OPP/AL/NY/PE using a variety of composite materials, such as extinction, PET/AL/NY/PE. OPP/AL/PE structure, composite materials with low oxygen transmission, the advantages of low water vapor transmission, is packaged coffee powder, coffee and so on the water, the best option for oxygen sensitive food, encased in a specially designed gas valve. Storage products in the course of carbon dioxide and other gases from the gas valve can be disclosed, but the package outside air can enter, a strong practical value.