Dos Oil Coated Aluminium foil for Bottle Cap

Last Updated :Mar. 01, 2024

Dos Oil Coated This coating has been carefully designed to ensure food safety and ensure compliance with strict regulatory standards.

Using DOS (Double Oil Treatment) oil involves the process of applying a specialized double layer of oil to aluminum foil. The coating is engineered to form a barrier that prevents material migration between the foil and sealed product. The application of DOS oil is mainly used in the packaging industry, especially bottle caps, to enhance the performance and protective capabilities of aluminum foil.

Dos Oil Coated Aluminium foil for Bottle Cap Features and Benefits

1. Enhanced barrier properties

The main function of DOS oiled aluminum foil is to provide a perfect barrier against moisture, oxygen, light and other external contaminants. This barrier significantly extends the shelf life of packaged products, thus maintaining their quality and freshness over the long term.

2. Improve sealing integrity

The DOS oil coating enhances the sealing integrity of the cap, minimizing the risk of leakage or tampering. This is especially important for sensitive products such as pharmaceuticals, beverages and chemicals, as any compromise of seal integrity can lead to serious consequences.

3. Resistant to corrosion and chemicals

Aluminum foil is inherently corrosion-resistant, and the DOS oil coating further enhances this property. It offers excellent resistance to corrosive substances and chemicals, ensuring the integrity of the packaging remains intact throughout the product's service life.

4.Customizable attributes

Manufacturers can customize the thickness and composition of DOS oil coatings to specific requirements. This flexibility allows them to optimize packaging solutions for a variety of applications, from carbonated beverages to pharmaceutical formulations.

DOS lubricated aluminum cover plate can be divided into 8011 bottle cap aluminum cover plate, 3004 bottle cap aluminum cover plate, 3105 bottle cap aluminum cover plate and 5052 bottle cap aluminum cover plate according to the number of combinations. Aluminum covers are all hard, with hardness between H14-H24, tensile strength between 110-320, and elongation generally not less than 4. The thickness of aluminum cover sheets for PP bottle cap specifications is generally 0.20~43.3mm, with an allowable thickness tolerance of ±0.1%, and a width of 449-796mm.

The production of DOS lubricated aluminum closed plates can be done by hot rolling or continuous casting and rolling, and then cold rolling. The surface of the aluminum sealing plate is smooth without traces, the plate shape is flat, and the unwinding performance is good. Aluminum plates for bottle caps are mainly used to manufacture twist-off anti-theft bottle caps and aluminum bottle caps. The aluminum cover sheet used for bottle caps has a neat cross-section and is free of burrs, cracks, corrosion marks, creases, unevenness and other defects. The surface of the DOS-treated aluminum sealing piece is degreased and clean, and the ear-cutting rate is low. Aluminum plates for bottle caps are widely used in bottle cap packaging for wine, beverages, medical bottle cap materials, cosmetics, etc.

DOS treatment function of bottle cap material

The main function of DOS treatment is to prevent oxidation and scratching. The high-end aluminum closure plate has been chromium plated and DOS treated. The chromium treatment improves the corrosion resistance of the cover material aluminum plate and the DOS lubricated aluminum closure sheet as well as the bonding strength with the coating. The aluminum plate used as bottle cap material has excellent moisture-proof properties, light-shielding properties and high barrier capabilities. It has strong mechanical properties, high explosion resistance, puncture resistance and tear resistance.

8011 aluminum foil is one of the commonly used Dos oil-coated aluminum foils for bottle caps, with a status of H14/H16. The thickness range of DOS lubricated bottle cap aluminum foil is 0.15-0.27mm, and the width range is 330-1000mm. It can be used for wine caps, easy-to-pull caps, pharmaceutical bottle caps, easy-to-tear milk powder caps, etc. Oil-coated aluminum foil for Dos bottle caps combines strength, formability, corrosion resistance, weldability, and aesthetics. Material. Bottle cap aluminum foil treated with Dos has the characteristics of corrosion resistance, non-toxic, high strength, good ductility, etc., and is widely used in the packaging of many daily necessities such as food, beverages, petroleum, chemicals, paints, coatings, aerosols, bottle caps, etc.

Dos oil-coated aluminum foil for bottle caps is generally chromated. The chromated film formed after passivation in chromic acid or chromate solution is not easy to interact with humid air and has strong anti-corrosion ability. Painted chrome plate has high film adhesion and is suitable for making bottom covers of food cans and cupping jars. Chromizing treatment is a common pre-treatment method for aluminum foil used in bottle cap products. A chromium film is formed on the surface of the product through a chemical reaction to enhance the corrosion resistance of the product and the adhesion of the coating.

Oiled aluminum foil for bottle caps is common in daily life. Mainly used for packaging of beverages, alcoholic beverages, and medicine bottles. They have the advantages of good sealing and high safety, and are in great demand in the market. Aluminum bottle caps generally use 1000, 3000, and 8000 series aluminum foil for bottle caps. Since aluminum covers are mostly processed on production lines with a high degree of automation, the performance requirements for materials are relatively high.

Dos Oil Coated Aluminum foil for Bottle Cap Applications

Dos Oil Coated Aluminium foil for Carbonated Beverages Bottle Cap

• Alloy: 8011
• Status: H14 or H16
• Specifications: Typically 0.18 mm thick, DOS oil coated for enhanced barrier properties and sealing integrity.

Dos Oil Coated Aluminium foil for Carbonated Medicine Bottle

• Alloy: 8011 or 8079
• Status: H18
• Specifications: 0.20mm thickness with DOS oil coating ensuring tamper-evident seal and protection from moisture and light.

Dos Oil Coated Aluminium foil for Juices and Non-Carbonated Beverages Bottle Cap

• Alloy: 8011
• Status: H14 or H16
• Specifications: Available in different thicknesses according to specific requirements, with DOS oil coating to extend shelf life and maintain product freshness.

Dos Oil Coated Aluminium foil for Alcoholic Bottle Cap

• Alloy: 8011
• Status: H14 or H16
• Specifications: Typically 0.20mm thick with DOS oil coating for superior barrier properties and resistance to external contaminants.