proportional to the positive pressure resistance moment N, the reaction force is equal to the positive pressure of N Q N. Under the action and reaction of F T traction, woven elastic stretch on both sides, if the elongation per 100mm 0.5mm, ie elongation of 0.5%, then from the ring to the traction roller size of about 1500mm, total elongation of about 7.5mm . Thus, it may generate a few meters per fold. (3) disposal methods traction rollers can be seen from the above analysis, one way is to dispose of the folds loosen the tension rod including parcels conditioning. In fact, there is no need to include parcels conditioning rod conditioning too tight, just to be able to fold flat woven. Do not attempt to go through the conditioning pole pieces, including the width of the woven up big, because even up in the bar at large, including parcels conditioning, after conditioning pole pieces also include recoil to their original size. Disposal of the two sides of the fold approach is to include pieces from the