Flexible packaging is a high-performance packaging which is composed of two or more materials with different properties. It has been developing the direction on multiple and special function with excellent performance. Flexible packaging is mainly used in packaging of food, medicine, cosmetics, drinks and beverages as well as other consumer packaging application. There have the typical components as the main material structures.All-Plastic Packaging – More light, transparent, soft, good sealing, advantage in material cost but slightly less in packing performance. With Aluminum or Aluminide Packaging – The material feature has its high moisture resistance, against gas, anti-sunlight, good stiffness in shelf display. With Paper Packaging – Excellent printing performance, good resistance to oxygen and light, anti-aging, good suitability of mechanical processing, good overall visual effect.