Creels in Sizing

Creel is a platform for placing warpers beam. The function of the creel to allow steady and smooth unwinding of warp yarn from the warpers beam. So that the ends cannot touch or entangle with each other and provides easy withdrawal of yarn from warpers beam.

Only single type of creel cannot give the same beaming efficiency for different types of yarns. There are many numbers of creels which are used for different purposes.

Types of creels:

  1. Over/Under creel

  2. Equitension creel

  3. Inclined creel

  4. Vertical creel

Over/Under creel:

  • This type of creel is used for slashing spun warp yarns of synthetic fibers and cotton.

  • As shown in the figure, the warper beams are arranged in 2 rows, in an alternate manner having different heights. The warp sheet coming out from the first beam passes under the 2 nd beam and then passes over the third beam and this continues, as shown in figure 1.

  • The warp yarn which comes out from first beam experiences more stretch and tension than the warp yarn coming out from the beam located near the size box.

  • This problem can be overcome by mounting 2 creels and one for each of the 2 size boxes. If there 10 beams, then 5 beams mount on creel one and another 5 beams mount on creel 2.

  • Depending upon the number of size boxes used, the threading pattern of warp from the beams varies in this creel.

  • And for heavy to medium construction fabrics 2 size boxes are used where all top beams in the creel threaded over and under then enter into first size box, as shown in figure 1.1. all bottom beams in the creel threaded over and under and then enter to the second size box, as shown in figure 1.2.

  • From this type of arrangement, over and under movement of warp sheet can be reduced.

Equitension creel: