In its broader sense, peeling means removing the outer layer or shell from an object. This is often done using a blade or a scraper. The peeling of fruit and vegetables is certainly the most common form. Coniferous trees for example are peeled (bark removed) after felling in order to prevent infestation by pests.
In the case of a peeling procedure in the context of a bond, a flexibly bonded layer is peeled off the subsurface. Here, the film can be removed at an angle of 90° or 180°.