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Aluminum foil is an important material in laminates and is widely used in the food packaging industry. Its barrier function against the migration of moisture, oxygen and other gases, and volatile aromas, as well as its barrier function against the effects of light, is generally higher than that of any plastic laminate. Therefore, aluminum foil is used in laminates when insufficient barrier properties are the limiting factor in shelf life stability of the food product.
The popularity of Food Packaging Use Jumbo Aluminum Foil Roll will continue to grow. Four-sided fin seal bags are popular in military, medical and retail food applications as well as larger sized institutional food service bags. Pouches for packaging wines from 1.06 to 4.75 gallons (4-18 liters) for the retail and foodservice markets and other foodservice markets were also introduced. In addition, other products are continuing to be developed for other applications.
Aluminum-clad plastic laminates have slightly poorer barrier properties than aluminum foil laminates. The use of aluminum foil for in-package thermal processing in rigid, semi-rigid, and flexible packages allows selection of package geometry to ensure rapid heating and minimize thermal damage during processing.
In the food industry, sealing, mechanical stability and sealing quality are particularly important for packaging. The chemical stability of aluminum foil in contact with food mainly depends on the composition of the food. Based on current toxicological knowledge, the use of aluminium in packaging materials is considered safe, and an inner coating of aluminium foil is recommended in certain circumstances.
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