First, gravure Gravure, ink and full three-dimensional. In various box printing mode, the print quality is the best. And stable quality. Long plate life. Suitable for large number of mass printing. Gravure printable thin material, such as paper less than 80g. Gravure Engraving complex but high prices, its benzene ink pollute the environment. These two issues affecting the development of gravure. Especially the large number of mass reduction of printed materials, low-cost short version also requires a large number of prints increases, the gravure constantly losing market Second, offset printing Offset printing is mainly used for paper material. Folding format sheetfed offset printing can vary, and more flexible. Offset printing is also functionally continuous improvement. Improved and the installation of some parts, it can be printed corrugated cardboard. Improved and the installation of UV drying device, can be UV printed copies. Third, flexo The main advantage of flexo is simple structure, easy to form a production line. In offset printing, concave, flexo printing equipment in the three boxed flexo machine is the simplest structure. Thus, the relatively low price of flexo machine, less investment and folding carton printing business equipment. Meanwhile, the equipment is simple, easy to operate, easy to repair. Currently, the vast majority of flexo machine, and all such as soups gold, polishing, cutting, cutting, cutting, creasing, perforating, windows and other on-line processing, form a production line. Greatly improve labor productivity. Flexographic printing almost all the boxed print and use all substrates. Especially in the corrugated box printing printing has this unique place. Flexo currently widely used water-based ink. Toxic pollution, an enabling environment for the protection, particularly suitable for packaging box printing.