Abstract: A cleaning device (10; 110; 210), in particular for cleaning hook-and-loop fasteners, includes a plurality of projections (16; 116; 216) which project inclined from a surface (13; 113; 213) of the cleaning device, such that between the projections and the surface (13; 113; 213) there is formed a mouth (17) respectively, the cross-section of which is tapering in an xz-plane from a mouth opening (B, D) in a sharp angled manner towards a vertex (C) wherein the mouth opening (B, D) includes an angle (?) in the xz-plane of 10 to 40° with the vertex (C) as center of the angle (?).