Kunshan composite shielding bag with excellent anti-static, anti-RF, water vapor permeation, anti-salt spray, and many other features. Their unique four-layer structure can be formed "induction hood" to protect the bag of goods and electrostatic field isolation. In addition there is a layer consisting of vinyl to eliminate static, anti-static function is superior. Anti-static shielding bags} {inner and outer layers of a transparent material anti-static material, intermediate conductive metal layer translucent, which has a good anti-static, static shielding performance. People feel for food packaging, food packaging derived from the first color, often a good package can give others more profound thinking. Food packaging color contact is very large. Packaging for the role is to protect the merchandise, promotional role. The colors for the promotional role of product self-evident. Not only beautify the commodity, but also plays an essential commodity marketing in the marketing function.