Abstract: A device for dispensing adhesive tape (5), provided with a guide roller (8) engaging the agglutinant side of the adhesive tape, which guide roller has a teeth-shaped axial profile, the height (H) of the teeth (14) being at least 0.5 mm and preferably at least 1 mm and the angle (.alpha.) included by the teeth flanks (15) and a radial plane being not greater than 60.degree. and preferably 45.degree..