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Sealing sealability of medicinal plastic bottles

Aug 30 , 2018

The medicinal plastic bottle improves the sealing of the mouth part and increases the moisture blocking effect. This is mainly determined by the selection of the sealing method and the design of the bottle mouth and the bottle cap. The bottle mouth and the bottle cap cooperate with each other. The external thread of the mouth and the internal thread of the cap enable the sealing of the bottle mouth. If the flat pressure seal is locked with the cap, the flat surface of the bottle mouth and the inner surface of the bottle cap will be sealed (such as rubber, cardboard, etc.) Pressing the contact to achieve the sealing effect.


Sealing sealability of medicinal plastic bottles

desiccant spiral caps


The side wall seal is that with the closure of the cap, the cap will be made into a inverted cone or olive-shaped inner plug (which may be separate or integral with the cap) to press the inside of the bottle mouth. Sealing is achieved by an interference fit between the size of the inner plug and the inner diameter of the mouth of the bottle, regardless of the quality of the sealed cap and the fit with the finish.

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