Hardcover book

Several common forms of hardcover books:
1. Divided by the form of the spine, there are two types: square spine and round spine.
- The square spine is thicker than the book block. Due to the folding and stringing of the book block, the height of the spine is higher than the book block, and the more printed sheets, the more obvious. Therefore, hardcover books with square spine should not be too thick, and generally suitable for spine within 20mm.
- The circular spine , because the positions of the front and back stickers are slightly different, the folding places of the stickers are slightly semicircular, distributed on an arc surface, and their thickness is balanced. The opening of the book block conforms to the convex round of the spine, which is concave round. Therefore, a round spine is better for thicker books. The book with a round spine is formed into an arc after being rounded, and the thickness of the book block is generally 130° for the chord and the arc. Round ridges can be divided into round back without ridges (only round but not ridges) and round back with ridges (rounded ridges, the height of the ridges is generally the same as the thickness of the cardboard of the book case).
2. According to the materials used, it can be divided into two types: the same material on the ridge and the different material on the ridge.
- The spine is made of the same material , that is , the spine and the cover and back cover are made of the same material. There are two kinds of square ridge and round ridge. Hardcover fabrics use paper, fabric, varnished paper, varnished cloth, etc., and are generally equipped with a protective seal. However, there is a kind of book that is printed on the paper with the title, pattern, etc. and laminated on the cardboard. Most of this book has a square spine without a protective seal.
- The spine is made of different materials , that is , the spine and the cover are made of different materials. Usually fabric is used as the spine, and paper is pasted on the hard paper plate as the cover. This form is generally round spine without protective seal.
Paperback book
Difference Comeunder:
1. Plant timberfromThe material is different. Hardcover bookbaiGenerally so hard sheet qualityduMaterials, the materials are more particularzhi. Paperback books are useddaoIt is ordinary paper, and the price is relatively cheap.
2. The binding process is different. The inner pages of hardcover books usually use thread-locking technology, which is not easy to fall off. The delicately printed thin paper of the paperback book is glued on the cardboard to form the book cover. Binding method The paperback book has saddle stitching, and then glue it.
3. Different uses. Hardcover books are generally used for collection, while paperback books are cost-effective for general reading.