Analysis of food container packaging: Observation of the layer composition of plastic containers.

With the morphology observation techniques developed through SEM so far, it is possible to observe the layer composition of food container packaging materials!!

The container for solid roux has a multi-layer structure due to the need for food preservation. By observing the cross-section of such food containers with an electron microscope, the layer composition can be clarified. It was found that a commercially available solid roux container has a seven-layer multi-layer structure with a thickness of approximately 3μm to approximately 40μm, as determined by FE-SEM observation. Based on this, further material analysis (＊1) was conducted using FT-IR and Raman analysis, allowing us to understand the materials of each layer. Additionally, the preservation properties of the container can also be assessed through measurements of oxygen permeability and water vapor permeability (＊2). *For more details, please download the PDF or feel free to contact us.

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