The evolution of binding

China's earliest book is to string bamboo chips and wood chips together with a belt or rope, with words written on it, which is called "Jane Eyre". Simple strategies are very complicated and difficult to understand. Later, according to the length of the article, people cut the silk with words on it and rolled it into a roll. Some even put wooden shafts on both ends of the silk, so the book "Scroll Pack" appeared.

After the invention of paper, the characters were written on paper, folded into rectangular brochures repeatedly according to certain specifications, and the front and back sides were glued together with hard paper or thick paper as the front and back covers. This kind of binding was originally used in Buddhist classics, so it is called folding.

In a folded book, the front cover and the back cover are separated, and the first page and the last page of the folded book are glued together. When the book is opened, it tastes delicious, and the middle page flies like a whirlwind, hence the name "whirlwind" (see Figure 7- 1).

Books bound by the above two methods have been turned over for a long time, folded and scattered. In the Song Dynasty, books were bound by pasting or sewing with silk thread, and butterfly clothes and bag back clothes as shown in Figure 7- 1 appeared.

Since the mid-Ming dynasty, there have been thread-bound books. Thread-bound books are firmly bound, beautifully bound and easy to read.

After the Qing Dynasty, movable type printing gradually replaced block printing, the output and variety of printed matter increased, and the binding technology developed accordingly, gradually moving from manual operation to mechanization. At present, in order to preserve our national tradition, a small number of precious editions and ancient books have been produced, and the main binding forms are paperback and hardcover. Binding methods are divided into manual binding, semi-automatic binding and full-automatic binding using linkage machine. Binding technology of common books