折页工艺（Folding process）.doc

折页工艺（Folding process） Folding methods are manual folding and machine folding two. Large format printing sheet printing, need to go through the manual or folding machine can become a Book page. The rotary press has a special folding mechanism, so the printing hinge is continuously completed on a machine. Manual folding By hand printing sheets according to the sequence of pages and the prescribed format, folded into a book, called hand fold. With the increase in the degree of binding machinery, manual folding in the book printing factory used less and less, only print fewer books, pages, recovery, fraction mantissa repair, there are some special folding books should be done by hand. Manual folding tool for a folding table and a folding plate. According to the folding situation, print the page, as shown in Figure 2-14, and then eighty percent off, seventy percent off, sixty percent off. Break a good post, check the page order page number is accurate, and whether the creases neat, folded into the book fold mark is centered in the creases and then fine, the folded Book crashed and bound. Two, machine folding Is the folding machine folding sheets, in accordance with the provisions of the format and page order, use the machine folded into a book? At present, the commonly used folding machines are composed of three parts: paper feeding device, folding mechanism and receiving mechanism. The paper feeding device is mainly responsible for separating and delivering the paper, and the printing page can be sent to the hinge part accurately. The folding mechanism is a printing page which is conveyed by a paper feeding device and is folded into book posts in folio format according to the page number format. The paper collecting mechanism is to fold the folded books regularly. 1. folding ready. Folding mechanism is the most important part of folding machine, and its assembly accuracy and adjustment accuracy directly affect the quality of the folding. Therefore, in the folding machin