TURN-UP METHOD AND TURN-UP DEVICE FOR REEL-UP FOR REELING OF FIBER WEBS

The invention relates to a turn-up method for a reel-up for reeling of fiber webs, a fiber web travelling in direction (S) is cut by means of two water jet nozzles moving substantially in transverse direction in relation to the travelling direction (S) of the fiber web (W), in the method two cuts (C1, C2) are formed by two water jet nozzles starting their movement at latest from edges of the fiberweb (W) and moving with cutting pressure of the water jet nozzles on towards center area of the fiber web (W) and at the center area of the fiber web (W) the cuts (C1, C2) cross or meet and a substantially V-shaped tail end (V1) to the fiber web (W) is formed, after the cuts (C1, C2) of the tail end (V1) of the fiber web (W) are finished the cutting by the water jet nozzles and the movement of the waterjet nozzles is stopped and after the stop the return movement of the water jet nozzles and the cutting by the water jet nozzles is started again from the center area of the fiber web (W) and the water jet nozzles are m