Aluminum foil can be divided into thick foil, single foil and double foil.
Aluminum foil can be divided into thick foil, single foil and double foil.Thick foil (" heavy gaugefoil") : foil of a thickness of 0.1 to 0.2mm.Single-zero foil (" medium gauge foil ") : foil with a thickness of 0.01mm and less than 0.1mm/ m2.Double zero foil (" light gauge foil ") : the so-called double zero foil is the foil whose thickness is measured in mm with two zerocks behind the decimal point. It is usually aluminum foil with the thickness less than 0.01, that is, 0.005~0.009mm aluminum foil.Foreign countries sometimes refer to the aluminum foil with thickness ≤40ltm as "light gauge foil", while the aluminum foil with thickness >40btm is collectively referred to as "heavy gauge foil".
Because of its excellent characteristics, aluminum foil is widely used in food, beverage, cigarettes, pharmaceuticals, photographic plates, household commodities, etc., usually used as its packaging materials;Materials for electrolytic capacitors;Insulation materials for buildings, vehicles, ships, buildings, etc.;Can also be used as decorative gold and silver thread, wallpaper and all kinds of stationery printed matter and light industrial products decoration trademarks.In the above various USES, the most effective performance of aluminum foil is as a packaging material.Aluminum foil is a soft metal film, not only moisture-proof, airtight, shading, abrasion resistance, fragrance, non-toxic and tasteless advantages, but also because of its elegant silver luster, easy to process a variety of colors of the beautiful patterns and patterns, so more easily favored by people.Especially after aluminum foil is compounded with plastic and paper, the shielding property of aluminum foil is integrated with the strength of paper and the thermal sealing property of plastic, which further improves the shielding property of water vapor, air, ultraviolet ray and bacteria necessary for packaging material, and greatly expands the application market of aluminum foil.Due to the packaging of the goods and the outside light, wet, gas, and other sufficient isolation, so that the packaging has been intact protection.Especially for cooking food packaging, the use of this composite aluminum foil material, at least to ensure that food will not spoil more than a year.What's more, heating and unpacking are very convenient and popular with consumers.
With the improvement of people's living standards and the development of tourism, there is an increasing demand for beer, soft drinks and canned food, all of which need modern packaging and decoration to facilitate the competition in the international market.In order to meet the market requirements, people developed good shielding plastic film and spray foil packaging materials, but their comprehensive performance is not as good as through coating and lamination processing can be made up for and improved.Therefore, it can be said that aluminum foil has a variety of excellent properties, relatively perfect packaging materials, in many fields have fully demonstrated its broad application prospects.In order to improve the rolling efficiency and the quality of aluminum foil products, the modern aluminum foil mill has been developing in four directions: large roll, wide width, high speed and automation.The roll width of contemporary aluminum foil mill has reached more than 2200mm, the rolling speed has reached more than 2000m/min, the roll weight has reached more than 20t.The corresponding level of mill automation is also greatly improved, the general installation of the thickness control system (AGC), the majority of the installation of the shape meter (AFC).The aluminum foil industry is facing a period of rapid development.
