At present, the majority of Chinese liquor, wine, wine and drinks are still mainly glass bottles, so many bottle caps are made of aluminum. At present, China's various liquor production plants have been several thousand, of which nearly 30 liquor bottle cap production line, can produce nearly 100 kinds of caps, the yield is about 5000000000. According to experts, China's anti-theft bottle cap (Aluminium Ropp Cap ) will be 10% annual rate of growth, is expected in 2010 about 15 billion anti-theft caps, aluminum plate sheets need to consume about 53 thousand and 500 to 60 thousand tons.
Since the mid 90s of last century, the PET bottled beverage produced by Coca Cola Co uses plastic anti-theft cover instead of aluminum cover (Aluminum cap) , thus pushing the plastic anti-theft cover to the front desk of beverage packaging. Since then, the domestic packaging enterprises and beverage manufacturers have introduced foreign equipment, and began the large-scale production and application of plastic anti-theft cover. Today, both light and easy to open plastic anti-theft caps (Aluminium ropp cap) for beverage packaging, not only to facilitate consumers, but also accelerated the development of the beverage industry. 【Aluminum cover】
At present, the domestic beverage industry competition, many well-known companies are using the latest production technology and equipment, so that our country's cap machinery and plastic cover production technology has reached the world advanced level. Such as SACMI (SACMI), aicoa (Alcoa) Heskey (Husky), Demag (Demag), Netzsch (Nestal), Engel (Engel) and other world famous mechanical cap have entered into china. At the same time, in the field of plastic bottle cap production, the competition between injection molding and plastic molding has also opened the curtain. Technological innovation is undoubtedly the impetus for the rapid development of plastic anti-theft cover.
(2) Pilfer Proof Aluminum Caps
Aluminium anti-theft caps using sophisticated processing high quality special Aluminum Alloy cap sheet, mainly used for wine and beverage (including steam and steam) and medical health care products packaging, and can satisfy the high temperature sterilization and other special requirements.
Aluminum caps are mostly machined in highly automated production lines, so the requirements for Aluminum Alloy cap sheet material strength, elongation, and dimensional deviations are stringent, otherwise they will break or fold during processing. In order to ensure the bottle cap after forming convenient printing, flat surface, no requirement of cap material roll marks, scratches and stains, the alloy condition of 8011-H14 Aluminum Alloy cap sheet, 3003-H16 Aluminum Alloy cap sheet, general specification of material thickness of 0.20mm ~ 0.23mm, width of 449mm ~ 796mm. The production of Aluminum Alloy cap sheet can be made by hot rolling blank or continuous casting and rolling blank, which is made by cold rolling. At present, China's anti-theft cover material production plant is mostly used for continuous casting and rolling billet, which is superior to the casting billet.
(3) Plastic Pilfer Proof bottle cap;
The plastic bottle cap is complex in structure and has the function of preventing from flowing backward. The surface treatment technique has various ways, and the stereoscopic feeling is strong, and the outward appearance is unique and novel, but the inherent defect can not be neglected. Because the glass bottle adopts the thermoforming process, the size error of the bottle mouth is large, so it is difficult to achieve higher sealing performance. The packaging experts pointed out that due to the presence of strong electrostatic, plastic bottle is easy to adsorb dust in the air, and debris produced on ultrasonic welding when it is difficult to remove, plastic debris on the pollution problem at present there is no complete solution. In addition, individual plastic bottle cap manufacturers to reduce costs, adulteration in raw materials, so that false, sanitary situation worrying. Environmental protection experts believe that the pollution of the natural environment is obvious because a part of the bottle cap is attached to the glass bottle and is not easy to recycle. In addition, compared with the aluminum plastic bottle cap, cost 2 times or more. 【Aluminum alloy cap sheet】
Comparatively, the aluminum bottle cap can overcome the deficiency of the plastic bottle cap. Plastic cover has the advantages of simple structure, strong adaptability, good sealing effect, compared with the aluminum bottle cover plastic bottle, not only superior, also can realize the production mechanization and mass production, and low cost, no pollution, but also by Recyclable. If special and advanced printing methods are adopted, not only can the printing of colorful patterns be printed, but also the anti-counterfeiting effect is very good. Of course, there are some defects in the aluminum cap, such as the different side color of the bottle cap, easy to produce paint phenomenon, the appearance of the lack of change, but these problems can be found from the technical solution.
