The production history of Aluminum Film can be traced b […]
The production history of Aluminum Film can be traced back to the beginning of the 20th century. Before 1900, people could produce small quantities of aluminum foil through hard and painful hammering technology. Over the past 100 years, scientists have continuously improved production technology and equipment, making aluminum foil more and more Thin, the output has also been greatly increased, broadening the application of aluminum foil, from the early chocolate and butter packaging paper, to the current development of beverage packaging, bottle caps, cigarette boxes, aluminum foil hydrogen balls.
Aluminum foil, commonly known as "tin foil", is an aluminum rolled material extruded from aluminum flat ingots for rolling mills. The thickness is between 0.001mm and 0.2mm. The initial tin foil is made of tin, but the quality of tin foil is better. Aluminum foil is hard, tin-flavored and will remain in food, and the low melting point of tin foil is not suitable for barbecue or baked goods, which limits its application in food packaging.
The most common application of aluminum foil is in the field of food packaging. It is a soft metal film with moisture, corrosion resistance, airtight shading, fragrance preservation, non-toxic and tasteless, long-term preservation of food, etc. The packaging of butter in aluminum foil can make the shelf life of butter. It is two to three months longer than tin foil. The thickness of aluminum foil in general food packaging is only 6.5μm (micrometer). The thin aluminum layer is waterproof, keeps food umami, anti-bacterial and anti-invasive. The favor of the packager.
In addition to food, another application area that cannot be ignored is pharmaceutical packaging, which is mainly embodied in blister packaging, which is currently the most important packaging method for western medicine capsules. The blister pack has the advantages of moisture-proof, easy to carry, safe and hygienic, and can effectively protect drugs that are sensitive to the environment. According to the Boston Consulting Report, the annual demand for aluminum foil in China's packaging industry reached 350,000 tons in 2011. It is estimated that the consumption in 2020 will exceed 900,000 tons. Among them, the demand for medical foil is the most obvious. With the tablets, powders, capsules and pellets of traditional Chinese medicines moving from paper bags and plastic bags to aluminum-plastic blister packaging, and China gradually entering the ageing society, the aluminum foil market for pharmaceutical packaging will be even broader.