- At warping, the goal should be to avoid missing ends. Number of thread breakages should not exceed seven per 10 million meters. This can be achieved by ensuring a top quality yarn package and by following the warping process parameters mentioned below :
- Reliable stop motion on creel and on warping drum, so that broken ends are traceable for knotting.
- Minimum wobbling of warping beams.
- Uniform selvedge with good flanges.
- Yarns should by preferably warped on spindle driven machines to avoid thermal damage due to abrasion. Warping machines such as Benninger or Hacoba are preferable. With drum driven warpers such as the BC Warper, the following precautionary measures are to be taken :
- A) Frictional drum should be kept in a polished state.
- B) Brake should be very efficient.
- C) Aluminium cast flanges should be used to get faulteless selvedges.
- D) Breakages rate should not exceed 0.3~0.5 breaks per 1000 m / 500 ends.
- E) For wider width looms, wider war ping machines are preferred.