Cosmetic packaging is a container and material used to protect cosmetics, facilitate storage and transportation, and promote sales during production, transportation, and sales. The primary packaging of cosmetics is the packaging container material that directly contacts the cosmetics. Cosmetic packaging is made of metal, glass, ceramic, plastic, rubber and other materials, and plastic is currently the most widely used cosmetic packaging material. More eco-friendly paper containers are still in rare use for cosmetics inner packaging.
At present, commonly used plastics are HDPE, PET, PP, PVC, PS, PMMA and other materials. When choosing plastic as the primary packaging, stabilizers, antioxidants, plasticizers and other additives are added during processing to meet performance requirements, and adhesives are also used in the production of multilayer composites. The existence of these substances will bring potential risks to the use of plastics. In addition, because the composition of cosmetics is very complex and contains a large amount of alcohol, acid, protein and oil, it has a certain interaction with plastics. For general cosmetics, the shelf life and use time are as long as 1 to 2 years.
Prolonged contact between cosmetics and plastics may result in the migration of monomers, additives, volatiles, harmful substances from plastics, causing cosmetic pollution and harmful to the human body. Also possible chemical reactions between cosmetics and plastics would compromise the performance of cosmetics. Decrease the stability and quality of cosmetics and cause deterioration. Therefore, when using plastic products as packaging materials for cosmetics, it is necessary to consider the safety and security of plastic packaging.
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