Aluminum foil is an important material for laminates and is widely used in the food packaging industry. Its barrier to moisture, oxygen and other gases, as well as to the migration of volatile aromas, and to the effects of light is generally higher than that of any plastic laminate. Therefore, aluminum foil can be used in laminates when insufficient barrier properties are a limiting factor in food shelf-life stability.
The popularity of jumbo aluminum foil rolls for food packaging will continue to grow. Four-sided fin seal bags are popular in military, medical and retail food applications as well as larger sizes for institutional food service bags. Also launched are 1.06 to 4.75 gallon (4-18 L) wine packaging bags for the retail and foodservice markets, as well as other foodservice markets. In addition, development of additional products for other applications continues.
Aluminum plastic-coated laminates have slightly worse barrier properties than aluminum foil laminates. In-package thermal processing using aluminum foil in rigid, semi-rigid and flexible packages allows package geometries to be selected to ensure rapid heating and minimize thermal damage during processing.
In the food industry, sealing, mechanical stability and seal 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 aluminum in packaging materials is considered safe, and in some cases the use of aluminum foil inner coatings is recommended. The large rolls of aluminum foil for food packaging produced by GNEE have been rigorously tested and you can use it with confidence.
