The plastic packaging material for cosmetics generally uses PET, which is an environmentally friendly material with high barrier properties, light weight, non shattering properties, chemical resistance, and strong transparency. It is usually used for injection molding of cream bottles, bottle caps, stoppers, gaskets, pump heads, and dust covers with thicker walls in cosmetics containers;
PET blow molding is a two-step process, with injection molding for the tube preform and blow molding for the finished product packaging.
Others, such as lotion bottles and washing bottles with thinner container walls, are blow bottles. Bottle mouths are generally standard 16 #, 18 #, 22 #, and 24 # calibers
Advantages of plastic packaging materials
1. Lightweight and with good mechanical performance
2. Good chemical stability and excellent optical performance
3. Good processing performance and decorative properties
4. Appropriate barrier and permeability
5. Good hygiene
Disadvantages of plastic packaging materials
1. Low strength and hardness
2. Poor heat and cold resistance
3. Materials are prone to aging
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