In China, the "foil container," the "silver box" for the purposes of ordinary people also slightly strange, the market is still widely used plastic lunch boxes. Data show that more than the Shanghai market in disposable boxes in use almost 95% of polystyrene plastic lunch boxes. This plastic lunch boxes not only bring harm to human health, but also to the environment caused a greater pollution.

Physical properties of the plastic lunch box when using the obvious drawbacks, when people use disposable foam plastic dinnerware dressed temperature exceeds 65 degrees Celsius heat food or water, this kind of toxic substances contained in tableware easy immersion food. If the excessive concentration of harmful substances, poison will be greater. The results showed that the foreign body absorb long-term disposable foam tableware chemicals will cause harm to the liver, kidneys. In addition to damage to the human body, this kind of "white pollution" to the environment also caused major damage. Discarded in the environment of waste plastic lunch boxes, not only affects the cityscape and the natural landscape, but also because the degradation of the ecological environment is difficult to form a "potentially hazardous."

State and local authorities have promulgated relevant policies, laws and regulations prohibit the use of disposable foam tableware. Unfortunately, these substandard tableware still "prevalent" in people's table, in the case of state's repeated demands, but also just "turn ban for selling" has not been effectively curbed. Now, in order to build a green living based "post-Expo" concept, this meal had to withdraw from the stage of history.

So, what materials to use lunch boxes instead of disposable foam tableware it? Product is light weight, consistent with national food hygiene standards, to facilitate recycling, no harmful substances in the process, and does not pollute renewable resources ...... These advantages make the "foil container" has become the preferred alternative to plastic lunch box. In addition, the "foil container" The main characteristic lies in a higher recycling rate of saving resources and reduce environmental pollution has a very positive meaning.

"Cycle applications" is the "Aluminum" a big valuable properties. According to reports, the reproduction cycle of aluminum can be up to twenty-five times, lifetimes of up to three hundred years, and secondary aluminum production can save a lot of energy. Every ton of recycled aluminum production accounts for only 5% of energy used per ton of aluminum, while carbon dioxide emissions by 91 per cent reduction of hydropower production of primary aluminum, compared with the production of primary aluminum fuel power generation reduced by more than 97%. In addition, geological changes compared to the "white pollution" caused by aluminum lunch boxes placed in the soil can be two to three years of weathering, and does not harm the land and the formation of implantable sustained nature of change.