Introduction to the production process of eye drops bottle

 Plastic bottles play an important role in people's production and life. No matter what the bottle is, it must be formed and processed, and our common eye drop bottles are no exception. The eye drop bottle is composed of a bottle body, a bottle cap and a dripper. What kind of production technology is used to process the bottle with this structure?

eye drop bottles

Eye drop bottles are generally made of soft low-density polyethylene raw materials through injection-blowing technology. The capacity ranges from 5ml-15ml. First, the injection machine injects the molten plastic into the injection mold to form a tube blank. The microporous hollow punch is formed; then it is moved to the blow mold while it is hot; then the mold is closed and compressed air is introduced from the pipe of the mandrel to inflate the parison and stick to the cavity wall of the mold; After holding pressure, cooling and shaping, the compressed air is released and the mold is opened to take out the plastic part. This process has the following characteristics:

1. The product has exquisite appearance, accurate size, uniform wall thickness and no flash, and the production of parts does not require secondary processing;

2. Plastic products are made by one-time blow molding of injection moulds, with no waste at the mouth and bottom of the bottle, and the mouth is flat and has good sealing performance;

3. The injection parison has a bottom, so there is no split seam at the bottom of the plastic part, which has high strength and high productivity. It is mostly used for mass production of small plastic parts.

The eye drop bottle produced by the injection-blowing process has good sealing properties and a more high-end appearance. This process is also used in the processing of small refined containers and wide-mouth containers such as cosmetics, daily necessities, food and pharmaceutical packaging bottles.

Material is very important when choosing eye drop bottles

 As an important part of drug circulation, pharmaceutical packaging plays an important role in protecting drug safety. For eye drops with high-risk routes of administration, the importance of packaging is particularly important. How to choose a high-quality eye drop bottle, first of all, we must start with the material.

eye drop bottle

With the popularization of electronic products, the resulting market share of ophthalmic drugs has continued to increase, and with the improvement of people's health awareness, attention to drug packaging has also increased. The material of pharmaceutical packaging is the primary consideration when choosing eye drop bottles. The eye drop bottle is used to squeeze the bottle body to achieve eye administration. If the material is too hard, it will not be able to squeeze out, or the amount of medicine will exceed the standard due to excessive force, resulting in waste.

Secondly, as a medicine packaging material, the raw materials of the eye drop bottle must be non-toxic, tasteless, and resistant to most acids and alkalis to ensure that the medicine and the container will not react. Of course, this needs to be proved through actual tests.

In summary, the material of the eye drop bottle is related to whether the eye drops are used smoothly and conveniently, and also related to the safety of drug storage. At present, the eye drop bottles on the market mostly use low-density polyethylene (LDPE) raw materials. Compared with high-density polyethylene, this raw material has good flexibility, resistance to corrosion by most acid and alkali solvents, and will not be squeezed. It produces creases and is a good packaging material.