Plastic packaging sheet is mainly used in the production of disposable plastic cups, plates, bowls, plates, boxes and other hot forming products, widely used in food, vegetables, fruits, beverages, dairy products, industrial parts and other areas of packaging. With the increasing domestic demand, the use of packaging plastic hot forming sheet is also more and more widely, the amount is increasing year by year, promising. With the country's attention to environmental protection, to adapt to the production of "environmentally friendly degradable sheet production line" has been able to successfully supply various types of "degradation of sheet". Using "nano plastic" manufacturing "nano sheet" has become another focus of attention, but also become a new selling point of the manufacturer ". In order to improve the shelf life and shelf life of the food, the sheet with high barrier properties has become the goal of the development of various production enterprises.