Classification of books and printed products and structure of books (2)

The book consists of two main parts - the book block and the cover. The cover, also known as the book cover, is the surface part of the book and has the function of decorating and protecting the pages. The cover of a paperback book is generally made of a paper material with a good texture. The hardcover cover consists of armored materials (lacquer, artificial leather, various papers, fabrics, etc.) and inner layer materials (cardboard) and Zhongjing Paper. Book shells have soft and hard shells. Soft shells are made from relatively thin cardboard and plastic; hard shells are made from harder cardboard. Medium-diameter paper makes the middle waist of the book case strong and elastic, and it facilitates hot stamping on the middle waist. When reading through the book, Chin Paper is a flexible pillar that supports the book block. Covers include seals, seals, seals, seals, and bookbacks. The book block, also called the book body, is the main part of the book. It is the book that is used to cut the printed matter, and then uses the folded, well-paged signature to carry out the cost of the book. This is the text and diagram of the book wrapped in the cover or hardcover bookcase.

The structure of the paperback book is shown in Figure 1-15.
The structure of the hardcover book is shown in Figure 1-16.

Figure 1-15 paperback book structure

A-riding order b-wire booking c-locking set d-radio glue binding

1 - Book 2 - Book 3 - Cover 4 - Foot 5 - Line 6, 7 - Glue

Figure 1-16 Hardcover book structure core - book block shell - book case

1-Booklet 2-Line Back 3-Back Material (Gauze) 4-Bulk Cloth

5-Book Back Paper 6- Bookmark Ribbon 7- Cardboard 8-Bezel

9- Middle diameter 10 - Zhongjing paper 11 - The middle seam (the distance between cardboard and medium-diameter paper, also known as the book slot) 12-Liaokou