DETAILS OF THE ROLL AND BODY OF THE ADHESIVE FILM

Abstract

The invention relates to a coil and body of adhesive film capable of eliminating adhesion and jamming and preventing shedding. The coil consists of: a coil core (3) around which the adhesive film (2) is coiled; a pair of coil flanges (4) arranged on both sides of the coil core (3); and ridges (5) made on the inner surface (4a) of the coil flange (4), protruding from the inner surface (4a), and extending from the center toward the circumferential edge of the coil flange (4), such that in the ridge (5), the width of the detachment tip (W1) in contact with the adhesive film (2) is narrower than the width of the ridge foot (W2) in contact with the inner surface (4a) in the cross-sectional drawing.