Lunch boxes are essential packaging boxes in the food packaging industry. Common lunch box packaging materials on the market include plastic lunch boxes, aluminum foil lunch boxes, etc.. Entre eles, aluminum foil lunch boxes are more commonly used. For lunch box packaging, aluminum foil is widely used due to its excellent barrier properties, flexibility and lightness.
The most suitable and common aluminum foil alloy is usually 3003 liga de folha de alumínio. Folha de alumínio 3003 has many performance advantages in lunch box packaging.
3003 aluminum alloy contains manganese as its main alloying element, with a typical composition of approximately 98% aluminum and 1-1.5% manganês. This composition provides good strength and formability while maintaining high purity.
Liga 3003 provides sufficient strength for packaging applications while maintaining a high degree of formability. 3003 foil can be easily formed and folded to package food, making it ideal for lunchbox packaging.
Manganese is added to the 3003 alloy to enhance its corrosion resistance, making it suitable for contact with food and not harmful to the human body. Folha de alumínio 3003 provides a protective barrier against moisture, oxigênio e outros contaminantes, helping to maintain the freshness and quality of packaged foods.
Aluminum foil made from 3003 alloy typically has a bright, shiny surface finish, which enhances the visual appeal of the aluminum foil lunch box and makes it suitable for branding and labeling purposes.
According to food safety regulations, aluminum foil made of 3003 alloy is considered safe for contact with food. It does not react with acidic or alkaline foods, ensuring that the taste and quality of packaged foods are not affected.
Aluminum foil has excellent thermal conductivity, allowing it to evenly distribute heat when cooking or reheating food inside the lunch box. This feature helps maintain the desired temperature of food for a longer period of time.
Aluminum foil is highly recyclable, and alloy 3003 is no exception. It can be easily collected, recycled and reused, making it an environmentally friendly choice for packaging materials.
3003 aluminum alloy has become the first choice for lunch box packaging due to its combination of strength, conformabilidade, corrosion resistance and food safety properties. Folha de alumínio 3003 provides an effective barrier against external factors while maintaining the freshness and flavor of packaged foods.
