New generation reels

Some new generation reels show a different sequence. They first open the nip by moving the parent roll (Fig. 6.79). In order to avoid too much air being wound in an air squeezing element like a small roll or a brush on the parent roll is applied. 

On a new generation reel, where the secondary nip is opened, the next step is to cut the center strip in the open draw after the primary nip with an air nozzle or a small knife. The stripe is then self-threading and the turn-up can be finished as described above. 

A common characteristic of the reds of the new generation is the center drive in the reel spool applied during the whole winding process. Espedally for paper grades with sensitive surfaces the center drive allows one to reduce the nip load and generate suffident roU hardness at the same time. 

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