The airtightness of body lotion aluminum-plastic combination cover

　　 body lotions are mostly packaged in brown cosmetic glass bottles, with aluminum-plastic combination lids to ensure the quality of the products. However, the aluminum-plastic combination cap is not used alone. There are still rubber plugs or gaskets between the aluminum bottle cap and the medicine to seal and isolate the body lotion. The rubber plugs and gaskets in the aluminum cover are used as materials for two different direct products, and the country independently issues registration certificates for pharmaceutical packaging materials. According to this management, pharmaceutical manufacturers should purchase from legal companies and use them in the filling room. At present, the general practice is that pharmaceutical companies have the need to directly purchase aluminum caps that have been assembled with rubber plugs (pads). According to market demand, pharmaceutical packaging material manufacturers provide aluminum caps of body lotion with inner plugs of different materials. (Pad), there are latex, silicone rubber, etc., so the assembly process of the inner plug and the aluminum cap is actually completed in the body lotion bottle cap manufacturer. This aluminum cap is already a composite product of two pharmaceutical packaging materials when it leaves the factory.

The practicality of body lotion bottle caps on various products

In theory, the bottle mouth and the bottle cap are sealed by the threaded contact between each other. Of course, the larger the area between the screw thread and the bottle mouth, the better the degree of sealing. However, if the mouth of the bottle is shortened, the cap of the body lotion will also be shortened. Correspondingly, the contact area between the thread and the mouth of the bottle is also reduced, which is not conducive to sealing. Therefore, after complex tests (such as drop test, transportation test, etc.), our company now has excellent bottle mouth and cap thread design, which can meet the sealing requirements of liquid products.

Our company integrates the production, processing and sales of body lotion cosmetic glass bottles and aluminum-plastic composite lids, and is guided by market demand to continuously improve product quality.

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