pins 15 is retained in a guide track 17 and can be displaced within the guide track 17 at a right angle to the running direction of the ribbons 23 by displacing the carrier 16 the ribbons 23 of the ribbon bundle 24 can be adjusted in relation to the position of the cutting tips 29 on the circumference of the fibrillation roller 10 in particular it is possible to implement symmetrical cuts by means of the cutting tips 29 in the ribbons 23 in particular minimum spacings at the edge regions can be ensured in the ribbons by this means in order to obtain a defined wrapping of the ribbon bundle 24 on the circumference of the fibrillation roller 10 two guide rollers 20 1 and 20 2 are provided to guide the intake and uptake of the ribbon bundle 24 after the fibrillation and stretching the ribbons 23 are fed to a crimping device 12 and a coiling device 18 the crimping device 12 as well as the coiling device 18 has numerous texturing means 13 and coiling stations 19 for texturing the ribbons individually or collectively and for coiling them on spools for this it is possible to consolidate the ribbon bundle 24 individually or in groups by means of a guide rail 11 with the exemplary embodiment depicted in fig1 3 a grass yarn is produced which can already be.