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Coated paper is also called printed paper. A layer of white paint was applied on the surface of the base paper and processed by supercalendering. It is divided into two types: single- and double-sided. The paper surfaces were divided into two types: glossy surfaces and wove. The paper had a smooth surface, high whiteness, and good ink absorption and inking properties. It is mainly used for offset printing and gravure fine-screen line printing, such as high-end picture albums, calendars, books, and periodicals. The disadvantage is that the powder easily sticks to and falls off when exposed to moisture, and cannot be stored for a long time.