The production of stone paper is also assembled by a series of equipment, and its design principle is similar to the production equipment of plastic film products. At present, there are four main production methods for the production of stone paper and similar products in the world, namely calendering method, casting method, film blowing method, and biaxial stretching method. The equipment of the calendering method is relatively expensive, and it is mainly used in printing products with complicated processes. The process equipment of the two methods in the middle is simpler and more used for products with a larger proportion and greater physical properties. The last biaxial stretching process equipment is widely used, and the appearance effect is good. The width of the product is from 1200-1400mm, the thickness is 0.15-1mm, and the annual output is 5000-10000 tons/set.
The stone paper/synthetic paper production line includes three parts: material handling (granulation), casting and stretching (papermaking), and coating (paper surface treatment). The supporting process includes the planning and layout of the whole plant, the technical training of the stone paper production line personnel, the installation and maintenance of the complete equipment production line, and the improvement of the stone paper production process.
Once stone paper is scaled up, it can save a lot of wood and plastic. Its process is simple, high investment, large output, and low energy consumption. Stone paper has a wide range of applications, such as daily packing boxes, books, bags, and disposable tableware. It has very strong social value and market advantages.
