Why are the lunch boxes on the plane all aluminum foil boxes?
hmwadeseo > 06-26-2024, 08:21 AM
Instead of plastic? The major reason is that general plastic products cannot be used for high-temperature heating. For example, plastic products will migrate out of toxic substances when heated. So isn’t ceramics with Chinese characteristics a better choice? Indeed, ceramics can be heated at high temperatures and look elegant and feel good in the hand. The tableware in business class and first class is all kinds of high-grade bone china. However, the cost of all kinds of ceramics is extremely high, and it is impossible to use them once. The cleaning cost is extremely high, and the ceramic utensils are heavy, which will increase aircraft fuel.
As a safe, hygienic and environmentally friendly material, aluminum foil as a packaging material has excellent barrier properties, which can effectively block air, water, and light, thereby maintaining or extending the shelf life and freshness of food. Aviation aluminum foil lunch boxes are generally formed by one-time stamping of 8011 or 3003 alloy aluminum foil through the cooperation of punches and molds. Recycled material. Aluminum foil has excellent heat transfer performance, just to meet the needs of short voyage and fast heating.
Aviation aluminum foil lunch boxes can be classified into two types in terms of appearance and quality: one is a wrinkled lunch box directly punched from light foil, and its thickness is generally 0.06~0.07mm, which is cost-effective; the other is a coating The thickness of aluminum foil lunch box is generally 0.08~0.09mm. The material is at a food-grade resin coating. After high temperature coating, the transparent or white coating is attached to the aluminum foil to isolate the aluminum foil from the air and avoid the oxidation and blackening of the aluminum foil. Therefore, the four major domestic airlines all use such coated aluminum foil boxes.