Polyethylene (PE) packaging
Polyethylene is one of the most widely used polymers. Whether it is white or coloured, it is available in a wide variety of formulations, sturdy and moisture-proof. HDPE and LDPE are the most widely used plastics.
TYPES OF PE AND THEIR USES
High density PE (HDPE - plastic # 2)
The main applications of HDPE are rigid products: films, soft plastics, bags, bottles (detergents, cosmetics), bottles, Tupperware-type boxes, bottles of laundry soap and shampoo, containers of milk or juice, shopping bags, boilers and medicine bottles.
Properties
- Rigidity, strength, opacity, impermeability to chemicals, moisture and gases (e.g., bottles of detergent or bleach)
- Cold resistance (e.g., ice cream containers)
- Allows the manufacture of bulky containers (e.g., 4-litre bottles)Flexibility and strength (e.g., shopping bags)
- Low density PE (LDPE – plastic # 4)
The main applications of LDPE are flexible products: bags, films, bags, garbage bags, adhesive tape, flexible containers (ketchup, moisturizing creams), etc.


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