The tamper evident aluminum ROPP closure is made from high-quality aluminum and includes a food-grade sealing liner. It is suitable for beverage packaging in both glass and PET bottles. The cap body is formed through a roll-on process, offering excellent sealing and leak-proof performance. To ensure product safety, the lower tamper-evident band breaks automatically upon first opening, preventing reuse. These caps are widely used in packaging for mineral water, carbonated drinks, juice, wine, spirits, and more.
Structure of the Tamper Evident Aluminum ROPP Cap with Liner:
ROPP Roll-On Threading Structure: The cap is formed and sealed on the bottling line using a roll-on process that ensures a secure fit.
Tamper Evident Design: Features a tamper-evident ring that breaks upon opening, ensuring the product has not been previously opened.
Liner Material: Typically made of PE, EPE, or TPE to ensure good sealing and leak prevention.
Aluminum Ropp Cap Specifications:
| Diameter | 18mm, 22mm, 24mm, 28mm, 38mm, etc. |
| Material | Aluminum 8011 |
| Weight | Approximately 1.8g – 2.5g (including liner) |
| Type | Roll-On Pilfer Proof Cap |
| Thickness | 0.20mm – 0.30mm |
| Forming Process | Roll-on forming with thread embossed during the sealing process |
| Surface Finishing | Anodizing, UV coating, screen printing, embossing, hot stamping, laser coding, QR codes, etc. |
| Liner Materials | Polyethylene, butyl rubber, or silicone rubber |
| Applications | Suitable for glass or plastic bottles containing mineral water, beverages, syrup, wine, vodka, or health supplements. |
Tamper Evident Aluminum Ropp Cap Specifications Advantages:
Tamper Evident: The design ensures the product has not been opened before purchase. Consumers can confirm product integrity by checking the cap.
Sealing Performance: Liner materials effectively prevent leakage of gases and liquids, extending shelf life—ideal for carbonated drinks, alcohol, and oxygen-sensitive products.
Safety: All materials meet food safety standards, are non-toxic, and safe for direct contact with food and pharmaceuticals.
Aesthetic Appeal: Cap decoration via printing and embossing enhances packaging appearance and market value.
Recyclability: Aluminum is recyclable and environmentally friendly.
Application Fields:
Beverage Industry: Beer, wine, spirits (e.g., whiskey, vodka), carbonated drinks, juices, etc.
Pharmaceutical Industry: Oral liquids, injectables, health supplements, etc.
Food Industry: Olive oil, condiments, sauces, canned food, etc.
Cosmetic Industry: Perfumes, essential oils, etc.
Production process of bottle cap with liner:
| Stamping | Aluminum sheets are stamped to form the cap body. |
| Liner Installation | Liner is inserted and fixed via heat sealing, adhesive, or mechanical methods. |
| Roll-On Sealing | The cap is rolled and sealed onto the bottle neck using roll-on equipment to ensure a tight seal. |
| Tamper-Evident Processing | Tamper-evident features such as breakable bands or tear-off strips are integrated into the cap design. |
