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PP/PE Caps
PP (Polypropylene) and PE (Polyethylene) caps are widely used in packaging for sealing bottles, containers, and other types of packaging. These caps are made from thermoplastic polymers, which are lightweight, durable, and cost-effective. They are commonly used in industries such as food and beverage, pharmaceuticals, personal care, and household products.
Comparison of PP and PE Caps
Property |
PP Caps |
PE Caps |
Rigidity |
More rigid and sturdy |
More flexible |
Heat Resistance |
Higher heat resistance |
Lower heat resistance |
Chemical Resistance |
Excellent resistance to chemicals |
Good resistance to chemicals |
Impact Resistance |
Less impact-resistant |
More impact-resistant |
Applications |
Hot-fill bottles, pharmaceuticals |
Water bottles, squeeze tubes |
Applications of PP and PE Caps
1. Food and Beverage Industry
for hot-fill bottles, condiment bottles, and containers for sauces, syrups, and juices.
for water bottles, milk jugs, and carbonated drink bottles.
2. Pharmaceutical Industry
for medicine bottles, vitamin containers, and liquid medication bottles due to their chemical resistance and durability.
for syrups, cough medicine, and other liquid pharmaceuticals.
3. Personal Care and Cosmetics
for shampoo, conditioner, and lotion bottles.
for squeeze tubes, creams, and gels.
4. Household Products
for detergent bottles, cleaning agent containers, and disinfectant bottles.
for liquid soap dispensers and spray bottles.
5. Industrial Products
Used for industrial cleaning agents and solvents.
6. Automotive and Lubricants
for oil bottles, coolant containers, and other automotive fluids.