What Are Uses of Aluminum Bottle Cap Materials

Aluminum’s barrier properties are the primary reason it is used in PP and ROPP caps to prevent food spoilage. Blind taste tests by wine experts have proven that aluminum screw caps preserve wine more consistently than cork stoppers without adversely affecting the quality of the wine. The Pre painted aluminum sheet are often used for making wine bottle caps.

In addition to the wide variety of diameters and sizes (according to product type, production bottle and customer's specific needs) caps, high aluminum bottle caps provide sufficient space for cap printing and bring more product marketing possibilities to manufacturers.

The wine bottle caps are composed of neutral material (aluminum) and a new generation of inner pads, which effectively reduces oxygen and other potential oxidants, ensuring perfect sensory quality of the product and eliminating the risk of contamination.

These characteristics form the basis for the increasing success of this type of wine cap. It is favored not only in Central European, Northern European, American and Asian markets, but also in countries with long winemaking traditions such as Italy, France and Spain.

Aluminum caps can be divided into two categories: high-gloss surface bottle caps and silk-surface bottle caps. The former is treated with a special process and the surface of the bottle cap is as bright as a mirror. Coupled with surface hot stamping technology and the combination of silk screen printing and pad printing, the overall effect and anti-counterfeiting level of the aluminum caps can be significantly improved. The latter is produced through the use of patented technology and special processes, with a rich velvet texture on the outside, while using advanced equipment to ensure a high degree of cleanliness inside.

In addition to making bottle caps, aluminum bottle cap material, especially aluminum foil is used for bottle sealing. The aluminum foil packaging not only has a decorative effect, but also ensures anti-counterfeiting performance, provides anti-counterfeiting labels, and improves consumers' credibility of goods.

Aluminum foil has the physical properties of being easy to fold and stretch, so it can easily fit the contours of bottles and caps, and product labeling can be added at the same time. Generally, champagne sprinkling seals are produced using thick aluminum foil, and its surface is sometimes composited with a plastic layer. In wine bottles, aluminum foil has become an alternative to lead seals.

In order to pursue the stability of aluminum bottle cap materials, Haomei Aluminum has made major adjustments in process flow and equipment investment. In the annealing process, two annealing methods are used. Although the cost increases, it effectively ensures the stability of the performance of the aluminum sheet for closure.

In 2015, Haomei Aluminum invested tens of millions to build a foil rolling mill. The core components are all imported equipment. In terms of plate shape and dimensional tolerance, the accuracy of the product is greatly improved. The finished product can reach more than 1700mm, and the width of the double-slit single finished product can be more than 830mm.

It perfectly solves the problem of the full-head punching equipment introduced by some advanced domestic and foreign cap-making factories. It also meets the requirements of different customers for dimensional tolerance accuracy and aluminum closure sheet width requirements.

Haomei Aluminum has added a new cleaning line to carry out alkali cleaning for customers with higher requirements and manufacturers who need boiling-resistant rice wine bottle caps.

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