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What Are Glass Bottle Cap Dimensions
Jun 03, 2025 17:48:37
In daily life, glass bottle caps can be seen everywhere, from beverage bottles to seasoning jars, they silently guard the quality and safety of the contents of the bottle. These seemingly ordinary small objects actually have a lot to learn in terms of material and size.
Common materials for glass bottle caps
Aluminum plastic caps
Aluminum-plastic composite bottle cap is an innovative product that combines aluminum and plastic. It is usually based on plastic, with a layer of aluminum foil on the surface or inside. This combination gives full play to the advantages of the two materials. The plastic part gives the bottle cap good toughness and chemical corrosion resistance, and can adapt to contents of different pH values; the aluminum foil layer enhances the sealing and barrier properties of the bottle cap, and has a stronger shielding effect on oxygen, light and odor.
Aluminum-plastic composite bottle caps are often used for products that require high storage conditions, such as health products, cosmetics and some high-end foods. For example, the use of aluminum-plastic composite bottle caps for vitamin capsule bottles can not only prevent the drug from becoming ineffective due to moisture, but also prevent the loss of nutrients due to external light exposure.
At the same time, the aluminum plastic cream cap is also more textured and beautiful in appearance. Through printing, hot stamping and other processing processes, it can greatly improve the packaging grade of the product.
Aluminum bottle caps
Aluminum bottle caps have become a popular choice in the market due to their excellent performance. Aluminum is light in texture and has a density of about 2.7g/cm³, which makes aluminum bottle caps easy to transport and open, greatly reducing logistics costs and the difficulty of use for consumers.
It has good ductility and plasticity, and can be made into various complex shapes through stamping, stretching and other processes. Whether it is a simple graphic design or a bottle cap with three-dimensional patterns and text, it can be easily achieved.
The sealing performance of aluminum bottle caps is also very good. It can effectively block air, moisture and microorganisms, prevent the contents in the bottle from oxidation, moisture or deterioration, and is widely used in the packaging of products such as wine, beverages, and medicines.
Taking red wine as an example, aluminum bottle caps can not only prevent air from entering and affecting the quality of the wine, but also avoid the pollution problems that may be caused by corks, so that the wine can maintain a mellow taste. In addition, aluminum has good recyclability and a high recycling rate. It conforms to the current environmental protection concept and is a sustainable packaging material.
Common sizes of glass bottle caps
Glass bottle cap dimensions are various, , mainly determined by the caliber of the glass bottle and product requirements. Common sizes include 18mm, 20mm, 24mm, 28mm, 33mm, etc.
18mm and 20mm caps are small caps, usually used for oral liquid bottles, eye drops, small-sized condiment bottles, etc. These caps are small and exquisite, easy to accurately control the pouring amount, and also convenient to open and close with one hand.
18mm and 20mm caps are small caps, usually used for oral liquid bottles, eye drops, small-sized condiment bottles, etc. These caps are small and exquisite, easy to accurately control the pouring amount, and also convenient to open and close with one hand.
24mm and 28mm caps are the most widely used sizes, suitable for most beverage bottles, mineral water bottles, jam bottles, honey bottles, etc. They are of moderate size, which can not only ensure a good sealing effect, but also provide sufficient gripping area for consumers to open.
Bottle caps of 33mm and above are large caps, commonly used for canned bottles, large-sized sauce bottles, edible oil bottles, etc. These products have large capacity and heavy contents, and large bottle caps can provide stronger sealing and load-bearing capacity to ensure that there will be no leakage during transportation and storage.
Original source: https://www.alubottlecaps.com/a/what-are-glass-bottle-cap-dimensions.html
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