In a transdermal therapeutic system (TTS) (5) comprising a backing layer (1), a polymer layer (2) containing silicone adhesive in contact with the backing layer and a removable protective layer (3) in contact with the polymer layer, the contact side of the backing layer is finished with an adhesion-promoting layer (4) obtained by siliconization. Independent claims are also included for: (1) the production of a backing layer for use in a TTS, by siliconizing the surface to be contacted with a polymer layer provided with microreservoirs； and (2) the use of a siliconized backing layer in a TTS.본 발명은 배면 층(1), 접착제 층(4), 중합체 층(2) 및 제거가능한 보호 층(3)을 포함하는 경피 치료 시스템(5)에 관한 것이다. 접착제 층(4)은 오가노실록산 층이고, 실리콘화에 의해 배면 층(1)에 부착된다.
