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.


  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.


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


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


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