This invention concerns a process and device for producing anti-theft elements for electronic anti-theft securing of articles. The anti-theft elements are made of at least two layers. The invention also concerns a strip material made using the process. The aim of this invention is to present a simple, economical process, a corresponding device for producing a strip material and a strip material for securing articles electronically which is made by the process. As for the process of this invention, the aim is achieved in that segments of a predetermined length of a second web of material are fed and applied on a first continuous web of material perpendicular to the running direction said first web of material.