The invention relates to a method for producing a multiplicity of disposable incontinence diapers (2) having a diaper main part (4) and, joined thereto, front and rear diaper side parts (22, 20), said method having the following method steps: feeding and conveying of an endless diaper main-part web (50) feeding of an endless diaper side-part web (21) to the separation and application station (24) singulating the disposable incontinence diapers (2) by separating the diaper main-part web (50) transversely relative to the first longitudinal direction (18), the curved edges of the longitudinal portions (46a, 46b), after separation from the diaper side-part web (21), being contoured in such a way that, after the first and second longitudinal portions (46a, 46b) have been secured to the first and second regions (56a, 56b) of the diaper main-part web, each rear diaper side part (20) has a lower edge (65) which has a convex portion, and each front diaper side part (22) has an upper edge (66) which has a concave portion.