With the improvement of people's living standards and the development of tourism, the demand for beer, soda and other beverages and canned foods is increasing. These require modern packaging and decoration to facilitate competition in the international market. In order to adapt to market requirements, people have developed packaging materials such as plastic films and spray foils with good shielding properties, but their overall performance is not as good as overcoating and lamination processes that can be compensated and improved. Therefore, it can be said that aluminum foil is a relatively perfect packaging material with many excellent properties, and it has fully demonstrated its broad application prospects in many fields.
At present, aluminum foil has been fully integrated into our lives.
Household foils are widely used in cooking, freezing, preservation, baking and other industries. In the refrigerator or freezer, aluminum foil can be wrapped directly on the food to prevent the food from deforming, prevent the loss of water in fish, vegetables, fruits, and dishes, and prevent the leakage or mixing of flavors. Since aluminum foil has good and uniform thermal conductivity and heating effect, it can be used in ovens, steamers, etc. to heat directly on the original packaging. Common specifications: 0.007-0.05mm.
Pharmaceutical foil has the advantages of non-toxic, corrosion-resistant, impermeable, heat-proof, moisture-proof, light-blocking, and high-temperature sterilizability. It is mainly used for blister packaging of pharmaceutical capsules, tablets, etc., and bag packaging of powder granules and aqueous agents. , especially PTP aluminum foil is moisture-proof, easy to carry, safe and hygienic, and is widely used in the international pharmaceutical industry. Medicinal aluminum foil processing plants have relatively high production environment requirements, such as no less than a 100,000-level purification workshop. Common medicinal foils on the market come in two alloy states. State: O, after cold punching, used for high-end pharmaceutical packaging; State: H18, after coating, used for PTP medicinal aluminum foil, the common thickness is: 0.006-0.08mm.
Air conditioning foil is a special material for manufacturing heat exchanger fins for air conditioners. The air conditioning foil used in the early days was plain foil. In order to improve the surface properties of the plain foil, an anti-corrosion inorganic coating and a hydrophilic organic coating are applied before forming to form a hydrophilic foil, which is widely used in household industrial air conditioners, refrigeration cabinets, automobile air conditioners and other refrigeration equipment. There is also a hydrophobic foil that makes the surface of the fins hydrophobic to prevent condensation water from adhering. It is mainly used in dryers to improve heating efficiency. The thickness of air conditioning foil is 0.07mm~0.2mm. With the development of technology, air conditioning foils have a trend of further thinning.
