What materials are commonly used in the manufacture of cosmetic containers and jars, and what impact do they have on the preservation of cosmetics?
Materials commonly used in the manufacture of
cosmetic containers and jars include polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), PET, AS, ABS, etc. These materials have different properties and have different effects on the preservation of cosmetics.
Polyethylene (PE): Polyethylene is one of the commonly used materials for cosmetic containers. It has the characteristics of good toughness, corrosion resistance, and good formability. It is also cheap and easy to process and manufacture. Polyethylene is divided into two types: high-density polyethylene (HDPE) and low-density polyethylene (LDPE). HDPE is harder than LDPE, while LDPE is softer than HDPE.
Polypropylene (PP): Polypropylene is another commonly used plastic container material. Compared with polyethylene, polypropylene is harder and more durable, and has higher transparency, so it is often used to make cosmetic bottle caps and bottles. The advantages of polypropylene are low price, recyclability and strong environmental protection.
Polyoxymethylene (POM): Polyoxymethylene is a polymer material with excellent mechanical properties and chemical stability, so it is often used to make cosmetic bottle caps. It is characterized by good rigidity, high temperature resistance, corrosion resistance, etc.
PET: PET material is an environmentally friendly material with high barrier properties, light weight, non-breaking properties, chemical resistance, and extremely transparent. It can be made into pearlescent, colored, magnetic white, and transparent. It is widely used in filling gel water. The bottle mouth is generally standard 16#, 18#, 22#, 24# diameter, and can be used with a pump head.
AS, ABS: AS has better transparency than ABS and has better toughness.
In general, the manufacturing materials of cosmetic containers and jars have a great impact on the preservation of cosmetics. Different materials have different characteristics, such as corrosion resistance, transparency, hardness, etc. Therefore, when selecting materials for cosmetic containers and jars, the selection should be based on the characteristics and storage requirements of the cosmetics. At the same time, the environmental protection of materials is also one of the factors that need to be considered.