Bookbinding

Cardboard is one of the main materials for binding processing, especially the indispensable materials for making hardcover, ancient thread binding and various folders. The thickness, tightness, flatness, moisture content and strength of cardboard, as the backbone of the book cover, are closely related to the processing effect of books, etc. The thickness of cardboard used for binding is 0.7mm, 1mm, 1.5mm, 2mm, 2.5mm and 3mm, and the thickness of cardboard commonly used for book cover is 1.5-2.5m.