The cyclone clothes are also modified on the basis of folding clothes. Although the appearance of folding improves the unfavorable factors of scroll loading, it is difficult to preserve and use books for a long time because folding will break after long-term reading. So people came up with a way to paste the written pages on the whole paper in order, which is similar to the way of pasting the roof. It's convenient to turn pages like this. However, its external shape is not much different from that of reel loading, and it still needs to be rolled up for storage.
2. Butterfly clothing
During the Tang and Five Dynasties, block printing had become popular and the number of prints was quite large, so the previous book binding form was difficult to adapt to the rapid development of printing industry. After repeated research, people invented the form of butterfly clothing. Butterfly dress is to fold the printed paper in half, then align all the page numbers with the middle seam, stick them on another package of back paper, and then cut them into a book. A book with butterfly costumes is called "butterfly costumes" because it looks like the wings of a butterfly flying. Butterfly skirt only uses paste, no thread, but it is very strong. It can be seen that the ancients were good at learning from the experience of predecessors in the selection of materials and methods of book binding, actively exploring and improving, and accumulated rich experience. Today, we should think about the future development of book binding from the perspective of development, learn from the experience of predecessors, improve and create modern forms.
3. Baobeizhuang
The society is developing and things are progressing, so book binding will inevitably follow the pace of social development and constantly reform and innovate. Although butterflies are equipped with many conveniences, they are not perfect. Because the text faces inward, you have to turn two blank pages every two pages. Zhang Geng Fu said in The Origin of Book Binding in China: "Butterfly binding is beautiful, but the pages are like lines. If you turn it too much, it will eventually fall down. Baobeizhuang runs through the book and is much stronger. " Therefore, in the Yuan Dynasty, Bao Bei costume replaced the butterfly costume. The main difference between a baby costume and a butterfly costume is that the folded words face outwards and turn their backs on each other. The hinge of the two-page version is at the mouth of the book. All the folded pages are stacked together and stamped with discounted stamps. The remaining pages in the version are twisted together with paper. Stick a piece of paper slightly larger than the number of pages on the back of the book, from the front cover to the spine and back cover, and then trim off the remaining edges, thus binding a book. Bao Beizhuang's book is similar to today's book except that the text pages are printed on one side and every two pages are connected at the mouth.