At present, the requirements for food packaging have been improving. For some high-temperature food packaging, aluminum foil packaging bags must be used. Aluminum foil packaging bags have the following characteristics: good sealing, moisture-proof, tasteless, good vacuum effect, low permeability, and not easy to aging; The aluminum foil bag has the characteristics of moisture-proof, rust-proof, anti-static, shielding and light-proof in packaging electronic components, hardware and industrial products; So what is the current application of aluminum foil packaging bags? Haoxin Packaging introduced to users in detail:
1、 Flexible packaging aluminum foil bag
Flexible packaging is a bag container made of flexible composite packaging materials. The emergence of flexible packaging has greatly improved the mechanization and automation level of the food and beverage industry, and accelerated the modernization and socialization process of people's diet. In developed countries, flexible packaging has become one of the main packaging forms of food and beverage, replacing canned and bottled packaging within a certain range. In recent years, China's flexible packaging market has also developed rapidly. So far, 10 aluminum foil composite production lines have been introduced, and different processes such as dry composite, hot melt composite, extrusion composite can be used according to different purposes of flexible packaging. Flexible packaging not only has the effect of moisture-proof and fresh-keeping, but also can print various patterns and characters. It is an ideal material for modern commercial packaging. With the improvement of people's living standards, there is still great room for development of flexible packaging aluminum foil.
2、 Pharmaceutical aluminum foil packaging
Pharmaceutical packaging aluminum foil mainly includes easy-to-open bottle caps for water and injection and pharmaceutical PTP aluminum foil. Because of the advantages of moisture resistance, convenient carrying, safety and health, PTP aluminum foil is widely used in the international pharmaceutical industry. Since 1985, China has used aluminum foil to package drugs. Up to now, the packaging aluminum foil only accounts for 20% of the drug packaging materials. In recent years, the drug foil market has developed rapidly. On the one hand, the pharmaceutical market has developed rapidly, but mainly because the application proportion of 20% aluminum foil in drug packaging has been increasing.
3、 Composite aluminum foil packaging for automobiles
With the vigorous development of China's automobile industry and the continuous improvement of automobile aluminization rate, the market demand for aluminum foil packaging for automobiles has increased rapidly. There are two kinds of aluminum foil packaging for automobiles. One is the composite aluminum foil packaging for automobile air conditioners. China's automobile air conditioners have been fully aluminized, and the annual demand for aluminum foil packaging bags has reached 15000 tons; The other is the composite aluminum foil packaging for automobile radiator, which is used to manufacture automobile radiator, automobile condenser and evaporator. At present, the aluminization rate of automobile radiator reaches 40%, and the annual demand is about 3000 tons.
4、 Aluminum foil packaging for electrolytic capacitor
The aluminum foil packaging used for the electrolytic capacitor is a corrosive material that works under polar conditions. It has high requirements on the structure of the aluminum foil bag. The aluminum foil bag used is divided into three types: cathode aluminum foil, with a thickness of 0.015mm~0.06mm; High-pressure aluminum foil, with a thickness of 0.065mm~0.1mm, is required to be produced with high-purity aluminum; Low-voltage aluminum foil, thickness 0.06mm~0.1mm.