What Are Uses of The 28mm Aluminium Screw Cap

In the field of packaging, the 28mm aluminum screw cap is becoming the "golden partner" of the wine, beverage, medicine and other industries with its excellent performance and wide applicability. Aluminum bottle caps of this size not only carry the sealing and safety of the product, but also redefine the value dimension of modern packaging through material innovation and technological upgrades.

Core Advantages

The core competitiveness of the 28mm aluminum bottle cap comes from the dual breakthroughs in its material properties and structural design.

Lightweight and high strength: Using 8011-H14 or 3003-H16 aluminum alloy, the thickness is only 0.20-0.23mm, the weight is less than 5 grams, but it can withstand an opening torque of more than 200N. This "light and strong" feature saves more than 30% of logistics costs in transportation and warehousing.

Ultimate sealing: The threaded structure formed by the precision rolling process, combined with butyl rubber plugs or silicone gaskets, can achieve a sealing gap of ≤0.01mm, effectively blocking oxygen and water vapor. For example, in wine packaging, the sealing of the aluminum bottle cap can reduce the oxidation rate to less than 0.05%, far exceeding the 0.3% of traditional corks.

High temperature and corrosion resistance: It can withstand 121℃ high temperature cooking for 30 minutes, suitable for hot-filled beverages and oral liquid medicines; after the surface is anodized, the salt spray corrosion resistance time exceeds 1000 hours, meeting the long-term storage needs of cosmetics and condiments.

Multi-scenario application

The standardized size of the 28mm aluminum bottle cap (inner diameter 28mm, full height 18.2mm) makes it a universal choice for many industries.

1. Innovator of wine packaging

Wine and spirits: 36% of the world's wines use aluminum screw caps, and this proportion in the European market reaches 35%. Its anti-TCA contamination characteristics (the contamination rate of traditional corks is about 5%) reduce the global waste of 1 billion bottles of wine each year.

Liquor and beer: Moutai, Wuliangye and other high-end liquors use 28mm liquor bottle cap, and achieve anti-counterfeiting traceability through laser coding and tear-ring design; the beer industry uses the lightweight aluminum cap (40% lighter than tinplate caps) to reduce costs. For example, Budweiser Asia Pacific will increase the use of aluminum caps to 65% in 2023.

2. Guardian of beverages and food

Functional beverages: Red Bull, Dongpeng Special Drink and other products use 28mm aluminum caps with hot filling technology to maintain sealing at 105°C and extend the shelf life to 18 months.

Edible oil and condiments: Luhua, Haitian and other brands use aluminum caps to prevent oil oxidation. Its corrosion resistance ensures that acidic liquids such as soy sauce will not deteriorate after 3 years of storage.

3. Safety barriers for medicine and cosmetics

Oral liquid and injection: 28mm aluminum-plastic combination caps (such as Shanghai Jiuzheng products) achieve aseptic packaging in medical glass bottles, meet GMP standards, and are widely used in antibiotic and vaccine packaging.

Skin care products and perfumes: Estee Lauder, Lancome and other brands use aluminum caps with UV electroplating technology to improve the texture while preventing skin care products from oxidizing and deteriorating.

Original source: https://www.alubottlecaps.com/a/what-are-uses-of-the-28mm-aluminium-screw-cap.html

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