The advantages of plastic oral liquid bottles compared to glass bottles

Oral liquid is a common drug dosage form, with the characteristics of fast absorption, rapid effect, and easy acceptance by patients. The packaging of this dosage form is generally plastic oral liquid bottles or glass bottles. Due to different materials, these two types of packaging also differ in production and function.

HDPE syrup bottle with crc cap

Glass bottles are an earlier form of packaging for oral liquids. Glass materials have good transparency, but this material needs to go through complex processes such as cleaning and drying during production, and it is very easy to break. The color of the bottle is similar to that of the oral liquid. Broken glass needs to go through processes such as cutting during the production process. Glass pieces can easily mix into the oral liquid, which brings certain medication risks to patients and will also have an adverse effect on the brand image of pharmaceutical companies.

Plastic oral liquid bottles are generally produced with polypropylene (PP) raw materials, which are translucent materials. This raw material has good high temperature resistance and can resist corrosion from most acid and alkali solvents. Compared with glass bottles, plastic materials are easier to process and do not require complex procedures such as cleaning and drying, which reduces the noise of bottle unscrambling. On the other hand, polypropylene has good mechanical properties and is not easy to break, which can reduce the transportation costs of enterprises.

28mm child resistant cap for liquid

In addition, the polypropylene screw cap, as a special cap for plastic oral liquid bottles, has a unique inner and outer double-layer structure design. It needs to be pressed down and rotated to open, effectively preventing children from accidentally ingesting medicines. Its gasket material is diverse, such as low-density polyethylene, silicone, aluminum foil heat seal, etc., which can be selected according to the characteristics of the medicine to ensure sealing and safety. This kind of cap not only improves the sealing of the package, but also enhances the safety of the medicine.

PP 28mm cap with gasket

Overall, compared with glass bottles, plastic oral liquid bottles have many advantages in terms of material performance and processing flow. Polypropylene materials are widely used in solid drug packaging, food packaging and other fields. As the performance of polymer materials continues to be explored, its application range will continue to expand.