Packing Analysis Unwrapped
Analyzing a polymer laminate by FT-IR microscopy
Our video shows how a food packaging film is checked for its composition. In this case, the EVOH layer is of great importance since it acts as an oxygen barrier that protects the sensitive contents (e.g. food) against aging. Such layers are also used in the pharmaceutical industry to increase the shelf life of drugs.
FT-IR microscopy is able to detect and identify layers down to < 2 µm thickness. It works universally and independently of the polymer type, and both for organic additives and inorganic fillers.
Analyzing a polymer laminate by Raman microscopy
Among some drawbacks, Raman has two main advantages over FT-IR when it comes to multi layer composites: