Hardcover book
Hardcover refers to a refined method of making books. Hardcover books are mainly made by performing various modeling processes on the cover, the back of the book block, and the corners of the book. There are many processing methods and forms. For example, book block processing includes round back (ridged or no spine), square back, square corners and round corners, etc.; cover processing is divided into whole surface, joint surface, square round corner, and hot foil , Pressing patterns, etc.
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
The production process of paperback books is simple, low in cost, and convenient for mechanized production. The paperback books can be divided into the following types due to the difference of some craftsmanship: (1) Wire binding paperback. (2) Sewing and binding paperback. (3) Adhesive paperback.
Adhesive binding is a new binding technology that emerged with the emergence of synthetic glue. It began to be used in my country in the 1960s, and has gradually become widely used since then. Cold glue and hot melt glue are used for glue binding. (4) Lock thread and plain packaging.
This is a higher-end binding method, which is mostly used for books with a higher reading frequency and thicker books. Its characteristic is that the binding thread passes through the crease of the signature, and then all signatures of a book are locked together with thread. After the back of the book is brushed with glue, wrapped, heated, dried, and cut on three sides, That is to complete all binding work of a 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.
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Sean Lee 
Iman iman 
Jane Brown