The polishing process has a long history. With the development and progress of continuous application, the content of science and technology is higher and higher, and the scope of application is wider and wider. In particular, the rapid development of water-based coating polishing and UV coating polishing that meet the requirements of safety and environmental protection, as well as the wide application of various online polishing methods, have greatly promoted the popularization, application and technical progress of polishing technology.
China is a large country of bamboo, with 35 genera and nearly 400 species of bamboo plants, and has a long history of cultivation and utilization. Whether it is the quantity of bamboo resources, bamboo forest area and accumulation, or the output and processing level of bamboo forest products, China ranks first in the world in terms of bamboo production, and has the reputation of "world bamboo kingdom". In comparison, bamboo has higher timber yield than trees, shorter timber cycle, easy molding, wide application, and the price is much lower than wood.
Coated paper is also called printing coated paper. Apply a layer of white paint on the surface of the base paper, which is pressed by super calendering. There are two kinds of paper: one side and two sides. The paper has smooth surface, high whiteness and good ink absorption performance. It is mainly used for fine line printing such as offset printing and gravure printing, such as advanced picture books, calendars, illustrations of books and periodicals, etc. The disadvantage is that the powder is easy to bond and fall off after being wet, and it is not easy to preserve for a long time.