1. Newsprint, also known as white newspaper, is mainly used for newspapers and some cheap advertising printing. The manufacturing cost of newsprint is low, and the paper quality is rough, but it is strong enough to withstand high-speed printing. Most newsprint can meet the four-color printing quality of newspaper advertisements. Newsprint is usually in the form of a roll (hence the name roll paper), making it easier to store and print on machines.

2. Coated paper, this is our name. The standard name is printing coated paper, which is a special paper product. The production process is to apply paint on the base paper, so Hong Kong calls it pink paper (many masters from printing factories in Hong Kong call matte coated paper matte pink paper, which is actually matte copper). Coated paper can be divided into single copper paper, double copper paper, snow copper paper, copper Sika and other types according to the coating used, construction method, paper thickness, etc. It is characterized by high surface strength, high smoothness and strong gloss, and has a large pulling force on the printed ink, so it is widely used in high-end printed matter. According to its special manufacturing properties, it is mainly used for printing albums, covers and illustrations of high-end books and periodicals, and color pictures. It can also be used for various product posters, samples, product packaging, trademarks, etc. By the way, the fiber content of coated paper is actually less than that of ordinary paper. This is why scrap collectors are not willing to buy books on coated paper, but are willing to buy books on offset paper.

3. Daoling paper, also known as "Daoling paper", but now most editors call it offset paper directly. Many small editors no longer know the relationship between Daoling paper and offset paper, and even Think of them as different pieces of paper. Daolin paper is made from bleached chemical wood pulp, bamboo pulp, rag pulp and straw pulp. Fillers and glue need to be added appropriately. It is made on a Fourdrinier paper machine and calendered. It has high strength and Printability. According to the glossiness of the paper, it is divided into two types: matte forest paper and smooth forest paper. It is specially used for offset printing and is also suitable for letterpress printing. The basis weight ranges from 40 g/m2 to 150 g/m2. It is generally used for printing. Production of single-color or multi-color book and magazine covers, text, inserts, pictorials, maps, posters, color trademarks and various packaging materials.

4. Light paper, strictly speaking, is not a separate type. It is the abbreviation of light offset paper and should be a branch of offset paper. It is of high quality, light weight, low price, does not contain fluorescent whitening agents, has high mechanical pulp content, is environmentally friendly and comfortable. It has good texture and bulk, high opacity, good printing adaptability and original restoration after printing, good texture, light weight and thick,

5. Dictionary paper is a high-end thin book paper. It should also belong to the category of offset paper. Because it is mainly used for printing dictionaries, dictionaries, classic books and other books with a large number of pages, a high usage rate, and easy to carry, it has high requirements for the pressure and ink color in the printing process, and the paper needs to be thin, strong, and durable. Folded, the paper surface is white and delicate, the texture is tight and smooth, slightly transparent, and has certain water-resistant properties. Its weight is 30~40g/m?. The size of flat paper is generally 787×1092 mm. For details, please see Xinhua Dictionary.

6. Letterpress paper is often confused with newsprint by small editors who are new to the industry. In fact, although they are all rolled paper, the fibers of letterpress paper are relatively uniform. At the same time, the gaps between the fibers are filled with a certain amount of filler and glue, and they have been bleached. Although the ink absorbency is not as good as newsprint, it absorbs ink. The uniformity, water resistance and paper whiteness are better than newsprint. At present, this kind of paper is mainly used to print books and magazines. The text of most scientific and technological books, academic journals, college and technical secondary school textbooks, etc. are all letterpress paper.