High-end wine closures often adopt a composite solution consisting of an aluminum shell combined with a PE liner. The food-grade PE material is non-toxic, resistant to low temperatures and corrosion, and fully compliant with safety standards for alcoholic beverage packaging. The foaming process of the liner enhances sealing performance, effectively blocking oxygen infiltration and delaying the oxidation of the wine.
HAOMEI Aluminum produces premium aluminum twist-off caps, integrating offset printing and hot stamping techniques to achieve both aesthetic appeal and excellent sealing performance, catering to the long-term storage requirements of fine wines.
Compared to traditional cork stoppers, the aluminum cap with a PE liner provides greater stability and easier opening, minimizing quality risks caused by cork aging or crumbling.
What is a PE Liner?
PE liners feature a multilayer structure and are retained inside the cap during use. The top and bottom layers of the liner are made from solid low-density polyethylene (LDPE), with a low-density foamed core in the middle. This structure ensures compatibility with a wide range of products. These liners offer excellent chemical resistance against acids, alkalis, solvents, alcohol, oils, household cosmetics, and water-based products.
They also provide low moisture transmission rates, odor resistance, and do not alter the taste of the product.
Many PE liner plastic closures are made from polypropylene, a stable, chemically resistant, and easily moldable plastic. Polypropylene plastics have high impact strength and a naturally smooth, slightly glossy surface without the need for additional finishing.
Specifications of Wine Aluminum Screw Caps
| Product Name | Wine Aluminum ROPP Cap |
| Size | 30×60 mm, 30×44 mm, customizable |
| Material | Aluminum |
| Color | Available in multicolor printing |
| Liner Options | PE liner, EPE (expanded polyethylene) liner, tin foil liner |
| Decoration | Top: Offset printing, embossing and knurling, UV printing, hot stamping, silk screen printing Side: Multicolor offset printing, embossing, knurling, UV printing, hot stamping, silk screen printing |
| Feature | Tamper-evident |
| Logo | Custom logo printing available |
| Sample | Available |
| Packaging | Standard export cartons/pallets, or customized according to your needs |
Performance Advantages of Aluminum Tamper-Proof Caps with Liner
Excellent Sealing Performance: The PE liner is soft and pressure-resistant, minimizing oxygen ingress, preserving wine aroma and flavor, and extending shelf life.
Safe and Reliable Materials: Food-grade PE material is safe, odorless, and chemically stable with wine, complying with international standards for food-contact materials.
Easy Opening, Better Experience: The aluminum cap combined with a PE liner allows easy manual opening without the need for specialized tools, enhancing the consumer experience.
Exquisite Craftsmanship to Elevate Brand Image: The caps can be customized with various decorative processes, logos, and colors, boosting visual appeal and brand recognition.
Eco-Friendly and Recyclable: Both the aluminum and PE liner are recyclable, supporting sustainability initiatives and enhancing the brand's environmental image.
Production Process
Aluminum Coil → Color Coating → Printing → Cap Stamping → Post-Printing → Liner Insertion (or Aluminum-Plastic Lamination) → Packaging
HAOMEI Aluminum is a large-scale bottle cap processing manufacturer, specializing in the production of aluminum tamper-proof caps with linings, suitable for various types of wine, including still wine, sparkling wine, whiskey, vodka and high-end limited edition wines. A variety of specifications and sizes (such as 30×60mm, 30x35mm, 30×44mm, etc.) are available to meet different bottle types and market needs. Factory direct sales, preferential prices, sample provision, and short delivery time.
