Applications:
1) Storing aggressive filling materials (e.g., hazardous materials)
2) Improved water-vapor barriers (moisture-sensitive substances)
Advantages:
1) Improved barrier properties compared to monomaterials
2) Allows individual layers with different colorations (e.g., UV protection or company-specific color aspects)
3) Placing barriers in the middle ensures that they do not touch products
Disadvantages:
1) Production waste only reusable to a limited extent within closed circuits, since mill material is not pure
2) Admixtures can be realized in a layer that does not come in direct contact with the product
3) Recycling desirable for cost reasons
