Offset paper and its use. Offset paper, also known as offset printing paper, is a relatively high-end printing paper that is typically used by offset printing machines for book or color printing. Offset paper can be divided into single-sided offset paper and double-sided offset paper, as well as super calendering and ordinary calendering.

The raw materials and properties of offset paper. Offset paper is generally made from bleached chemical coniferous wood pulp and an appropriate amount of bamboo pulp. When processing offset paper, filling and gluing are heavy, and some high-end offset paper also requires surface gluing and calendering. Offset paper requires good water resistance, dimensional stability, and strength when printing due to the principle of ink water balance. Offset paper is often used for color printing, and in order for the ink to restore the original color tone, it is required to have a certain degree of whiteness and smoothness. Offset paper is generally used for printing picture albums, color illustrations, trademarks, covers, ring linings, high-end books, and books. In recent years, due to the improvement of people's culture and living standards, book materials have also developed towards high-end levels, and more and more books, magazines, books, etc. are printed on offset paper. Due to the advantages of offset paper such as whiteness, straightness, flatness, and delicacy, the text in the book and magazine is clear and the book and magazine are flat and not easily deformed. Compared with letterpress and newsprint books and magazines, the grade of offset paper is particularly different, and it is deeply welcomed by readers and users. The number of books and periodicals bound with offset paper will continue to increase significantly in the future to meet market demand.