Cosmetic packaging is in the production, transportation and sales process for the protection of cosmetics, convenient storage and transportation, to promote sales and the use of containers and materials, cosmetics primary packaging is in direct contact with the cosmetic packaging container materials. Cosmetic packaging has metal, glass, ceramic, plastic, rubber and other materials, and plastic is the current use of assorted cosmetic packaging materials.

At present, the commonly used plastics are HDPE, PET, PP, PVC, PS, PMMA and other materials. When choosing to use plastics as primary packaging, stabilizers, antioxidants, plasticizers and other additives will be added during processing to meet the performance requirements, and adhesives will also be used in the production of multilayered composite materials, the presence of which poses a potential risk to the use of plastics. In addition, due to the complexity of the composition of cosmetics and contains a large number of alcohols, acids, proteins and fats, which has a certain interaction with the plastic, and for general cosmetics, its shelf life and the use of time assortment up to 1 ~ 2 years.

Cosmetics and plastic for a long time contact may lead to plastic monomer, additives, volatile substances, harmful substances and other migration caused by cosmetic contamination and harmful to the human body, or cosmetic substances and plastic within the chemical reaction makes the plastic performance deterioration, so that the stability and quality of cosmetic deterioration. Therefore, when using plastic products as packaging materials for cosmetics, we need to consider plastic packaging safety.