Large three-dimensional foil bags - plastic film vacuum bags plastic composite film types plastic composite film into plastic film and aluminum composite membrane two kinds. Plastic film structure and composition 1, PET / aluminum CPP (light product structure) 2, PET / AL / PE (10KG below using structure) 3, PET / AL / CPP (Pesticide structure used) 4, PET / AL / NY / PE (re-use of packaging structure) product thickness can recommend or light products according to customer requirements thickness recommend sided 4-sided wire thickness of 10 pesticide products recommend heavy silk packaging products based on product characteristics is recommended sided wire thickness 12 to 15 wire Product specifications roll film width: 1000mm ~ 1500mm. 1000 m length is generally triangular closure bag: width 50mm ~ 1000mm length 2.5 Mira chain bag: Width 50mm ~ 1200mm Height: 1 meter Features flexibility, moisture and oxygen barrier, shading, shielding, anti-static, can be evacuated, can color. Each use a different material structure, leading to the final performance is not the same. Indicators may vary 10-fold or even a hundred times. Scope can be used for food, medicine, pesticide, chemical, mechanical and electrical products. Intelligent packaging materials. 4.0 With the advent of the industrial era, the development and application of intelligent packaging, food packaging will become the new trends, with a huge market potential. It is expected that future smart packaging food contain more complex, remote-readable non-visual information. Safety labels and radio frequency identification (RFID) tags are at the beginning of an electronic tag, in addition to product identification information, date of production, price, electronic tags can be used as time - temperature, leakage, or freshness indicator.