In this work, peel tests inside the chamber of an ESEM (in situ peel tests) are described with heat-sealed test specimens of packaging systems made of multilayer films that simulate different flexible packaging types, according to the packaging line used. The in situ peel tests provided evidence to describe the influence of three different main aspects of the packaging process in relation to the opening behavior of the sealing packages. The investigated aspects are the peel angle, the alignment angle between the orientation of the multilayer films and the seal, and the bulge formation as a consequence of inadequate sealing parameters. In situ peel tests enabled the differentiation between peel angle and local (micro) peel angle, which results from the overall stiffness of the multilayer structure film. Alignment angles of 90° and 45° were found to produce similar opening forces. Images showing the formation of various new local micro fissures on new planes during the in situ peel test explained how the opening force can be dramatically increased during the tearing of two sealed multilayer films.

在这项工作中，根据所使用的包装线，使用由多层薄膜制成的包装系统的热封测试样本描述了 ESEM 室内的剥离测试（原位剥离测试），模拟不同的软包装类型。在现场提供的证据剥离试验来描述相对于密封包装的开启特性的包装过程中的三个不同的主要方面的影响。所研究的方面是剥离角、多层膜取向与密封之间的排列角以及由于密封参数不足而导致的凸起形成。就地剥离测试能够区分剥离角和局部（微）剥离角，这是由多层结构膜的整体刚度引起的。发现 90° 和 45° 的对齐角度会产生类似的打开力。原位剥离试验期间在新平面上形成各种新的局部微裂缝的图像解释了在撕裂两个密封的多层膜期间打开力如何显着增加。