Characteristics of plastic bottles for medical use

1. Filling is convenient

The diameter of the mouth of plastic bottles for medicinal use is usually designed with the volume of the container plus the appropriate margin.

Plastic bottle neck shape of the cross section of the shape of most semicircle, from the outside look is double fine thread, there are also trapezoidal thread, known as a single thread.

The shape of neck thread of bottle mouth and bottle cap have good compatibility, and the tightness of bottle mouth and cap after applying torque has strong moisture resistance.

A sealed gasket is provided on the bottle cap, and an anti-theft cover is used externally.

The anti-theft bottle cap can provide visible traces of seal damage. Its structure is mainly composed of a ring of small holes along the skirt bottom of the side around the bottle cap to form a broken line.

When twisting the bottle cap, as the corrugated flanging pawl is locked under the convex ring at the bottom of the bottle mouth, the reverse rotation of the cap can be separated from the lock ring along the folding line.

Now the plastic bottle mouth all USES the aluminum foil gasket the electromagnetic induction sealing, has simultaneously moistureproof, the sealing and theftproof performance.

2. High bottle strength

From the longitudinal section anatomy bottles, bottleneck and bottle shoulder, there are two tangent arc radius, and from the point of tangency is divided into two segments of frustum of a cone body of revolution, when the design accurately calculate the bottleneck and the distance from the centerline, neck, shoulder radius arc radius and affect the bottle bottle shoulder shoulder strength and Angle, can ensure the costumes and the storage of drugs and use the bottle will not occur in the process of the shoulder fracture phenomenon.

3. Strong resistance to internal pressure

The medical plastic bottle body is a circular revolving cylindrical body. Excessive thickness of the bottle wall will increase the weight of the bottle body and increase the consumption of raw materials. Meanwhile, the internal stress and shrinkage of the bottle will also increase.

The general requirement is that the wall thickness of the other parts should be kept even, except for a few places where the reinforcement and threads of the bottle are larger than the thickness of the bottle.

In order to improve the barrier property and strength of plastic bottle, the thickness of bottle is generally 1.2 ~ 1.5mm.

Plastic bottle bottom design more use concave bottom or flat bottom double rounded corner structure.

Concave bottom means that the bottom of the bottle is concave into the bottle to form an arch, which can enhance the anti-internal pressure ability of the bottle body and ensure the stability of the bottle body.

4. Reduce the cost of the drug factory

Because the high quality plastic bottles are produced in the purification workshop meeting the requirements of GMP, the cleaning grade is the same as the pharmaceutical factory's filling stage I, and the pharmaceutical factory can directly fill the bottles without cleaning or disinfection, which significantly reduces the production cost of the pharmaceutical factory.