inserting a pick, the top lines moves threads towards the bottom line.

Merits:

  1. Strain upon warp is low.
  2. Required minimum time of shed.
  3. Loom can run at high speed.
  4. It is suitable for fancy & compact fabric.
  5. More production.
  6. Less power consumption.

Demerits:

  1. Strain on yarn is not equally distributed.
  2. Difficult to find breakage yarn.
  3. Leveling the healds is difficult.

Uses:

  1. Double lift jacquard.
  2. Double lift dobby.

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