What is the eye drops container made of?

 The eye drops container is composed of a cap, a dropper, and a bottle body, and is a common pharmaceutical packaging for ophthalmic drugs. The material of the packaging plays an important role in maintaining the efficacy of the medicine and protecting the safety during the transportation of the medicine. So, what material is the eye drop bottle made of?

eye drop bottles

Eye drops container is a kind of plastic bottle. Its raw material is mainly low-density polyethylene (LDPE). It is the lightest variety in polyethylene resin. It is milky white, tasteless, odorless, non-toxic, and has no surface. Glossy waxy particles. It has good flexibility, extensibility, electrical insulation, transparency, easy processing and certain air permeability. It has good chemical stability, alkali resistance and general organic solvent resistance. LDPE has been industrialized for more than 70 years. Although with the discovery and development of olefin polymerization catalysts, the variety and output of polyethylene have made great progress, LDPE still occupies an important position, and some pharmaceutical packaging, daily necessities packaging, etc. are used Here comes this raw material.

After adding organic solvent, LDPE is processed by injection blowing process. First, the injection machine injects the molten plastic into the injection mold to form a tube blank. The tube blank is formed on a hollow convex mold with micro holes on the peripheral wall; then it is moved to the blow mold while it is hot; then the mold is closed and passed through the pipe of the mandrel Enter the compressed air to inflate the parison and stick it to the cavity wall of the mold; finally, after holding the pressure, cooling and setting, the compressed air is released and the mold is opened to take out the plastic part.

The eye drops container made of LDPE material is soft, easy to squeeze, and can quickly return to its original shape after squeezing, without creases. Whether it is in terms of the characteristics of the material and the convenience of the patient It is a better raw material for production.

What kind of eye drop bottle is easier to squeeze out

 Eye drops are one of the commonly used drug formulations for ophthalmological diseases, which have direct and quick treatment effects on many ocular diseases. The eye drop bottle is a special packaging for eye drops. The drug needs to be squeezed out of the bottle during administration. There are various materials used for plastic eye drop bottle packaging. Which material is easier to squeeze out the drug?

5ml eye dropper bottle

Common raw materials for plastic bottles include polyethylene (PE), polypropylene (PP), polyester (PET), high barrier (EVOH), etc., among which low-density polyethylene (LDPE) and polypropylene can be used as eye drop bottles. Both of the raw materials for production are non-toxic and tasteless, and can resist corrosion by various acids, alkalis and other solvents. The difference is that low-density polyethylene feels soft and easy to squeeze. Compared with LDPE, polypropylene is harder, less flexible, and fragile at low temperatures. It is generally used in powder bottles or small-capacity liquid bottles.

In terms of ease of use, LDPE material is more in line with the use requirements of eye drop bottles, and will be squeezed without creases, and will return to its original shape. The eye drops are usually administered by the patient themselves. If the bottle body is too hard, it will affect the patient’s experience and make it resistant to the brand of eye drops. To a large extent, no second purchase will be made. In addition, packaging will also have a certain impact on the reputation of the drug.

In general, LDPE eye drop bottles are more convenient than polypropylene in terms of drug delivery experience, and are favored by many eye drop manufacturers.