Plastic medicine bottles can be made of PE, PVC, and PET materials. Polyethylene resin is generally colorless, odorless, has low water absorption and strong cold resistance. It is a commonly used plastic in oral drug packaging. High-density polyethylene is a second-generation polyethylene. Like low-density polyethylene, it has good chemical stability, cold resistance, wear resistance, and moisture resistance. It is stronger than low-density polyethylene and has slightly better oil resistance. Medical plastic bottles are generally made of high-density polyethylene. Generally used as PVC packaging materials or containers for medicines or food, as well as the pellets used, vinyl chloride monomer is strictly controlled, generally ≤1ppm. PET is a better plastic for manufacturing beverage and condiment packaging bottles, and it is also a plastic variety for manufacturing plastic packaging bottles for oral liquids such as syrups. The outer single film of solid oral preparation packaging bottles, blister packaging molding materials, and composite films for strip packaging is often made of PET.
Capacity of medical plastic bottles: Due to the particularity of pharmaceutical packaging and medicines, medical plastic bottles range from a few milliliters to 1000 milliliters. The shapes are mostly round, including square, oval, etc. The inner wall of medical plastic bottles is in direct contact with medicines, and the bottle material needs to meet the requirements for medicine packaging to ensure the safety of medicines.