Transdermal therapeutic system with an overtape comprising two adhesive layers

A transdermal therapeutic system comprising

• a) a release liner,
• b) a core comprising
• b1) a polymer matrix layer containing an active ingredient and
• b2) a separating layer
• and
• c) an overtape comprising
• c1) a pressure-sensitive adhesive layer and
• c2) a backing layer
• wherein the overtape c) and the release liner extend beyond the core at all sides of the core, wherein the pressure-sensitive adhesive layer comprises a first layer which is in contact with the backing layer and comprises a first pressure-sensitive adhesive polymer, and a second layer which is in contact with the first layer on one side over the full surface area and with the release liner on the other side and comprises a second pressure-sensitive adhesive polymer, wherein the second pressure-sensitive adhesive polymer is non-crosslinked polyacrylate and the first pressure-sensitive adhesive polymer is a crosslinked polyacrylate that has a lower adhesiveness than the second pressure-sensitive adhesive polymer.