We often talk about "barrier properties" on our company blog, and this time, we'd like to introduce a method for visualizing the oxygen barrier performance of our products. This method was unveiled at our internal MK Presentation (our QC Circle Activity Presentation) in April 2025. What Are Barrier Properties? Barrier properties refer to a material's ability to block gases, moisture, and odors. For example, when food is stored in a container with oxygen barrier properties, oxidation can be prevented, extending the shelf life and helping reduce food waste. However, even if a pouch container itself has barrier properties, oxygen can ...