Introduction to common materials for milk packaging
1. Plastic packaging
Plastic packaging is the most common milk packaging material at present, such
as polyethylene (PE), polypropylene (PP), polylactic acid (PLA), etc. It is
light, not easy to break, and can effectively isolate air, moisture, etc.
However, plastic packaging has a great impact on the environment, causing the
accumulation of plastic waste and environmental pollution, and the decomposition
of plastic waste takes a long time, and the impact on the environment is
relatively long.
2. Paper packaging
Paper packaging is also a common material for milk packaging. Its main
features are environmental protection and degradability. It can be naturally
decomposed in the environment in a short time after use, and will not cause
pollution to the environment. However, paper packaging does not have the oxygen
barrier and impermeability of plastic packaging, and milk is easily affected by
external factors and deteriorates.
3. Glass packaging
Glass packaging is a very environmentally friendly packaging material. It
will not pollute the environment and is easy to clean and reuse. However, glass
packaging is heavy and easy to break, so safety should be paid attention to
during transportation and storage.
4. Aluminum packaging
Aluminum packaging is also gradually being used for certain specific
occasions, such as vaccine preparations and infant formula milk powder. Aluminum
packaging has the characteristics of light resistance, moisture resistance, good
air tightness, etc., and can effectively prevent external substances from
contaminating the contents of the package. However, due to its high cost,
aluminum packaging is relatively rare in milk packaging.
In summary, different milk packaging materials have their own advantages and
disadvantages. When using and handling milk packaging, we need to flexibly
choose according to their characteristics, and pay attention to environmental
protection when handling to avoid environmental pollution and waste of
resources.
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